Pub Date : 2024-05-02DOI: 10.11646/phytotaxa.646.2.7
D. N. DA SILVA, Maria José Reis DA ROCHA, E. Guimarães, Paulo José Fernandes Guimaraes
During the preparation of the taxonomic review of Comolia, some taxonomic novelties were found. Here we describe Comolia paraensis, a new species endemic to the Brazilian state of Pará, preliminary categorized as Endangered. This species occurs in the campinas around Oriximiná and in the stony Amazonian savannas of Monte Alegre and Óbidos. Comolia paraensis is morphologically similar to C. kuhlmannii and C. veronicifolia, two taxonomic entities that here were considered distinct from C. villosa. Comolia paraensis is illustrated, compared with similar species, and notes on its geographic distribution and preliminary conservation status are provided. We also discuss the succulence found in the branches of the population from Monte Alegre, something unprecedented within Marcetieae, but commonly reported in Pyramieae and Sonerileae.
在编写 Comolia 分类学综述的过程中，我们发现了一些分类学上的新发现。在此，我们描述了巴西帕拉州特有的新物种 Comolia paraensis，该物种初步被列为濒危物种。该物种分布于奥里克西米纳（Oriximiná）周围的坎皮纳斯（campinas）以及阿雷格里山（Monte Alegre）和奥比多斯（Óbidos）的亚马逊石质稀树草原。Comolia paraensis 在形态上与 C. kuhlmannii 和 C. veronicifolia 相似，这两个分类实体在这里被认为与 C. villosa 不同。我们绘制了 Comolia paraensis 的插图，并将其与同类物种进行了比较，还介绍了它的地理分布和初步保护状况。我们还讨论了在来自阿雷格里山（Monte Alegre）的种群中发现的多汁现象，这在Marcetieae中是前所未有的，但在Pyramieae和Sonerileae中却很常见。
{"title":"Comolia paraensis (Melastomataceae), a striking new species of Marcetieae endemic to Pará, Brazil","authors":"D. N. DA SILVA, Maria José Reis DA ROCHA, E. Guimarães, Paulo José Fernandes Guimaraes","doi":"10.11646/phytotaxa.646.2.7","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.7","url":null,"abstract":"During the preparation of the taxonomic review of Comolia, some taxonomic novelties were found. Here we describe Comolia paraensis, a new species endemic to the Brazilian state of Pará, preliminary categorized as Endangered. This species occurs in the campinas around Oriximiná and in the stony Amazonian savannas of Monte Alegre and Óbidos. Comolia paraensis is morphologically similar to C. kuhlmannii and C. veronicifolia, two taxonomic entities that here were considered distinct from C. villosa. Comolia paraensis is illustrated, compared with similar species, and notes on its geographic distribution and preliminary conservation status are provided. We also discuss the succulence found in the branches of the population from Monte Alegre, something unprecedented within Marcetieae, but commonly reported in Pyramieae and Sonerileae.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141022222","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}
We describe here a rare, critically endangered new species of the genus Cheniella from Guangdong province of southern China. Cheniella tsoongii is morphologically similar to C. corymbosa, and can be distinguished by having a combination of deeply-bilobed hairy leaves, white flowers, shorter hypanthia, yellow anthers, and densely ferruginous-tomentose inflorescence rachides, pedicles and hypanthia. We suggest assessing the conservation status of the species as Critically Endangered (CR) as it possesses an extremely high risk of extinction based on the rapid population declines during the last century and, only no more than 10 individuals remain in an environmentally unprotected area now. Urgent conservation studies and actions are necessary to prevent the extinction of this species.
{"title":"Cheniella tsoongii (Leguminosae: Cercidoideae), a rare, critically endangered new species from southern China","authors":"Xia Peng, K. Jiang, TIAN-SONG Fang, QIAO-YUN Gu, SHI-RAN Gu, Zhi Xie, Lei Duan, SHI-JIN Li, Xiang-Ping Wang, Miao-Miao Shi, TIE-YAO Tu, Dian-xiang Zhang","doi":"10.11646/phytotaxa.646.2.8","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.8","url":null,"abstract":"We describe here a rare, critically endangered new species of the genus Cheniella from Guangdong province of southern China. Cheniella tsoongii is morphologically similar to C. corymbosa, and can be distinguished by having a combination of deeply-bilobed hairy leaves, white flowers, shorter hypanthia, yellow anthers, and densely ferruginous-tomentose inflorescence rachides, pedicles and hypanthia. We suggest assessing the conservation status of the species as Critically Endangered (CR) as it possesses an extremely high risk of extinction based on the rapid population declines during the last century and, only no more than 10 individuals remain in an environmentally unprotected area now. Urgent conservation studies and actions are necessary to prevent the extinction of this species.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141018992","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.1
M. Phonemany, Phonguen Sysouphanthong, Naritsada Thongklang
Six new species and two new records of Crepidotus are described from Thailand. Macroscopic and microscopic descriptions with photoplates, as well as a multigene phylogeny, are provided. Crepidotus chiangraiensis sp. nov. is recognized as densely velutinous with white hairs longer near the point of attachment, not striate margin, and not hygrophanous. Crepidotus- flavocarpus sp. nov. is recognized by yellow to yellowish pileus basidiomata, margin discolorous paler yellow, densely velutinous with white hairs near the point of attachment, smooth globose basidiospores, and inverse hymenophoral trama. Crepidotus thailandicus sp. nov. is recognized by a tomentose surface with white hair when primordial to early stages and then disappearing with age when mature present long translucent-striate reward to the point of attachment becoming fade away at central. Crepidotus roseocarpus sp. nov. is recognized by large basidiomata, pileus, lamellae, and context are pastel pink, concolorous darker pink at the margin, hymenophoral trama convergent, with cylindrical terminal elements. Crepidotus-ungulatus sp. nov. is recognized by ungulate basidiomata, brownish orange near the point of attachment, the basidiomata color changed to light brown in three hours, and the margin is concolorous to the surface of the pileus. Crepidotus viscidus sp. nov. is recognized by white semicircular pileus, translucent-striate with gray to dark grey margin, lamellae pale orange to orange-white, glutinous context, smooth basidiospore and hymenophoral trama present regular form. Crepidotus lateralipes and C. striatus are reported as new records to Thailand.
{"title":"Additions to Crepidotus species (Basidiomycota): Six new species and two new records from Thailand","authors":"M. Phonemany, Phonguen Sysouphanthong, Naritsada Thongklang","doi":"10.11646/phytotaxa.646.2.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.1","url":null,"abstract":"Six new species and two new records of Crepidotus are described from Thailand. Macroscopic and microscopic descriptions with photoplates, as well as a multigene phylogeny, are provided. Crepidotus chiangraiensis sp. nov. is recognized as densely velutinous with white hairs longer near the point of attachment, not striate margin, and not hygrophanous. Crepidotus- flavocarpus sp. nov. is recognized by yellow to yellowish pileus basidiomata, margin discolorous paler yellow, densely velutinous with white hairs near the point of attachment, smooth globose basidiospores, and inverse hymenophoral trama. Crepidotus thailandicus sp. nov. is recognized by a tomentose surface with white hair when primordial to early stages and then disappearing with age when mature present long translucent-striate reward to the point of attachment becoming fade away at central. Crepidotus roseocarpus sp. nov. is recognized by large basidiomata, pileus, lamellae, and context are pastel pink, concolorous darker pink at the margin, hymenophoral trama convergent, with cylindrical terminal elements. Crepidotus-ungulatus sp. nov. is recognized by ungulate basidiomata, brownish orange near the point of attachment, the basidiomata color changed to light brown in three hours, and the margin is concolorous to the surface of the pileus. Crepidotus viscidus sp. nov. is recognized by white semicircular pileus, translucent-striate with gray to dark grey margin, lamellae pale orange to orange-white, glutinous context, smooth basidiospore and hymenophoral trama present regular form. Crepidotus lateralipes and C. striatus are reported as new records to Thailand.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141022462","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.9
Dongliang Lin, Liyue Zhang, Chao Ye, Jianwu Li, Xiaohua Jin
Two new orchid species, Platanthera linzhiensis, P. deergongensis, are described and illustrated from Motuo, Xizang, China. P. linzhiensis is closely related to P. uniformis, but differs from it by lip yellowish green, spur yellow, nearly as long as ovary, connective obtuse-truncate, not protruding from anther, column lateral appendages ovate to oblong, slightly shorter than the anther. P. deergongensis is morphologically similar to P. contigua, but is distinguished from it by having white lip, obtuse-truncate connective and ovate to oblong column lateral appendages. Molecular phylogenetic analysis based on six markers (nrITS, psaB, matK, psbA-trnH, rbcL, trnL-F) revealed that P. linzhiensis and P. deergongensis formed a clade with high support, and are close to P. superantha.
本报告描述并图解了产自中国西藏墨脱的两个兰花新种：Platanthera linzhiensis 和 P. deergongensis。P. linzhiensis与P. uniformis亲缘关系密切，但唇瓣黄绿色，距黄色，几乎与子房等长，药隔钝截形，不突出于花药，柱状侧附属物卵形至长圆形，稍短于花药。Degongensis 在形态上与 P. contigua 相似，但有白色的唇、钝截形的药隔和卵形至长圆形的柱状侧附属物，因此与 P. contigua 有所区别。基于六个标记（nrITS、psaB、matK、psbA-trnH、rbcL、trnL-F）的分子系统学分析表明，P. linzhiensis 和 P. deergongensis 形成了一个高支持的支系，与 P. superantha 接近。
{"title":"Two new species of Platanthera (Orchidaceae, Orchidoideae) from Xizang, China","authors":"Dongliang Lin, Liyue Zhang, Chao Ye, Jianwu Li, Xiaohua Jin","doi":"10.11646/phytotaxa.646.2.9","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.9","url":null,"abstract":"Two new orchid species, Platanthera linzhiensis, P. deergongensis, are described and illustrated from Motuo, Xizang, China. P. linzhiensis is closely related to P. uniformis, but differs from it by lip yellowish green, spur yellow, nearly as long as ovary, connective obtuse-truncate, not protruding from anther, column lateral appendages ovate to oblong, slightly shorter than the anther. P. deergongensis is morphologically similar to P. contigua, but is distinguished from it by having white lip, obtuse-truncate connective and ovate to oblong column lateral appendages. Molecular phylogenetic analysis based on six markers (nrITS, psaB, matK, psbA-trnH, rbcL, trnL-F) revealed that P. linzhiensis and P. deergongensis formed a clade with high support, and are close to P. superantha.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141017792","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.3
H. Akhani, Hussaini Abdollahi, O. Ürker, Maryam Malekmohammadi
Asparagus lycaonicus P.H.Davis (Asparagaceae), a highly interesting halophytic species was found in two disjunct populations of ca. 1550 km aerial distance, one in Central Anatolia (Bolluk Salt Lake) and the other in Central Iran (Meyghan Salt Lake). Using one nuclear phytochrome C (PHYC) and two plastid regions (trnH-psbA and trnD-T) the phylogenetic position of this Irano-Turkish endemic species was studied. In contrast to low resolution of plastid sequences, the PHYC provides good resolution for understanding species level phylogeny in SW Asian Asparagus. Molecular data confirms a conspecific position of the two disjunct localities in Turkey and Iran and their position in a clade containing cultivated Asparagus and many other Irano-Turkish species. Asparagus lycaonicus is extremely rare in Iran and since its discovery in 1986, it has never been rediscovered in Iran, even in its initial collection site. Intensive land use activities, water level changes and the passage of Arak wastewater into the Meyghan Salt Lake area has drastically changed the habitat of A. lycaonicus and might have caused its extinction. Since its discovery in 1960 in Turkey, the species is only found in a small area around and inside a sodic extraction factory around Bolluk Lake. Considering the critical condition of its populations in Iran and Turkey, we evaluate the conservation status of Asparagus lycaonicus as Critically Endangered (CR). In conclusion we urge the authorities to implement in situ measures for conservation and restoration of the habitats of A. lycaonicus, a halophytic species related to cultivated Asparagus. The taxonomic status of some newly described Asparagus from Iran is discussed with reducing A. touranensis Hamdi & Assadi to synonym of A. griffithii Baker., A. khorasanensis Hamdi & Assadi to synonym of A. breslerianus Schult. & Schult.f, and Asparagus bojnurdensis Hamdi & Assadi to synonym of A. verticillatus L.
天门冬（Asparagus lycaonicus P.H.Davis，天门冬科）是一种非常有趣的卤叶植物，在两个相距约 1550 千米的不相连的种群中被发现，一个种群位于安纳托利亚中部（博鲁克盐湖），另一个种群位于伊朗中部（梅汉盐湖）。利用一个核植物色素 C（PHYC）和两个质体区域（trnH-psbA 和 trnD-T）研究了这一伊朗-土耳其特有物种的系统发育位置。与质粒序列的低分辨率相比，PHYC 为了解亚洲西南部芦笋的物种系统发育提供了良好的分辨率。分子数据证实了土耳其和伊朗两个不相连的地方芦笋的同种地位，以及它们在一个包含栽培芦笋和许多其他伊朗-土耳其物种的支系中的地位。lycaonicus 芦笋在伊朗极为罕见，自 1986 年被发现以来，从未在伊朗再次被发现，即使在其最初的采集地也是如此。密集的土地使用活动、水位变化以及阿拉克废水进入梅甘盐湖地区，极大地改变了芦笋的栖息地，可能导致其灭绝。自 1960 年在土耳其被发现以来，该物种仅在博卢克湖附近的一个钠盐提取工厂周围和内部的一小片区域被发现。考虑到其在伊朗和土耳其的种群处于危急状态，我们将芦笋的保护级别定为极度濒危（CR）。最后，我们敦促有关当局采取原地保护和恢复芦笋栖息地的措施，芦笋是一种与栽培芦笋相关的盐生物种。讨论了伊朗新描述的一些芦笋的分类地位，将 A. touranensis Hamdi & Assadi 降为 A. griffithii Baker.的异名，将 A. khorasanensis Hamdi & Assadi 降为 A. breslerianus Schult.
{"title":"Molecular phylogenetic studies on Asparagus (Asparagaceae) revealed the position of the highly endangered Irano-Turkish halophytic species A. lycaonicus P.H.Davis related to A. officinalis L.","authors":"H. Akhani, Hussaini Abdollahi, O. Ürker, Maryam Malekmohammadi","doi":"10.11646/phytotaxa.646.2.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.3","url":null,"abstract":"Asparagus lycaonicus P.H.Davis (Asparagaceae), a highly interesting halophytic species was found in two disjunct populations of ca. 1550 km aerial distance, one in Central Anatolia (Bolluk Salt Lake) and the other in Central Iran (Meyghan Salt Lake). Using one nuclear phytochrome C (PHYC) and two plastid regions (trnH-psbA and trnD-T) the phylogenetic position of this Irano-Turkish endemic species was studied. In contrast to low resolution of plastid sequences, the PHYC provides good resolution for understanding species level phylogeny in SW Asian Asparagus. Molecular data confirms a conspecific position of the two disjunct localities in Turkey and Iran and their position in a clade containing cultivated Asparagus and many other Irano-Turkish species. Asparagus lycaonicus is extremely rare in Iran and since its discovery in 1986, it has never been rediscovered in Iran, even in its initial collection site. Intensive land use activities, water level changes and the passage of Arak wastewater into the Meyghan Salt Lake area has drastically changed the habitat of A. lycaonicus and might have caused its extinction. Since its discovery in 1960 in Turkey, the species is only found in a small area around and inside a sodic extraction factory around Bolluk Lake. Considering the critical condition of its populations in Iran and Turkey, we evaluate the conservation status of Asparagus lycaonicus as Critically Endangered (CR). In conclusion we urge the authorities to implement in situ measures for conservation and restoration of the habitats of A. lycaonicus, a halophytic species related to cultivated Asparagus. The taxonomic status of some newly described Asparagus from Iran is discussed with reducing A. touranensis Hamdi & Assadi to synonym of A. griffithii Baker., A. khorasanensis Hamdi & Assadi to synonym of A. breslerianus Schult. & Schult.f, and Asparagus bojnurdensis Hamdi & Assadi to synonym of A. verticillatus L.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141021484","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.4
M. D. da Silva, R. C. Sodré, A. A. Alonso, Igor Soares DOS SANTOS
Taxonomic studies on the genus Croton in the Midwest region of Brazil enabled the analysis of about 700 collections from all over the country. Three of these collections were identified as a new species, Croton piriquetifolius, which is described and illustrated here. We also give a preliminary evaluation of its conservation status, provide data on flowering and fruiting seasons, geographic distribution environmental preferences, as well as its systematic position. The new species is compared macro- and micromorphologically with C. adamantinus, C. glandulosus and C. eremophilus, with which it resembles or has been confused in herbaria. Morphological (e.g., presence, shape, and location of the acropetiolar nectaries, presence, and distribution of glands on stipules, presence, and size of pedicel on pistillate flower, integrity of styles, type, and location of trichomes) and anatomical (e.g., disposition of the stomata, contour of petiole and midrib, organization of vascular bundles, type of mesophyll, and types of trichomes) characters serve to differentiate the species studied.
对巴西中西部地区巴豆属植物的分类研究分析了来自全国各地的约 700 个采集样本。在这些采集物中，有三个被鉴定为新种，即 Croton piriquetifolius，本文对其进行了描述和图示。我们还对其保护状况进行了初步评估，提供了关于开花和结果季节、地理分布环境偏好以及其系统位置的数据。在宏观和微观形态上，我们将该新物种与 C. adamantinus、C. glandulosus 和 C. eremophilus 进行了比较。形态（如顶端蜜腺的存在、形状和位置，托叶上腺体的存在和分布，雌花花梗的存在和大小，花柱的完整性，毛状体的类型和位置）和解剖（如气孔的分布，叶柄和中脉的轮廓，维管束的组织，中叶的类型和毛状体的类型）特征有助于区分所研究的物种。
{"title":"A new species of Croton sect. Geiseleria (Euphorbiaceae) from Brazil, supported by macro- and micromorphological data","authors":"M. D. da Silva, R. C. Sodré, A. A. Alonso, Igor Soares DOS SANTOS","doi":"10.11646/phytotaxa.646.2.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.4","url":null,"abstract":"Taxonomic studies on the genus Croton in the Midwest region of Brazil enabled the analysis of about 700 collections from all over the country. Three of these collections were identified as a new species, Croton piriquetifolius, which is described and illustrated here. We also give a preliminary evaluation of its conservation status, provide data on flowering and fruiting seasons, geographic distribution environmental preferences, as well as its systematic position. The new species is compared macro- and micromorphologically with C. adamantinus, C. glandulosus and C. eremophilus, with which it resembles or has been confused in herbaria. Morphological (e.g., presence, shape, and location of the acropetiolar nectaries, presence, and distribution of glands on stipules, presence, and size of pedicel on pistillate flower, integrity of styles, type, and location of trichomes) and anatomical (e.g., disposition of the stomata, contour of petiole and midrib, organization of vascular bundles, type of mesophyll, and types of trichomes) characters serve to differentiate the species studied.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141021465","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.2
Dongliang Lin, Jianwu Li, Chao Ye, Haixia Wen, Xiaohua Jin
A new species of orchid, Platanthera medogensis, was described and illustrated from Xizang Autonomous Region, China. P. medogensis is close to P. bakeriana and P. chiloglossa, but is readily distinguished from the latter by having ovate-lanceolate lip concave at base with two calli, linear visidium, two stigmas below the rostellum. Molecular phylogenetic analysis based on five markers (nrITS, matK, psbA-trnH, rbcL, trnL-F) revealed that P. medogensis is sister with P. exelliana by full support.
中国西藏自治区描述了一个兰花新种--Platanthera medogensis，并绘制了插图。P. medogensis与P. bakeriana和P. chiloglossa很接近，但很容易与后者区分开来，因为后者的唇瓣卵状披针形，基部凹陷，有两个胼胝体，粘膜线形，两个柱头位于子房下。基于五个标记（nrITS、matK、psbA-trnH、rbcL、trnL-F）的分子系统进化分析表明，P. medogensis 与 P. exelliana 是姊妹种，支持率完全一致。
{"title":"A new species of Platanthera (Orchidaceae, Orchideae) from southeast of Xizang, China","authors":"Dongliang Lin, Jianwu Li, Chao Ye, Haixia Wen, Xiaohua Jin","doi":"10.11646/phytotaxa.646.2.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.2","url":null,"abstract":"A new species of orchid, Platanthera medogensis, was described and illustrated from Xizang Autonomous Region, China. P. medogensis is close to P. bakeriana and P. chiloglossa, but is readily distinguished from the latter by having ovate-lanceolate lip concave at base with two calli, linear visidium, two stigmas below the rostellum. Molecular phylogenetic analysis based on five markers (nrITS, matK, psbA-trnH, rbcL, trnL-F) revealed that P. medogensis is sister with P. exelliana by full support.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141022605","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 : 2024-05-02DOI: 10.11646/phytotaxa.646.2.6
L. Gianguzzi, E. Di Gristina, Giulio Barone, G. Domina
A new population of Centaurea, belonging to the C. busambarensis complex, was recently discovered in the Nebrodi Mountain (northeastern Sicily). Individuals of this population show some peculiar characters differentiating it from the nine currently recognized species of the C. busambarensis complex in Sicily. To validate this differentiation, we conducted a statistical analysis on the morphological characters. The results indicated that this new population is sufficiently distinct to deserve recognition as a separate species. In this context, we provide a detailed description and illustrations of the newly identified species, which we name C. haluntina. This new species is a punctiform endemic to the lower Nebrodi Mountains.
最近在内布罗迪山（西西里岛东北部）发现了一个新的半枝莲种群，属于半枝莲复合种。该种群的个体表现出一些奇特的特征，使其有别于西西里岛目前公认的九个 C. busambarensis 复合物物种。为了验证这种区分，我们对形态特征进行了统计分析。结果表明，这个新种群具有足够的独特性，值得被认定为一个单独的物种。在此背景下，我们提供了新鉴定物种的详细描述和图解，并将其命名为 C. haluntina。这个新物种是内布罗迪山脉下部特有的一种点状动物。
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Pub Date : 2024-05-02DOI: 10.11646/phytotaxa.646.2.5
Yee Mon Htet, W. A. E. Yasanthika, Vedprakash G. Hurdeal, A. R. Gomes de Farias
Absidia is ubiquitous and plays a critical function in biotechnology and medicine. It is characterized by single sporangiophores, in pairs or groups on stolons, bearing apophysate and pyriform sporangia with a deliquescent wall. This study isolated and proposed Absidia thailandica sp. nov. as an addition to Mucorales from Thailand. Phylogenetic analyses of IITS + LSU rDNA data showed that this species is related to A. ovalispora and A. soli. However, it differs from A. ovalispora by the absence of swollen parts on the sporangiophores and shape of rhizoids and can be distinguished from A. soli by the shape of rhizoids, size of sporangiospores and shape and size of columellae. This study expands the diversity of soil fungi in Thailand.
Absidia 无处不在，在生物技术和医药领域发挥着重要作用。它的特点是单孢子囊，成对或成群地生在匍匐茎上，带有无柄和梨形孢子囊，孢子囊壁潮解。本研究分离并提出 Absidia thailandica sp.IITS + LSU rDNA 数据的系统进化分析表明，该物种与 A. ovalispora 和 A. soli 相关。然而，它与 A. ovalispora 的区别在于孢子囊上没有肿胀部分以及根状茎的形状，并且可以通过根状茎的形状、孢子囊的大小以及菌胶团的形状和大小与 A. soli 区分开来。这项研究扩大了泰国土壤真菌的多样性。
{"title":"Absidia thailandica sp. nov., an addition to the diversity of soil fungi from Thailand","authors":"Yee Mon Htet, W. A. E. Yasanthika, Vedprakash G. Hurdeal, A. R. Gomes de Farias","doi":"10.11646/phytotaxa.646.2.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.2.5","url":null,"abstract":"Absidia is ubiquitous and plays a critical function in biotechnology and medicine. It is characterized by single sporangiophores, in pairs or groups on stolons, bearing apophysate and pyriform sporangia with a deliquescent wall. This study isolated and proposed Absidia thailandica sp. nov. as an addition to Mucorales from Thailand. Phylogenetic analyses of IITS + LSU rDNA data showed that this species is related to A. ovalispora and A. soli. However, it differs from A. ovalispora by the absence of swollen parts on the sporangiophores and shape of rhizoids and can be distinguished from A. soli by the shape of rhizoids, size of sporangiospores and shape and size of columellae. This study expands the diversity of soil fungi in Thailand.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141017817","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 : 2024-03-21DOI: 10.11646/phytotaxa.641.4.2
MENG-LAN Chen, Jingyi Zhang, YUAN-PIN Xiao, Yongzhong Lu
Species of Biscogniauxia (Graphostromataceae) are known as pathogens and endophytes, distributed worldwide. In this study, we isolated two new endophytic strains of Biscogniauxia from Dicranopteris dichotoma. A new species, B. dicranopteridis, and a new host record of B. petrensis were identified based on morphology and phylogenetic analysis of four genes loci (LSU, ITS, RPB2 and β-TUB). Detailed descriptions and illustrations of the two new isolates, along with a phylogenetic tree depicting the position of the new species, are provided.
Biscogniauxia（Graphostromataceae）物种是已知的病原体和内生菌，分布于世界各地。在这项研究中，我们从二旋覆花（Dicranopteris dichotoma）中分离到了两个新的内生菌株。根据形态学和四个基因位点（LSU、ITS、RPB2 和 β-TUB）的系统发育分析，确定了一个新种 B. dicranopteridis 和一个新的 B. petrensis 宿主记录。本文提供了这两个新分离物的详细描述和图解，以及描述新物种位置的系统发生树。
{"title":"Biscogniauxia dicranopteridis sp. nov. and B. petrensis isolated from Dicranopteris dichotoma in China","authors":"MENG-LAN Chen, Jingyi Zhang, YUAN-PIN Xiao, Yongzhong Lu","doi":"10.11646/phytotaxa.641.4.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.2","url":null,"abstract":"Species of Biscogniauxia (Graphostromataceae) are known as pathogens and endophytes, distributed worldwide. In this study, we isolated two new endophytic strains of Biscogniauxia from Dicranopteris dichotoma. A new species, B. dicranopteridis, and a new host record of B. petrensis were identified based on morphology and phylogenetic analysis of four genes loci (LSU, ITS, RPB2 and β-TUB). Detailed descriptions and illustrations of the two new isolates, along with a phylogenetic tree depicting the position of the new species, are provided.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140222668","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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