Abstract Thouvenot, L. & M.J. Price (2020). Chiloscyphus parapilistipulus (Lophocoleaceae), a new species of liverwort from New Caledonia, with the typification of Lophocolea pilistipula. Candollea 75: 285–289. In English, English abstract. During a review of Lophocoleaceae types housed in G in the context of research on the liverworts of New Caledonia, a set of three specimens collected by Louise Le Rat in 1909 that were filed as types of Lophocolea pilistipula Steph. (≡ Chiloscyphus pilistipulus (Steph.) J.J. Engel & R.M. Schust.) turned out to be heterogeneous: the one originating from Île des Pins is fertile and corresponds to the protologue as well as Stephani's illustration of this taxon. This original material is designated here as lectotype of Lophocolea pilistipula. The two other specimens in G collected on Mount Dogny are sterile and exhibit some morphological differences from the designated lectotype material, namely the plants are large, with wider stems that have larger and broader leaves with smooth rather than crenulate margins, and that lack trigones. A new fertile collection from Mount Dogny was identified as belonging to Chiloscyphus Corda and is conspecific with the material collected from Mount Dogny over a century earlier. A new species, Chiloscyphus parapilistipulus Thouvenot, is described. It closely resembles Lophocolea pilistipula but differs from it by its larger size, smooth leaf margins, the dioicous sexuality and the ventro-lateral position of the gynoecia at the apex of short leafless branches. Received: June 15, 2020; Accepted: August 31, 2020; First published online: October 29, 2020
{"title":"Chiloscyphus parapilistipulus (Lophocoleaceae), a new species of liverwort from New Caledonia, with the typification of Lophocolea pilistipula","authors":"L. Thouvenot, Michelle J. Price","doi":"10.15553/c2020v752a10","DOIUrl":"https://doi.org/10.15553/c2020v752a10","url":null,"abstract":"Abstract Thouvenot, L. & M.J. Price (2020). Chiloscyphus parapilistipulus (Lophocoleaceae), a new species of liverwort from New Caledonia, with the typification of Lophocolea pilistipula. Candollea 75: 285–289. In English, English abstract. During a review of Lophocoleaceae types housed in G in the context of research on the liverworts of New Caledonia, a set of three specimens collected by Louise Le Rat in 1909 that were filed as types of Lophocolea pilistipula Steph. (≡ Chiloscyphus pilistipulus (Steph.) J.J. Engel & R.M. Schust.) turned out to be heterogeneous: the one originating from Île des Pins is fertile and corresponds to the protologue as well as Stephani's illustration of this taxon. This original material is designated here as lectotype of Lophocolea pilistipula. The two other specimens in G collected on Mount Dogny are sterile and exhibit some morphological differences from the designated lectotype material, namely the plants are large, with wider stems that have larger and broader leaves with smooth rather than crenulate margins, and that lack trigones. A new fertile collection from Mount Dogny was identified as belonging to Chiloscyphus Corda and is conspecific with the material collected from Mount Dogny over a century earlier. A new species, Chiloscyphus parapilistipulus Thouvenot, is described. It closely resembles Lophocolea pilistipula but differs from it by its larger size, smooth leaf margins, the dioicous sexuality and the ventro-lateral position of the gynoecia at the apex of short leafless branches. Received: June 15, 2020; Accepted: August 31, 2020; First published online: October 29, 2020","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"285 - 289"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41991731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Callmander, M.W., A.J. Ford & S. Buerki (2020). New combinations for two species in the genus Synima (Sapindaceae, Cupanieae) from Queensland (Australia). Candollea 75: 241–244. In English, English abstract. Synima Radlk. is a small genus of Sapindaceae distributed in Australia, Indonesia (Moluccas and Western New Guinea) and Papua New Guinea with three species currently accepted. The genus can be recognized by its crested scales on the petals, a pericarp that dries thin and wrinkled, and the seed which has a fleshy, yellow-orange sarcotesta that is either small and basal or ± enclosing the seed. Previous taxonomic studies expressed doubts regarding the generic placement of two species belonging to the genus Sarcotoechia Radlk.: Sarcotoechia serrata S.T. Reynolds and Sarcotoechia heterophylla S.T. Reynolds. A phylogenetic framework has shown that Sarcotoechia is paraphyletic and Sarcotoechia serrata is sister to Synima. Further morphological evidence (e.g., crested petals) support the transfer of the latter two species to Synima and the new combinations are proposed here: Synima heterophylla (S.T. Reynolds) Callm. & Buerki and Synima serrata (S.T. Reynolds) Callm. & Buerki. A key to all species of Synima is presented. Received: June 5, 2020; Accepted: August 24, 2020; First published online: October 29, 2020
{"title":"New combinations for two species in the genus Synima (Sapindaceae, Cupanieae) from Queensland (Australia)","authors":"M. Callmander, A. Ford, S. Buerki","doi":"10.15553/c2020v752a7","DOIUrl":"https://doi.org/10.15553/c2020v752a7","url":null,"abstract":"Abstract Callmander, M.W., A.J. Ford & S. Buerki (2020). New combinations for two species in the genus Synima (Sapindaceae, Cupanieae) from Queensland (Australia). Candollea 75: 241–244. In English, English abstract. Synima Radlk. is a small genus of Sapindaceae distributed in Australia, Indonesia (Moluccas and Western New Guinea) and Papua New Guinea with three species currently accepted. The genus can be recognized by its crested scales on the petals, a pericarp that dries thin and wrinkled, and the seed which has a fleshy, yellow-orange sarcotesta that is either small and basal or ± enclosing the seed. Previous taxonomic studies expressed doubts regarding the generic placement of two species belonging to the genus Sarcotoechia Radlk.: Sarcotoechia serrata S.T. Reynolds and Sarcotoechia heterophylla S.T. Reynolds. A phylogenetic framework has shown that Sarcotoechia is paraphyletic and Sarcotoechia serrata is sister to Synima. Further morphological evidence (e.g., crested petals) support the transfer of the latter two species to Synima and the new combinations are proposed here: Synima heterophylla (S.T. Reynolds) Callm. & Buerki and Synima serrata (S.T. Reynolds) Callm. & Buerki. A key to all species of Synima is presented. Received: June 5, 2020; Accepted: August 24, 2020; First published online: October 29, 2020","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"241 - 244"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46918893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Applequist, W.L. (2020). A revision of Homalium sect. Rhodonisa (Salicaceae) endemic to Madagascar. Candollea 75: 245–268. In English, English & French abstracts. Homalium sect. Rhodonisa (Tul.) Sleumer is endemic to Madagascar and has included three recognized species. A new revisionary treatment of the section is presented and an identification key is provided. Twelve species are recognized, of which seven are newly described: Homalium analavelonae Appleq., Homalium ihosyense Appleq., Homalium megaphyllum Appleq., Homalium phillipsonii Appleq., Homalium pseudoracemosum Appleq., Homalium rakotovaoi Appleq., and Homalium vohitsiandrianense Appleq. Two lectotypes are designated. Taxonomic novelties are provided with line drawings or scans of their holotypes. Risk of extinction assessments indicate that two taxa are “Critically Endangered”, one is “Endangered” and four “Vulnerable”. Occasional hybridization is observed. Some specimens are not classifiable and it is possible that other unrecognized species exist.
{"title":"A revision of Homalium sect. Rhodonisa (Salicaceae) endemic to Madagascar","authors":"W. Applequist","doi":"10.15553/c2020v752a8","DOIUrl":"https://doi.org/10.15553/c2020v752a8","url":null,"abstract":"Abstract Applequist, W.L. (2020). A revision of Homalium sect. Rhodonisa (Salicaceae) endemic to Madagascar. Candollea 75: 245–268. In English, English & French abstracts. Homalium sect. Rhodonisa (Tul.) Sleumer is endemic to Madagascar and has included three recognized species. A new revisionary treatment of the section is presented and an identification key is provided. Twelve species are recognized, of which seven are newly described: Homalium analavelonae Appleq., Homalium ihosyense Appleq., Homalium megaphyllum Appleq., Homalium phillipsonii Appleq., Homalium pseudoracemosum Appleq., Homalium rakotovaoi Appleq., and Homalium vohitsiandrianense Appleq. Two lectotypes are designated. Taxonomic novelties are provided with line drawings or scans of their holotypes. Risk of extinction assessments indicate that two taxa are “Critically Endangered”, one is “Endangered” and four “Vulnerable”. Occasional hybridization is observed. Some specimens are not classifiable and it is possible that other unrecognized species exist.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"245 - 268"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46166110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Schatz, G.E., P.P. Lowry II & P.B. Phillipson (2020). Taxonomic studies of Diospyros (Ebenaceae) from the Malagasy region. V. Synoptic revision of the Bernieriana group in Madagascar and the Comoro Islands. Candollea 75: 203–218. In English, English and French abstracts. A synoptic revision of the Bernieriana group of Diospyros L. (Ebenaceae) in Madagascar and the Comoro Islands is presented in which seven species are recognized, including four new species that are described and illustrated (Diospyros hongwae G.E. Schatz, Lowry & Phillipson, Diospyros ranirisonii G.E. Schatz, Lowry & Phillipson, Diospyros silicea G.E. Schatz, Lowry & Phillipson, and Diospyros suarezensis G.E. Schatz, Lowry & Phillipson). A key to the species is provided, along with a risk of extinction assessment for each species using the IUCN Red List criteria. Two species are assessed as “Endangered” (Diospyros hongwae and Diospyros silicea), one as “Vulnerable” (Diospyros ranirisonii), two as “Near Threatened” (Diospyros suarezensis and Diospyros torquata H. Perrier), and two as “Least Concern” (Diospyros bernieriana (Baill.) H. Perrier and Diospyros danguyana H. Perrier).
{"title":"Taxonomic studies of Diospyros (Ebenaceae) from the Malagasy region. V. Synoptic revision of the Bernieriana group in Madagascar and the Comoro Islands","authors":"G. Schatz, P. Lowry, P. Phillipson","doi":"10.15553/c2020v752a5","DOIUrl":"https://doi.org/10.15553/c2020v752a5","url":null,"abstract":"Abstract Schatz, G.E., P.P. Lowry II & P.B. Phillipson (2020). Taxonomic studies of Diospyros (Ebenaceae) from the Malagasy region. V. Synoptic revision of the Bernieriana group in Madagascar and the Comoro Islands. Candollea 75: 203–218. In English, English and French abstracts. A synoptic revision of the Bernieriana group of Diospyros L. (Ebenaceae) in Madagascar and the Comoro Islands is presented in which seven species are recognized, including four new species that are described and illustrated (Diospyros hongwae G.E. Schatz, Lowry & Phillipson, Diospyros ranirisonii G.E. Schatz, Lowry & Phillipson, Diospyros silicea G.E. Schatz, Lowry & Phillipson, and Diospyros suarezensis G.E. Schatz, Lowry & Phillipson). A key to the species is provided, along with a risk of extinction assessment for each species using the IUCN Red List criteria. Two species are assessed as “Endangered” (Diospyros hongwae and Diospyros silicea), one as “Vulnerable” (Diospyros ranirisonii), two as “Near Threatened” (Diospyros suarezensis and Diospyros torquata H. Perrier), and two as “Least Concern” (Diospyros bernieriana (Baill.) H. Perrier and Diospyros danguyana H. Perrier).","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"203 - 218"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49387165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Chatelain, C., F. Andrieu & A. Dobignard (2020). A new Fabaceae species from western Sahara (Morocco): Lotus zemmouriensis. Candollea 75: 189–192. In French, English and French abstracts. A new species of Lotus L. (Fabaceae) is described for the Moroccan Western Sahara: Lotus zemmouriensis C. Chatel., F. Andrieu & Dobignard. The new species resemble Lotus glinoides Delile but differs by its smaller pods and by its erectflexuous hairs on stems and leaves. Seven species of the genus are known in Western Sahara, three of which are endemic (not including the new species). This species is probably not rare, but the collect of plants in this desert area remains very random for climatic reasons, moreover this small species crawling on the sand has certainly been confused with others for a long time. The new species is provided with a line drawing and field photographs. A key to identify the Lotus of Western Sahara is presented.
[摘要]Chatelain, C.， F. Andrieu & A. Dobignard(2020)。标题西撒哈拉(摩洛哥)豆科一新种:泽莫里莲。烛台学报75:189-192。法文、英文和法文摘要。报道了摩洛哥西撒哈拉地区荷花属(Fabaceae)一新种:荷花(Lotus zemmouriensis C. Chatel)。F.安德烈和多伯纳。新物种类似于莲花，但不同之处在于其较小的豆荚和茎叶上直立弯曲的毛。在西撒哈拉已知该属的7种，其中3种是当地特有的(不包括新物种)。这个物种可能并不罕见，但由于气候原因，这个沙漠地区的植物收集仍然非常随机，而且这个在沙子上爬行的小物种肯定已经和其他物种混淆了很长一段时间。附有新种的线条图和野外照片。提出了一种识别西撒哈拉莲花的钥匙。
{"title":"Une espèce nouvelle de Fabaceae du Sahara occidental (Maroc): Lotus zemmouriensis","authors":"C. Chatelain, F. Andrieu, A. Dobignard","doi":"10.15553/c2020v752a3","DOIUrl":"https://doi.org/10.15553/c2020v752a3","url":null,"abstract":"Abstract Chatelain, C., F. Andrieu & A. Dobignard (2020). A new Fabaceae species from western Sahara (Morocco): Lotus zemmouriensis. Candollea 75: 189–192. In French, English and French abstracts. A new species of Lotus L. (Fabaceae) is described for the Moroccan Western Sahara: Lotus zemmouriensis C. Chatel., F. Andrieu & Dobignard. The new species resemble Lotus glinoides Delile but differs by its smaller pods and by its erectflexuous hairs on stems and leaves. Seven species of the genus are known in Western Sahara, three of which are endemic (not including the new species). This species is probably not rare, but the collect of plants in this desert area remains very random for climatic reasons, moreover this small species crawling on the sand has certainly been confused with others for a long time. The new species is provided with a line drawing and field photographs. A key to identify the Lotus of Western Sahara is presented.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"189 - 192"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47021397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract STONE, R.D. (2020). New species of Memecylon (Melastomataceae) from Madagascar: treasures of the TEF Herbarium. Candollea 75: 219–239. In English, English and French abstracts. Memecylon L. (Melastomataceae, Olisbeoideae) is a widespread paleotropical genus of forest shrubs and small trees, and is one of the ten most species-rich genera of woody plants in Madagascar. In a previous treatment, Jacques-Félix recognized 78 species of Memecylon on the island, of which all are endemic and most are known from just one or two sites. The present work describes and illustrates nine new species of Memecylon from Madagascar (including Memecylon complanatum R.D. Stone, Memecylon convergens R.D. Stone, Memecylon fofifa R.D. Stone, Memecylon longipetiolatum R.D. Stone, Memecylon paraxenum R.D. Stone, Memecylon potamicum R.D. Stone, Memecylon pseudogaleatum R.D. Stone, Memecylon subchartaceum R.D. Stone, and Memecylon unguiculare R.D. Stone), based mainly on material received on loan from the FO.FI.FA Herbarium (TEF). The conservation status of each species is provisionally assessed in accordance with the IUCN Red List Categories and Criteria. Given the extensive anthropogenic deforestation of Madagascar, one must consider the possibility that Memecylon complanatum, Memecylon paraxenum, and Memecylon pseudogaleatum are already extinct since these three species have not been recollected within the last 50–60 years. Work is ongoing towards a comprehensive taxonomic revision of Memecylon in Madagascar.
{"title":"New species of Memecylon (Melastomataceae) from Madagascar: treasures of the TEF Herbarium","authors":"R. Stone","doi":"10.15553/c2020v752a6","DOIUrl":"https://doi.org/10.15553/c2020v752a6","url":null,"abstract":"Abstract STONE, R.D. (2020). New species of Memecylon (Melastomataceae) from Madagascar: treasures of the TEF Herbarium. Candollea 75: 219–239. In English, English and French abstracts. Memecylon L. (Melastomataceae, Olisbeoideae) is a widespread paleotropical genus of forest shrubs and small trees, and is one of the ten most species-rich genera of woody plants in Madagascar. In a previous treatment, Jacques-Félix recognized 78 species of Memecylon on the island, of which all are endemic and most are known from just one or two sites. The present work describes and illustrates nine new species of Memecylon from Madagascar (including Memecylon complanatum R.D. Stone, Memecylon convergens R.D. Stone, Memecylon fofifa R.D. Stone, Memecylon longipetiolatum R.D. Stone, Memecylon paraxenum R.D. Stone, Memecylon potamicum R.D. Stone, Memecylon pseudogaleatum R.D. Stone, Memecylon subchartaceum R.D. Stone, and Memecylon unguiculare R.D. Stone), based mainly on material received on loan from the FO.FI.FA Herbarium (TEF). The conservation status of each species is provisionally assessed in accordance with the IUCN Red List Categories and Criteria. Given the extensive anthropogenic deforestation of Madagascar, one must consider the possibility that Memecylon complanatum, Memecylon paraxenum, and Memecylon pseudogaleatum are already extinct since these three species have not been recollected within the last 50–60 years. Work is ongoing towards a comprehensive taxonomic revision of Memecylon in Madagascar.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"219 - 239"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42803908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Jeanmonod, D. (2020). Importance and characteristics of the Cyrno-continental taxa, and analysis of their absence outside Corsica. Candollea 75: 291–310. In French, English and French abstracts. Corsica contains a flora present on the European continent but absent from all the other large Mediterranean islands (Balearic Islands, Cyprus, Crete, Sardinia and Sicily). The study analyzes all the taxa of this flora called here Cyrno-continental and represented by 258 taxa (12 % of the native flora). Its characteristics (biological, biogeographical and chorological types, vegetation belts and habitats) are analyzed here and appear to be very different from those of the total native flora. This flora directly depends on the geographical characteristics of Corsica distinct from those of the other islands (latitude, reliefs, temperate vegetation belts in altitude) because 59.8 % of these taxa find their limits of distribution in Corsica. Some of them have found a postglacial refuge in Corsica, others have been able to establish themselves thanks to the great wealth of its habitats, notably humid. Others have limited distribution areas that have not allowed them to colonize other islands. Expansion capabilities, environmental change and chance also play a role in some cases.
{"title":"Importance et caractéristiques des taxons cyrno-continentaux, et analyse de leur absence hors de Corse","authors":"D. Jeanmonod","doi":"10.15553/c2020v752a11","DOIUrl":"https://doi.org/10.15553/c2020v752a11","url":null,"abstract":"Abstract Jeanmonod, D. (2020). Importance and characteristics of the Cyrno-continental taxa, and analysis of their absence outside Corsica. Candollea 75: 291–310. In French, English and French abstracts. Corsica contains a flora present on the European continent but absent from all the other large Mediterranean islands (Balearic Islands, Cyprus, Crete, Sardinia and Sicily). The study analyzes all the taxa of this flora called here Cyrno-continental and represented by 258 taxa (12 % of the native flora). Its characteristics (biological, biogeographical and chorological types, vegetation belts and habitats) are analyzed here and appear to be very different from those of the total native flora. This flora directly depends on the geographical characteristics of Corsica distinct from those of the other islands (latitude, reliefs, temperate vegetation belts in altitude) because 59.8 % of these taxa find their limits of distribution in Corsica. Some of them have found a postglacial refuge in Corsica, others have been able to establish themselves thanks to the great wealth of its habitats, notably humid. Others have limited distribution areas that have not allowed them to colonize other islands. Expansion capabilities, environmental change and chance also play a role in some cases.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"291 - 310"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47133357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Hanes, M.M., G.E. Schatz & M.W. Callmander (2020). Transfer of the Malagasy genera Humbertianthus and Macrostelia to Hibiscus (Malvaceae) with description of four new species. Candollea 75: 193–202. In English, English and French abstracts. Two Malagasy species of the genus Macrostelia Hochr. (Malvaceae) are transferred to Hibiscus L. and two new combinations are proposed: Hibiscus calyculatus (Hochr.) M. Hanes, G.E. Schatz & Callm. and Hibiscus involucratus (Hochr.) M. Hanes & G.E. Schatz & Callm. The monotypic genus Humbertianthus Hochr. with its single species Humbertianthus cardiostegius Hochr. was defined as a taxon in its bud stage and represented unopened flowering collections of Hibiscus laurinus Baill. Several recent herbarium collections from the eastern humid forest of Madagascar represent four new restricted range species: Hibiscus ambanitazensis M. Hanes & G.E. Schatz, Hibiscus analalavensis M. Hanes & G.E. Schatz, Hibiscus ankeranensis M. Hanes & G.E. Schatz, Hibiscus vohipahensis M. Hanes & G.E. Schatz. Each of the new species are documented by field photographs and their geographic distribution is presented. Risk of extinction assessments of the seven species discussed indicate three taxa are threatened as “Critically Endangered”, and four are “Least concern”.
[摘要]Hanes, m.m.， G.E. Schatz & M.W. Callmander(2020)。马达加斯加的Humbertianthus属和Macrostelia属向木槿属(锦葵科)的转移及四个新种的描述。烛台学报75:193-202。英文，英文和法文摘要。Macrostelia Hochr属的两个马达加斯加种。(Malvaceae)转移到Hibiscus L.，并提出了两个新的组合:Hibiscus calyculatus (Hochr.)。M. Hanes, ge . Schatz & Callm。和芙蓉(Hochr.)M. Hanes & ge . Schatz & Callm。单型属:黄花属。和它的单一种Humbertianthus cardiostegius Hochr。定义为一个处于芽期的分类单元，代表木槿(Hibiscus laurinus Baill)未开放的花丛。最近从马达加斯加东部潮湿森林中采集的几个植物标本代表了四种新的限制范围物种:ambanitazensis M. Hanes & G.E. Schatz, analalavensis M. Hanes & G.E. Schatz, ankeranensis M. Hanes & G.E. Schatz, vohipahensis M. Hanes & G.E. Schatz。每一种新种都有野外照片记录，并介绍了它们的地理分布。对所讨论的七个物种的灭绝风险评估表明，三个分类群受到“极度濒危”的威胁，四个分类群受到“最不关注”的威胁。
{"title":"Transfer of the Malagasy genera Humbertianthus and Macrostelia to Hibiscus (Malvaceae) with description of four new species","authors":"Margaret M. Hanes, G. Schatz, M. Callmander","doi":"10.15553/c2020v752a4","DOIUrl":"https://doi.org/10.15553/c2020v752a4","url":null,"abstract":"Abstract Hanes, M.M., G.E. Schatz & M.W. Callmander (2020). Transfer of the Malagasy genera Humbertianthus and Macrostelia to Hibiscus (Malvaceae) with description of four new species. Candollea 75: 193–202. In English, English and French abstracts. Two Malagasy species of the genus Macrostelia Hochr. (Malvaceae) are transferred to Hibiscus L. and two new combinations are proposed: Hibiscus calyculatus (Hochr.) M. Hanes, G.E. Schatz & Callm. and Hibiscus involucratus (Hochr.) M. Hanes & G.E. Schatz & Callm. The monotypic genus Humbertianthus Hochr. with its single species Humbertianthus cardiostegius Hochr. was defined as a taxon in its bud stage and represented unopened flowering collections of Hibiscus laurinus Baill. Several recent herbarium collections from the eastern humid forest of Madagascar represent four new restricted range species: Hibiscus ambanitazensis M. Hanes & G.E. Schatz, Hibiscus analalavensis M. Hanes & G.E. Schatz, Hibiscus ankeranensis M. Hanes & G.E. Schatz, Hibiscus vohipahensis M. Hanes & G.E. Schatz. Each of the new species are documented by field photographs and their geographic distribution is presented. Risk of extinction assessments of the seven species discussed indicate three taxa are threatened as “Critically Endangered”, and four are “Least concern”.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"193 - 202"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48774729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Taylor, C.M., R.E. Gereau & H.H. Schmidt (2020). Some distinctive new species of Psychotria (Rubiaceae, Psychotrieae) from Madagascar. Candollea 75: 159–182. In English, English and French abstracts. Psychotria L. (Rubiaceae, Psychotrieae) is an unusually species-rich genus in Madagascar. Recent botanical explorations here have found a number of undescribed species, and some unusual morphological structures for this genus. Here ten new Psychotria species from Madagascar are formally described: Psychotria ambatovensis C.M. Taylor, Psychotria antilahimenae C.M. Taylor, Psychotria birkinshawiana C.M. Taylor, Psychotria davisiana C.M. Taylor, Psychotria eumachioides C.M. Taylor, Psychotria hamifera C.M. Taylor, Psychotria mutabilis C.M. Taylor, Psychotria notopleuroides C.M. Taylor, Psychotria palifera C.M. Taylor, and Psychotria razafimandimbisonii C.M. Taylor. Unusual morphological features of some of these species include a prostrate habit, deeply retuse leaves, and enlarged, persistent, funnelform stipules. Assessment of the conservation status of these using IUCN Red List categories finds four of them “Vulnerable” and six “Endangered”.
{"title":"Some distinctive new species of Psychotria (Rubiaceae, Psychotrieae) from Madagascar","authors":"Charlotte M. Taylor, R. Gereau, Heidi H. Schmidt","doi":"10.15553/c2020v752a1","DOIUrl":"https://doi.org/10.15553/c2020v752a1","url":null,"abstract":"Abstract Taylor, C.M., R.E. Gereau & H.H. Schmidt (2020). Some distinctive new species of Psychotria (Rubiaceae, Psychotrieae) from Madagascar. Candollea 75: 159–182. In English, English and French abstracts. Psychotria L. (Rubiaceae, Psychotrieae) is an unusually species-rich genus in Madagascar. Recent botanical explorations here have found a number of undescribed species, and some unusual morphological structures for this genus. Here ten new Psychotria species from Madagascar are formally described: Psychotria ambatovensis C.M. Taylor, Psychotria antilahimenae C.M. Taylor, Psychotria birkinshawiana C.M. Taylor, Psychotria davisiana C.M. Taylor, Psychotria eumachioides C.M. Taylor, Psychotria hamifera C.M. Taylor, Psychotria mutabilis C.M. Taylor, Psychotria notopleuroides C.M. Taylor, Psychotria palifera C.M. Taylor, and Psychotria razafimandimbisonii C.M. Taylor. Unusual morphological features of some of these species include a prostrate habit, deeply retuse leaves, and enlarged, persistent, funnelform stipules. Assessment of the conservation status of these using IUCN Red List categories finds four of them “Vulnerable” and six “Endangered”.","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"159 - 182"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44598542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Buerki, S., J. Munzinger, P.P. Lowry II & M.W. Callmander (2020). Two new genera of Sapindaceae (Cupanieae) from the southern Pacific: Lepidocupania and Neoarytera. Candollea 75: 269–284. In English, English abstract. Phylogenetic analyses of the family Sapindaceae inferred from nuclear and plastid sequence data have revealed a high level of para- and polyphyly at the subfamilial, tribal, and generic levels. A phylogenetic study focusing on taxa in the southern Pacific belonging to tribe Cupanieae has shown that the two most species-rich genera, Arytera Blume and Cupaniopsis Radlk., are polyphyletic. This study aims to clarify generic limits among the taxa currently placed in these two genera by identifying morphological features that support monophyletic groups suitable for recognition at the generic level. Specimens deposited in major herbaria holding material of these taxa were examined to complement extensive field observations. Careful consideration of morphological features in light of previous taxonomic treatments and the results of phylogenetic analyses enabled us to propose a re-aligned generic framework for Cupanieae in which two new genera are described to accommodate species previously placed in Arytera and Cupaniopsis: viz., Lepidocupania Buerki, Callm., Munzinger & Lowry (21 species) and Neoarytera Callm., Buerki, Munzinger & Lowry (4 species). A total of 25 new combinations are made, lectotypes are designated for nine names (two first step and seven second-step), and one new synonym is established. A key to the newly circumscribed genera Arytera and Cupaniopsis, along with allied genera, is provided, accompanied by information on the distribution and ecology of each species. Received: June 26, 2020; Accepted: August 28, 2020; First published online: October 29, 2020
{"title":"Two new genera of Sapindaceae (Cupanieae) from the southern Pacific: Lepidocupania and Neoarytera","authors":"S. Buerki, J. Munzinger, P. Lowry, M. Callmander","doi":"10.15553/c2020v752a9","DOIUrl":"https://doi.org/10.15553/c2020v752a9","url":null,"abstract":"Abstract Buerki, S., J. Munzinger, P.P. Lowry II & M.W. Callmander (2020). Two new genera of Sapindaceae (Cupanieae) from the southern Pacific: Lepidocupania and Neoarytera. Candollea 75: 269–284. In English, English abstract. Phylogenetic analyses of the family Sapindaceae inferred from nuclear and plastid sequence data have revealed a high level of para- and polyphyly at the subfamilial, tribal, and generic levels. A phylogenetic study focusing on taxa in the southern Pacific belonging to tribe Cupanieae has shown that the two most species-rich genera, Arytera Blume and Cupaniopsis Radlk., are polyphyletic. This study aims to clarify generic limits among the taxa currently placed in these two genera by identifying morphological features that support monophyletic groups suitable for recognition at the generic level. Specimens deposited in major herbaria holding material of these taxa were examined to complement extensive field observations. Careful consideration of morphological features in light of previous taxonomic treatments and the results of phylogenetic analyses enabled us to propose a re-aligned generic framework for Cupanieae in which two new genera are described to accommodate species previously placed in Arytera and Cupaniopsis: viz., Lepidocupania Buerki, Callm., Munzinger & Lowry (21 species) and Neoarytera Callm., Buerki, Munzinger & Lowry (4 species). A total of 25 new combinations are made, lectotypes are designated for nine names (two first step and seven second-step), and one new synonym is established. A key to the newly circumscribed genera Arytera and Cupaniopsis, along with allied genera, is provided, accompanied by information on the distribution and ecology of each species. Received: June 26, 2020; Accepted: August 28, 2020; First published online: October 29, 2020","PeriodicalId":55276,"journal":{"name":"Candollea","volume":"75 1","pages":"269 - 284"},"PeriodicalIF":0.6,"publicationDate":"2020-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49289811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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