Pub Date : 2020-11-30DOI: 10.5252/adansonia2020v42a18
Lucie Bauret, R. Vázquez, S. Molino, M. Gaudeul, F. Rakotondrainibe, André Luís de Gasper, G. Rouhan
ABSTRACT In the fern family Blechnaceae, Cranfillia Gasper & V.A.O.Dittrich and Austroblechnum Gasper & V.A.O.Dittrich are two genera recently described from the splitting of Blechnum L. The assignation of species to Cranfillia or Austroblechnum could be difficult due to their morphological similarities. Focusing on Austroblechnum bakeri (C.Chr.) Gasper & V.A.O.Dittrich, and based on new molecular and morphological evidence, we show that Austroblechnum bakeri actually belongs to the genus Cranfillia as Cranfillia bakeri (C.Chr.) Vázquez Ferreira & S. Molino, comb. nov. This new combination extends the distribution of the genus Cranfillia to Madagascar and East Africa. Additionally, we propose that partially adnate basal pairs of pinnae and deflexed first pair of pinnae could represent new diagnostic characters to distinguish Cranfillia from Austroblechnum. Finally, we provide a taxonomic treatment of Cranfillia bakeri with all recognized synonyms, and conduct detailed lectotypification for Blechnum bakeri C.Chr.
{"title":"New molecular and morphological evidences favor a combination of Blechnum bakeri C.Chr. in Cranfillia Gasper & V.A.O.Dittrich (Blechnaceae, Polypodiopsida), thus extending the distribution of Cranfillia to Madagascar and East Africa","authors":"Lucie Bauret, R. Vázquez, S. Molino, M. Gaudeul, F. Rakotondrainibe, André Luís de Gasper, G. Rouhan","doi":"10.5252/adansonia2020v42a18","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a18","url":null,"abstract":"ABSTRACT In the fern family Blechnaceae, Cranfillia Gasper & V.A.O.Dittrich and Austroblechnum Gasper & V.A.O.Dittrich are two genera recently described from the splitting of Blechnum L. The assignation of species to Cranfillia or Austroblechnum could be difficult due to their morphological similarities. Focusing on Austroblechnum bakeri (C.Chr.) Gasper & V.A.O.Dittrich, and based on new molecular and morphological evidence, we show that Austroblechnum bakeri actually belongs to the genus Cranfillia as Cranfillia bakeri (C.Chr.) Vázquez Ferreira & S. Molino, comb. nov. This new combination extends the distribution of the genus Cranfillia to Madagascar and East Africa. Additionally, we propose that partially adnate basal pairs of pinnae and deflexed first pair of pinnae could represent new diagnostic characters to distinguish Cranfillia from Austroblechnum. Finally, we provide a taxonomic treatment of Cranfillia bakeri with all recognized synonyms, and conduct detailed lectotypification for Blechnum bakeri C.Chr.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74842462","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}
Pub Date : 2020-11-23DOI: 10.5252/adansonia2020v42a17
Maxime Rome, G. C. d'Eeckenbrugge
ABSTRACT Until recently, Passiflora cerasina was known only from two herbarium specimens. Three botanical expeditions in French Guiana, in 2008, 2009, and 2017, have greatly improved our knowledge on its geographical distribution and morphological variation. A key to the Guianese species of series Laurifoliae is given. As the holotype mentioned in the original description is missing, we propose a neotype collected from the locus classicus.
{"title":"New insights into the distribution and variation of Passiflora cerasina Annonay & Feuillet","authors":"Maxime Rome, G. C. d'Eeckenbrugge","doi":"10.5252/adansonia2020v42a17","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a17","url":null,"abstract":"ABSTRACT Until recently, Passiflora cerasina was known only from two herbarium specimens. Three botanical expeditions in French Guiana, in 2008, 2009, and 2017, have greatly improved our knowledge on its geographical distribution and morphological variation. A key to the Guianese species of series Laurifoliae is given. As the holotype mentioned in the original description is missing, we propose a neotype collected from the locus classicus.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77001549","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}
Pub Date : 2020-11-02DOI: 10.5252/adansonia2020v42a16
J. Engel, D. Sabatier
ABSTRACT A new species of Terminalia L. (Combretaceae) from the Guiana shield is described as T. carinata Sabatier & J.Engel, sp. nov. based on morphological evidences. This new species was often misidentified as T. guyanensis Eichler from which it differs, as well as from other neotropical Terminalia, by its leaf undersurface palish-gray and slightly pubescent, quite long petioles and fruits with two wings wider than the body that is distinctly keeled on one face and flat on the other. An updated description of T. guyanensis is provided and the conservation status of T. carinata Sabatier & J.Engel, sp. nov. and T. guyanensis is evaluated according to IUCN criteria and a status of Least Concern (LC) is proposed for these two species.
{"title":"Terminalia carinata Sabatier & J.Engel, sp. nov. (Combretaceae), a new large tree species from the Guiana shield revealed by re-examination of material previously identified as T. guyanensis Eichler","authors":"J. Engel, D. Sabatier","doi":"10.5252/adansonia2020v42a16","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a16","url":null,"abstract":"ABSTRACT A new species of Terminalia L. (Combretaceae) from the Guiana shield is described as T. carinata Sabatier & J.Engel, sp. nov. based on morphological evidences. This new species was often misidentified as T. guyanensis Eichler from which it differs, as well as from other neotropical Terminalia, by its leaf undersurface palish-gray and slightly pubescent, quite long petioles and fruits with two wings wider than the body that is distinctly keeled on one face and flat on the other. An updated description of T. guyanensis is provided and the conservation status of T. carinata Sabatier & J.Engel, sp. nov. and T. guyanensis is evaluated according to IUCN criteria and a status of Least Concern (LC) is proposed for these two species.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82089906","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}
Pub Date : 2020-10-19DOI: 10.5252/adansonia2020v42a15
Kazem Negaresh
ABSTRACT Three Iraqi endemic taxa of Centaurea L. (Asteraceae) are typified, namely Centaurea foveolata Blakelock, C. fusiformis Blakelock, and C. longipedunculata Sch. Bip. ex Boiss. RÉSUMÉ Typification de trois taxons endémiques iraquiens de Centaurea L. (Asteraceae, Cardueae). Trois taxons endémiques iraquiens de Centaurea L. (Asteraceae) sont lectotypifiés, à savoir Centaurea foveolata Blakelock, C. fusiformis Blakelock, et C. longipedunculata Sch. Bip. ex Boiss.
{"title":"Typification of three Iraqi endemic taxa of Centaurea L. (Asteraceae, Cardueae)","authors":"Kazem Negaresh","doi":"10.5252/adansonia2020v42a15","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a15","url":null,"abstract":"ABSTRACT Three Iraqi endemic taxa of Centaurea L. (Asteraceae) are typified, namely Centaurea foveolata Blakelock, C. fusiformis Blakelock, and C. longipedunculata Sch. Bip. ex Boiss. RÉSUMÉ Typification de trois taxons endémiques iraquiens de Centaurea L. (Asteraceae, Cardueae). Trois taxons endémiques iraquiens de Centaurea L. (Asteraceae) sont lectotypifiés, à savoir Centaurea foveolata Blakelock, C. fusiformis Blakelock, et C. longipedunculata Sch. Bip. ex Boiss.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84486344","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}
Pub Date : 2020-10-01DOI: 10.5252/adansonia2020v42a14
F. Verloove, J. Browning, A. Mesterházy
ABSTRACT Cyperus permacer sensu C.B. Clarke is not the same as C. permacer sensu Hooper in Flora of West Tropical Africa. A thorough study of herbarium specimens proved the latter to be a mere variety of C. tenuiculmis Boeckeler. The taxonomic identity of C. permacer itself is also unclear, the holotype being a poor specimen. It possibly is only a depauperate form of C. dilatatus Schumach. RÉSUMÉ Sur l'identité de Cyperus permacer (Cyperaceae) en Afrique de l'Ouest. Cyperus permacer sensu C.B. Clarke n'est pas le même que C. permacer sensu Hooper in Flora of West Tropical Africa. Une étude approfondie des spécimens d'herbier a démontré que ce dernier n'est qu'une simple variété de C. tenuiculmis Boeckeler. L'identité taxonomique de C. permacer lui-même n'est pas claire non plus, l'holotype étant un spécimen de mauvaise qualité. Ce n'est peut-être qu'une forme peu développée de C. dilatatus Schumach.
= =地理= =根据美国人口普查，该地区的总面积为，其中土地和(2.641)水。= =地理= =根据美国人口普查，这个县的土地面积为。= =地理= =根据美国人口普查，该地区的总面积为，其中土地和(2.641平方公里)水。= =地理= =根据美国人口普查，cdp的总面积为，其中土地和(0.964平方公里)水。莎草科(莎草科)在西非的身份总结。莎草permacer sensu C.B. Clarke与西非热带植物区系中的C. permacer sensu Hooper不同。对植物标本室标本的详细研究表明，植物标本室只是一种简单的植物品种。C. permacer本身的分类学身份也不清楚，因为全型是一个劣质标本。它可能只是舒马赫C. dilatatus的一种未发育的形式。
{"title":"On the identity of Cyperus permacer (Cyperaceae) in West Africa","authors":"F. Verloove, J. Browning, A. Mesterházy","doi":"10.5252/adansonia2020v42a14","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a14","url":null,"abstract":"ABSTRACT Cyperus permacer sensu C.B. Clarke is not the same as C. permacer sensu Hooper in Flora of West Tropical Africa. A thorough study of herbarium specimens proved the latter to be a mere variety of C. tenuiculmis Boeckeler. The taxonomic identity of C. permacer itself is also unclear, the holotype being a poor specimen. It possibly is only a depauperate form of C. dilatatus Schumach. RÉSUMÉ Sur l'identité de Cyperus permacer (Cyperaceae) en Afrique de l'Ouest. Cyperus permacer sensu C.B. Clarke n'est pas le même que C. permacer sensu Hooper in Flora of West Tropical Africa. Une étude approfondie des spécimens d'herbier a démontré que ce dernier n'est qu'une simple variété de C. tenuiculmis Boeckeler. L'identité taxonomique de C. permacer lui-même n'est pas claire non plus, l'holotype étant un spécimen de mauvaise qualité. Ce n'est peut-être qu'une forme peu développée de C. dilatatus Schumach.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90972436","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}
Pub Date : 2020-09-21DOI: 10.5252/adansonia2020v42a13
A. Hernández-Ramírez
ABSTRACT Inflorescence type and design determine the position of reproductive meristems and sequence of flowers opening. I examined the gender expression over two entire flowering seasons in Sedum praealtum A. DC. (Crassulaceae) in Central Veracruz, Mexico. Specifically, I studied the floral longevity, sexual-phase duration, flower opening within an inflorescence and sex ratio in the species. I observed that the 8-days flower initiated in male-phase and then switched to female-phase. An extended time of pollen presentation by gradual anthers dehiscence caused an incomplete protandry in the species. The basal-positioned floral buds reached anthesis sooner than the distal-positioned floral buds, resembling an acropetal flowering sequence. Inflorescences production ceased in the middle of the flowering season, whereas flower opening remained constant over reproductive season of the species. The opening of flowers in successive cohorts linked to changes in the flower sexual-phase phenology caused an initial sex expression toward maleness and a balanced sexual expression from the peak to the end of reproductive season in the population sampled. This study highlights the important influence that variations in onset and duration of sexual-phase of flowers can have on sex expression in flowering plants.
花序类型和花序设计决定了生殖分生组织的位置和开花顺序。我研究了Sedum praealtum A. DC在整个两个开花季节的性别表达。(天竺葵科)产于墨西哥韦拉克鲁斯中部。具体来说，我研究了该物种的花寿命、性期持续时间、花序内开花和性别比例。我观察到8天花期开始于雄花期，然后转入雌花期。由于花药逐渐开裂，花粉呈现时间延长，导致本种不完全原雄蕊。位于基部的花蕾比位于上部的花蕾早开花，类似于顶尖的开花序列。花期中期花序停止生长，而在整个繁殖季节开花保持不变。在连续的群体中，花的开放与花的性相物候变化有关，导致了种群中最初的性别表达向雄性倾斜，并且从繁殖季节的高峰期到繁殖季节结束，性别表达趋于平衡。本研究强调了花性期的开始和持续时间的变化对开花植物性别表达的重要影响。
{"title":"Gender expression in Sedum praealtum A. DC. (Crassulaceae) in Central Veracruz, Mexico","authors":"A. Hernández-Ramírez","doi":"10.5252/adansonia2020v42a13","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a13","url":null,"abstract":"ABSTRACT Inflorescence type and design determine the position of reproductive meristems and sequence of flowers opening. I examined the gender expression over two entire flowering seasons in Sedum praealtum A. DC. (Crassulaceae) in Central Veracruz, Mexico. Specifically, I studied the floral longevity, sexual-phase duration, flower opening within an inflorescence and sex ratio in the species. I observed that the 8-days flower initiated in male-phase and then switched to female-phase. An extended time of pollen presentation by gradual anthers dehiscence caused an incomplete protandry in the species. The basal-positioned floral buds reached anthesis sooner than the distal-positioned floral buds, resembling an acropetal flowering sequence. Inflorescences production ceased in the middle of the flowering season, whereas flower opening remained constant over reproductive season of the species. The opening of flowers in successive cohorts linked to changes in the flower sexual-phase phenology caused an initial sex expression toward maleness and a balanced sexual expression from the peak to the end of reproductive season in the population sampled. This study highlights the important influence that variations in onset and duration of sexual-phase of flowers can have on sex expression in flowering plants.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86347126","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}
Pub Date : 2020-09-14DOI: 10.5252/adansonia2020v42a12
L. Katinas, Marcelo P. Hernández, G. Sancho
ABSTRACT Osmophores are engaged in scent production and differ from other secretory structures by their product, site, duration, and anatomical structure. Whereas osmophores have been well-documented in flowers of several families, they are barely mentioned in the Asteraceae. The aims of this study are to: 1) determine the occurrence of osmophores in corollas of 39 species of the tribe Onoserideae and the only species of Famatinantheae with histochemical methods; and 2) analyze the morphology and structure of osmophores in these groups. Histochemical and histological techniques revealed osmophores in the marginal and in the central corollas of Famatinanthus Ariza & S.E. Freire and Plazia Ruiz & Pav. at the apex and margin of the corolla lobes, and at the sinuses. Osmophores were confirmed following positive staining reactions for TIOFH and TIOFH3 (Neutral Red, Oil Red O, and Iodine-Potassium-Iodide); the samples reacted negatively for Benedict's test for detecting reducing sugars. The osmophores found in this study are constituted uniquely by a papillose or non-papillose epidermis, or they extend into the mesophyll forming scent glands. In both cases, they are associated to stomata and starch grains. The corollas of the other species of Onoserideae did not react positively for osmophores.
{"title":"Structural and histochemical characterization of the osmophores in corollas of Asteraceae (tribes Onoserideae and Famatinantheae)","authors":"L. Katinas, Marcelo P. Hernández, G. Sancho","doi":"10.5252/adansonia2020v42a12","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a12","url":null,"abstract":"ABSTRACT Osmophores are engaged in scent production and differ from other secretory structures by their product, site, duration, and anatomical structure. Whereas osmophores have been well-documented in flowers of several families, they are barely mentioned in the Asteraceae. The aims of this study are to: 1) determine the occurrence of osmophores in corollas of 39 species of the tribe Onoserideae and the only species of Famatinantheae with histochemical methods; and 2) analyze the morphology and structure of osmophores in these groups. Histochemical and histological techniques revealed osmophores in the marginal and in the central corollas of Famatinanthus Ariza & S.E. Freire and Plazia Ruiz & Pav. at the apex and margin of the corolla lobes, and at the sinuses. Osmophores were confirmed following positive staining reactions for TIOFH and TIOFH3 (Neutral Red, Oil Red O, and Iodine-Potassium-Iodide); the samples reacted negatively for Benedict's test for detecting reducing sugars. The osmophores found in this study are constituted uniquely by a papillose or non-papillose epidermis, or they extend into the mesophyll forming scent glands. In both cases, they are associated to stomata and starch grains. The corollas of the other species of Onoserideae did not react positively for osmophores.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72504597","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}
Pub Date : 2020-08-31DOI: 10.5252/adansonia2020v42a11
Ananda Kumar, O. Maurya
ABSTRACT Two accepted names in Nepeta L. (Lamiaceae), namely N. hindostana (B.Heyne ex. Roth) Haines and N. hindostana var. woodrowii (Cooke) Santapau, in addition to Glechoma erecta Buch.-Ham. ex Roxb., synonym of N. hindostana, are typified. Nepeta ruderalis Buch.-Ham. ex Benth. and G. indica Spreng. are treated here as illegitimate superfluous names for G. hindostana B.Heyne ex. Roth.
{"title":"Typification of two accepted names and one synonym in the genus Nepeta L.","authors":"Ananda Kumar, O. Maurya","doi":"10.5252/adansonia2020v42a11","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a11","url":null,"abstract":"ABSTRACT Two accepted names in Nepeta L. (Lamiaceae), namely N. hindostana (B.Heyne ex. Roth) Haines and N. hindostana var. woodrowii (Cooke) Santapau, in addition to Glechoma erecta Buch.-Ham. ex Roxb., synonym of N. hindostana, are typified. Nepeta ruderalis Buch.-Ham. ex Benth. and G. indica Spreng. are treated here as illegitimate superfluous names for G. hindostana B.Heyne ex. Roth.","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78555849","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}
Pub Date : 2020-07-01DOI: 10.5252/adansonia2020v42a10
G. Schatz, P. Lowry
ABSTRACT A synoptic revision of the Squamosa group of Diospyros L. (Ebenaceae) in Madagascar and the Comoro Islands is presented in which nine species are recognized, including six new species that are described and illustrated (Diospyros antakaranae Capuron ex G.E. Schatz & Lowry, sp. nov., Diospyros betamponensis G.E. Schatz & Lowry, sp. nov., Diospyros callmanderi G.E. Schatz & Lowry, sp. nov., Diospyros darainensis G.E. Schatz & Lowry, sp. nov., Diospyros phillipsonii G.E. Schatz & Lowry, sp. nov., and Diospyros sennenii G.E. Schatz & Lowry, sp. nov.). A key to the species is provided, along with an IUCN risk of extinction assessment for each species. Five species are assessed as Endangered (D. betamponensis G.E. Schatz & Lowry, sp. nov., D. callmanderi G.E. Schatz & Lowry, sp. nov., D. darainensis G.E. Schatz & Lowry, sp. nov., D. phillipsonii G.E. Schatz & Lowry, sp. nov., and D. tetraceros H. Perrier), one as Vulnerable (D. antakaranae Capuron ex G.E. Schatz & Lowry, sp. nov.), one as Near Threatened (D. comorensis Hiern), and two as Least Concern (D. sennenii G.E. Schatz & Lowry, sp. nov. and D. squamosa Bojer ex A. DC.).
{"title":"Taxonomic studies of Diospyros L. (Ebenaceae) from the Malagasy region. IV. Synoptic revision of the Squamosa group in Madagascar and the Comoro Islands","authors":"G. Schatz, P. Lowry","doi":"10.5252/adansonia2020v42a10","DOIUrl":"https://doi.org/10.5252/adansonia2020v42a10","url":null,"abstract":"ABSTRACT A synoptic revision of the Squamosa group of Diospyros L. (Ebenaceae) in Madagascar and the Comoro Islands is presented in which nine species are recognized, including six new species that are described and illustrated (Diospyros antakaranae Capuron ex G.E. Schatz & Lowry, sp. nov., Diospyros betamponensis G.E. Schatz & Lowry, sp. nov., Diospyros callmanderi G.E. Schatz & Lowry, sp. nov., Diospyros darainensis G.E. Schatz & Lowry, sp. nov., Diospyros phillipsonii G.E. Schatz & Lowry, sp. nov., and Diospyros sennenii G.E. Schatz & Lowry, sp. nov.). A key to the species is provided, along with an IUCN risk of extinction assessment for each species. Five species are assessed as Endangered (D. betamponensis G.E. Schatz & Lowry, sp. nov., D. callmanderi G.E. Schatz & Lowry, sp. nov., D. darainensis G.E. Schatz & Lowry, sp. nov., D. phillipsonii G.E. Schatz & Lowry, sp. nov., and D. tetraceros H. Perrier), one as Vulnerable (D. antakaranae Capuron ex G.E. Schatz & Lowry, sp. nov.), one as Near Threatened (D. comorensis Hiern), and two as Least Concern (D. sennenii G.E. Schatz & Lowry, sp. nov. and D. squamosa Bojer ex A. DC.).","PeriodicalId":55556,"journal":{"name":"Adansonia","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83108144","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}
Pub Date : 2020-06-22DOI: 10.5252/adansonia2020v42a9
M. Pignal, Christian Laudereau, Pierre-Louis Laudereau
RÉSUMÉ Une nouvelle espèce de Nouvelle-Calédonie, Dendrobium veillonii M. Pignal, sp. nov. est décrite et illustrée. Les caractères morphologiques distinguant le nouveau taxon des espèces apparentées, D. pectinatum Finet, D. crassicaule Schltr. et D. cleistogamum Schltr., sont présentés. Son statut UICN de conservation est proposé. Une clé d'identification est donnée pour la section Kinetochilus Schltr. Les lectotypes sont désignés pour D. cleistogamum, D. crassicaule et D. pectinatum. L'architecture de la section Kinetochilus Schltr. est analysée sur la base de D. veillonii M. Pignal, sp. nov.
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