Pub Date : 2024-05-08DOI: 10.11646/phytotaxa.647.1.6
SHU-PENG Dong, YI Huang, ZU-LIN Ning
Aspidistra yangchunensis, a new species of Asparagaceae from Guangdong, southern China, is described and illustrated. Aspidistra yangchunensis resembles A. subrotata, but can be distinguished by the syntepalous part of perigone almost flat, 4 alternate perigone lobes folded at base in full bloom, pure white pistil, lower surface of stigma folds inward to form a circular inner space.
本报告描述并说明了产自中国南方广东的天南星科新种 Aspidistra yangchunensis。Aspidistra yangchunensis 与 A. subrotata 相似，但可通过以下特征加以区分：花被的合成萼部几乎是平的，盛开时 4 个互生的花被裂片在基部折叠，雌蕊纯白色，柱头下表面向内折叠，形成一个圆形的内部空间。
{"title":"Aspidistra yangchunensis (Asparagaceae), a new species from Guangdong, China","authors":"SHU-PENG Dong, YI Huang, ZU-LIN Ning","doi":"10.11646/phytotaxa.647.1.6","DOIUrl":"https://doi.org/10.11646/phytotaxa.647.1.6","url":null,"abstract":"Aspidistra yangchunensis, a new species of Asparagaceae from Guangdong, southern China, is described and illustrated. Aspidistra yangchunensis resembles A. subrotata, but can be distinguished by the syntepalous part of perigone almost flat, 4 alternate perigone lobes folded at base in full bloom, pure white pistil, lower surface of stigma folds inward to form a circular inner space.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141000652","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 : 2024-05-08DOI: 10.11646/phytotaxa.647.1.5
Vidyamali Koodalugodaarachchi, K. Chethana, R. Jayawardena, D. Bundhun, Janith V. S. Aluthmuhandiram, N. Suwannarach, I. Manawasinghe, S. Lumyong
Camellia sinensis (L.) Kuntze var. assamica (Miang tea) is widely distributed in northern Thailand due to its traditional and industrial attributes, including black tea and Miang production. In this study, two Pestalotioid taxa associated with C. sinensis leaf spots were collected in Mae Taeng district, Chiang Mai Province, Thailand. Species delineation was based on the evidence from morphological and multi-locus phylogenies using ITS, tub2 and tef1-α. Neopestalotiopsis saprophytica is herein reported as a new record on Camellia sinensis, while Pseudopestalotiopsis chinensis is recorded as a new geographical record from Thailand. The findings of this research have the potential to offer fresh insights into the two previously documented species within the existing fungal community associated with C. sinensis in Thailand. This, in turn, could enhance our comprehension of their interactions with the host plant in the times ahead.
{"title":"New records of Pestalotioid species associated with leaf spot disease on Camellia sinensis from northern Thailand","authors":"Vidyamali Koodalugodaarachchi, K. Chethana, R. Jayawardena, D. Bundhun, Janith V. S. Aluthmuhandiram, N. Suwannarach, I. Manawasinghe, S. Lumyong","doi":"10.11646/phytotaxa.647.1.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.647.1.5","url":null,"abstract":"Camellia sinensis (L.) Kuntze var. assamica (Miang tea) is widely distributed in northern Thailand due to its traditional and industrial attributes, including black tea and Miang production. In this study, two Pestalotioid taxa associated with C. sinensis leaf spots were collected in Mae Taeng district, Chiang Mai Province, Thailand. Species delineation was based on the evidence from morphological and multi-locus phylogenies using ITS, tub2 and tef1-α. Neopestalotiopsis saprophytica is herein reported as a new record on Camellia sinensis, while Pseudopestalotiopsis chinensis is recorded as a new geographical record from Thailand. The findings of this research have the potential to offer fresh insights into the two previously documented species within the existing fungal community associated with C. sinensis in Thailand. This, in turn, could enhance our comprehension of their interactions with the host plant in the times ahead.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999836","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 : 2024-05-08DOI: 10.11646/phytotaxa.647.1.1
LU Wang, Jiangqing Su, Akmal Muhammad, Changlin Zhao
Wood-inhabiting fungi are a cosmopolitan fungal group worldwide. Two new wood-inhabiting fungal species, Rhodoantrodia purpurascens and Steccherinum wumengshanense are proposed based on a combination of the morphological features and molecular evidence. Rhodoantrodia purpurascens is characterized by the corky basidiomata with a pale lilac to lavender pore surface, a dimitic hyphal system with clamped generative hyphae, and broadly ellipsoid basidiospores. Steccherinum wumengshanense is characterized by the corticoid basidiomata having a white to cream hymenial surface, a monomitic hyphal system with clamp generative hyphae, and ellipsoid basidiospores. Full descriptions, photo plates and phylogenetic analysis results of the new species are provided.
{"title":"Two new wood-inhabiting fungal species (Polyporales, Basidiomycota) from Yunnan Province, China","authors":"LU Wang, Jiangqing Su, Akmal Muhammad, Changlin Zhao","doi":"10.11646/phytotaxa.647.1.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.647.1.1","url":null,"abstract":"Wood-inhabiting fungi are a cosmopolitan fungal group worldwide. Two new wood-inhabiting fungal species, Rhodoantrodia purpurascens and Steccherinum wumengshanense are proposed based on a combination of the morphological features and molecular evidence. Rhodoantrodia purpurascens is characterized by the corky basidiomata with a pale lilac to lavender pore surface, a dimitic hyphal system with clamped generative hyphae, and broadly ellipsoid basidiospores. Steccherinum wumengshanense is characterized by the corticoid basidiomata having a white to cream hymenial surface, a monomitic hyphal system with clamp generative hyphae, and ellipsoid basidiospores. Full descriptions, photo plates and phylogenetic analysis results of the new species are provided.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999514","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 : 2024-05-08DOI: 10.11646/phytotaxa.647.1.4
L. Bai, Nia-He Xia
The rhizomes of Zingiber are highly diverse and have potential in taxonomy, but their fundamental structure has never been properly understood in connection with an understanding of the sympodial growth form of the whole plant. This study is based on a literature review and on observations of fresh materials of 32 Zingiber species mainly from China, representing all four sections of the genus. An analysis of the sympodial modular growth habit of these plants has recognised that both isomodular and heteromodular growth exist within the genus. The study shows that rhizomes of Zingiber are highly-organised, compound, sympodial structures. By introducing the term rhizome unit, Zingiber rhizomes can be meaningfully described by depicting the morphology of the rhizome units and the relative arrangement of these units to one another. Six morphological attributes of rhizome units (shape, size, direction of growth, colour and number of nodes per rhizome, and length of internodes) and two attributes of their relative arrangement to one another (dorsiventral vs lateral position of rhizome units and the ramification position along the length of rhizome unit) are discussed. A preliminary assessment of variation patterns and the taxonomic value of these characters are presented. Together, these attributes contribute to the overall morphology of rhizomes. The relationship between rhizome structure and the above-ground clumping habit is discussed. The term pseudo-neck is coined to refer to the narrowed basal part that occurs in the rhizome units of some Zingiber species while the thick apical part of rhizome units where the internodes are often shorter than those on the pseudo-neck is called head. Problems with existing terminology for rhizome and plant habit descriptions in Zingiber are highlighted. This study suggests that whether the plane of distichy of leaves is parallel or perpendicular to the rhizome unit, a key character that many previous studies used for subdivision of Zingiberaceae, needs re-assessment, because in Zingiber both states of the character exist. Characters of rhizome morphology of the four sections in Zingiber are discussed, but studies of a larger number of species are needed to better-assess the relevance of these characters to the infrageneric classification of the genus. Schematic illustrations and colour plates of rhizomes from representative species are provided to assist the descriptions and discussions. It is hoped that this preliminary study will facilitate and encourage more comprehensive studies of rhizomes of Zingiber and of other genera within Zingiberaceae. Such work will lead to a better understanding of these structures and help establish a more comprehensive and accurate terminology for them, which in turn will facilitate the taxonomy and identification of the family.
{"title":"A preliminary study of the morphological variation of rhizomes in Zingiber Mill. and its role in taxonomy","authors":"L. Bai, Nia-He Xia","doi":"10.11646/phytotaxa.647.1.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.647.1.4","url":null,"abstract":"The rhizomes of Zingiber are highly diverse and have potential in taxonomy, but their fundamental structure has never been properly understood in connection with an understanding of the sympodial growth form of the whole plant. This study is based on a literature review and on observations of fresh materials of 32 Zingiber species mainly from China, representing all four sections of the genus. An analysis of the sympodial modular growth habit of these plants has recognised that both isomodular and heteromodular growth exist within the genus. The study shows that rhizomes of Zingiber are highly-organised, compound, sympodial structures. By introducing the term rhizome unit, Zingiber rhizomes can be meaningfully described by depicting the morphology of the rhizome units and the relative arrangement of these units to one another. Six morphological attributes of rhizome units (shape, size, direction of growth, colour and number of nodes per rhizome, and length of internodes) and two attributes of their relative arrangement to one another (dorsiventral vs lateral position of rhizome units and the ramification position along the length of rhizome unit) are discussed. A preliminary assessment of variation patterns and the taxonomic value of these characters are presented. Together, these attributes contribute to the overall morphology of rhizomes. The relationship between rhizome structure and the above-ground clumping habit is discussed. The term pseudo-neck is coined to refer to the narrowed basal part that occurs in the rhizome units of some Zingiber species while the thick apical part of rhizome units where the internodes are often shorter than those on the pseudo-neck is called head. Problems with existing terminology for rhizome and plant habit descriptions in Zingiber are highlighted. This study suggests that whether the plane of distichy of leaves is parallel or perpendicular to the rhizome unit, a key character that many previous studies used for subdivision of Zingiberaceae, needs re-assessment, because in Zingiber both states of the character exist. Characters of rhizome morphology of the four sections in Zingiber are discussed, but studies of a larger number of species are needed to better-assess the relevance of these characters to the infrageneric classification of the genus. Schematic illustrations and colour plates of rhizomes from representative species are provided to assist the descriptions and discussions. It is hoped that this preliminary study will facilitate and encourage more comprehensive studies of rhizomes of Zingiber and of other genera within Zingiberaceae. Such work will lead to a better understanding of these structures and help establish a more comprehensive and accurate terminology for them, which in turn will facilitate the taxonomy and identification of the family.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999629","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 : 2024-05-08DOI: 10.11646/phytotaxa.647.1.2
M. Tamayo, V. Amoroso, F. Coritico, D. Penneys, J. Callado, John D. Horner, Peter W. Fritsch
Three new species of Vaccinium endemic to the island of Mindanao, Philippines are here described and illustrated. Vaccinium fallax most closely resembles V. myrtoides, but differs by having smaller leaves, caducous bracts, shorter pedicels, a broadly obconical hypanthium, broadly triangular calyx lobes, and a deep pink and broadly urceolate corolla. It grows on exposed areas and among sulfur vents at and near the summit of Mt. Apo. Vaccinium gamay most closely resembles V. gitingense, but differs in having shorter inflorescences, early caducous inflorescence bracts, shorter pedicels, presence of clavate glands on the hypanthium, and an absence of anther spurs. It grows on exposed areas in the ultramafic forest of Mt. Hamiguitan. It is one of only two Philippine Vaccinium species possessing distinctly callose-thickened calyx lobes, the other being V. gitingense. Vaccinium vomicum most closely resembles V. carmesinum, but differs by having smaller leaves, presence of glands on the extreme end of the leaf blade base, presence of clavate glands on the hypanthium, shorter stamens, and presence of stalked glands on the dentate apex of the tubules. It grows in the mossy rainforest of Mt. Kitanglad, and it is the only Philippine species of Vaccinium with glands on the extreme end of its leaf blade base. Following IUCN guidelines, we propose a conservation status of Critically Endangered for V. fallax, Endangered for V. gamay, and Data Deficient for V. vomicum. With these discoveries, the number of Vaccinium species in Mindanao Islands increases to 22 and in the Philippines to 44. Furthermore, the Mindanao Islands can now be considered the center of Vaccinium diversity in the Philippines.
本文描述了菲律宾棉兰老岛特有的三个蔓越橘新种，并配有插图。myrtoides，但不同之处在于叶片较小，苞片早落，花梗较短，托杯宽倒圆锥形，萼裂片宽三角形，花冠深粉红色，宽瓶形。它生长在阿波山山顶和山顶附近的裸露地区和硫磺喷口之间。gitingense 最相似，但花序较短，花序苞片早落，花梗较短，托杯上有棍棒状腺体，没有花药距。它生长在哈米吉坦山超基性岩森林的裸露地区。它是菲律宾仅有的两个具有明显胼胝质增厚萼裂片的越橘品种之一，另一个是 V. gitingense。carmesinum 最相似，但不同之处在于叶片较小，叶片基部的最末端有腺体，托杯上有棍棒状腺体，雄蕊较短，小管的齿状先端有柄状腺体。它生长在基坦格拉德山（Mt. Kitanglad）的苔藓雨林中，是菲律宾唯一一种叶片基部末端有腺体的越橘。根据世界自然保护联盟（IUCN）的指导方针，我们建议将 V. fallax 列为极危物种，V. gamay 列为濒危物种，V. vomicum 列为数据不足物种。有了这些发现，棉兰老岛上的越橘物种增加到 22 种，菲律宾的物种增加到 44 种。此外，棉兰老岛现在可被视为菲律宾越橘多样性的中心。
{"title":"Three new species of Vaccinium L. (Ericaceae) from Mindanao Island, Philippines","authors":"M. Tamayo, V. Amoroso, F. Coritico, D. Penneys, J. Callado, John D. Horner, Peter W. Fritsch","doi":"10.11646/phytotaxa.647.1.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.647.1.2","url":null,"abstract":"Three new species of Vaccinium endemic to the island of Mindanao, Philippines are here described and illustrated. Vaccinium fallax most closely resembles V. myrtoides, but differs by having smaller leaves, caducous bracts, shorter pedicels, a broadly obconical hypanthium, broadly triangular calyx lobes, and a deep pink and broadly urceolate corolla. It grows on exposed areas and among sulfur vents at and near the summit of Mt. Apo. Vaccinium gamay most closely resembles V. gitingense, but differs in having shorter inflorescences, early caducous inflorescence bracts, shorter pedicels, presence of clavate glands on the hypanthium, and an absence of anther spurs. It grows on exposed areas in the ultramafic forest of Mt. Hamiguitan. It is one of only two Philippine Vaccinium species possessing distinctly callose-thickened calyx lobes, the other being V. gitingense. Vaccinium vomicum most closely resembles V. carmesinum, but differs by having smaller leaves, presence of glands on the extreme end of the leaf blade base, presence of clavate glands on the hypanthium, shorter stamens, and presence of stalked glands on the dentate apex of the tubules. It grows in the mossy rainforest of Mt. Kitanglad, and it is the only Philippine species of Vaccinium with glands on the extreme end of its leaf blade base. Following IUCN guidelines, we propose a conservation status of Critically Endangered for V. fallax, Endangered for V. gamay, and Data Deficient for V. vomicum. With these discoveries, the number of Vaccinium species in Mindanao Islands increases to 22 and in the Philippines to 44. Furthermore, the Mindanao Islands can now be considered the center of Vaccinium diversity in the Philippines.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140998000","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 : 2024-05-06DOI: 10.11646/phytotaxa.646.3.2
Fernando OMAR ZULOAGA, S. Aliscioni, Carolina Delfini, Diego L. Salariato
Studies of African material of the tribe Paniceae (Poaceae) resulted in the transfer of 12 species from Panicum, the description of a new species, and the conclusion that the genus Trichanthecium now consists of 52 species. The new Trichanthecium delimitation was confirmed by phylogenetic studies based on chloroplast ndhF and rbcL sequences. Morphological and anatomical characters are discussed within their pylogenetic context. A new species is described: T. marunguensis. Lectotypes are designated for Panicum aequinerve, P. calvum, P. chionachne, P. hochstetteri var. glaberrimum, P. inaequilatum, P. lepidum, P. mokaense, and P. wiehei. The following new combinations are proposed: T. acrotrichum, T. aequinerve, T. calvum, T. chionachne, T. delicatulum, T. eickii, T. hochstetteri, T. inaequilatum, T. perrieri, T. pusillum, T. striatissimum, and T. wiehei. Full synonymies, descriptions, distribution and habitat information, citation of all specimens and a key to the Old World species of the genus are provided; seven species are illustrated.
通过对非洲野豌豆科（Poaceae）的材料进行研究，从豌豆中分离出 12 个物种，描述了一个新物种，并得出 Trichanthecium 属现在由 52 个物种组成的结论。基于叶绿体 ndhF 和 rbcL 序列的系统发育研究证实了新的 Trichanthecium 定界。在幽门发生学背景下讨论了形态学和解剖学特征。描述了一个新物种：T. marunguensis。p. hochstetteri var. glaberrimum, P. inaequilatum, P. lepidum, P. mokaense, and P. wiehei.提出了以下新组合：acrotrichum、T. aequinerve、T. calvum、T. chionachne、T. delicatulum、T. eickii、T. hochstetteri、T. inaequilatum、T. perrieri、T. pusillum、T. striatissimum 和 T. wiehei。提供了完整的同义词、描述、分布和栖息地信息、所有标本的引文以及该属旧大陆种的检索表；其中 7 个种配有插图。
{"title":"Old World species of Trichanthecium (Poaceae: Panicoideae: Paniceae) including a new species from the Democratic Republic of Congo","authors":"Fernando OMAR ZULOAGA, S. Aliscioni, Carolina Delfini, Diego L. Salariato","doi":"10.11646/phytotaxa.646.3.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.3.2","url":null,"abstract":"Studies of African material of the tribe Paniceae (Poaceae) resulted in the transfer of 12 species from Panicum, the description of a new species, and the conclusion that the genus Trichanthecium now consists of 52 species. The new Trichanthecium delimitation was confirmed by phylogenetic studies based on chloroplast ndhF and rbcL sequences. Morphological and anatomical characters are discussed within their pylogenetic context. A new species is described: T. marunguensis. Lectotypes are designated for Panicum aequinerve, P. calvum, P. chionachne, P. hochstetteri var. glaberrimum, P. inaequilatum, P. lepidum, P. mokaense, and P. wiehei. The following new combinations are proposed: T. acrotrichum, T. aequinerve, T. calvum, T. chionachne, T. delicatulum, T. eickii, T. hochstetteri, T. inaequilatum, T. perrieri, T. pusillum, T. striatissimum, and T. wiehei. Full synonymies, descriptions, distribution and habitat information, citation of all specimens and a key to the Old World species of the genus are provided; seven species are illustrated.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141010503","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 : 2024-05-06DOI: 10.11646/phytotaxa.646.3.1
E. Gándara, Juan Pablo Ortíz-Brunel, Marko Gómez-Hernández, Eduardo Ruiz-Sanchez
Behria is a genus of petaloid geophytes endemic to the Cape Region of Baja California Sur, Mexico. It belongs to the Milla clade within the subfamily Brodiaeoideae of the Asparagaceae family. Currently, Behria tenuiflora is the only recognized species within this genus. In our methodological approach, we considered two distinct floral morphotypes: Group A consists of populations found at lowland elevations (10–150 m), while Group B comprises plants growing at mid to high elevations (400–2060 m). The aim of our study was to investigate whether there are discernible morphological differences and correlations with climate variables between Behria Group A and Group B. To address this, we measured nine quantitative characters for 94 plants from seven populations of Behria tenuiflora. Our findings revealed statistically significant differences (P < 0.05) in pedicel length, perianth length, perianth base diameter, and perianth aperture diameter of the analyzed Behria groups. Based on these results, we propose the recognition of Behria leonis as a new species. Additionally, we provide a morphological key for distinguishing Behria and Bessera genera, along with illustrations, a distribution map, and photographs.
{"title":"A new cryptic species in Behria (Asparagaceae, Brodiaeoideae), from the Baja California peninsula, Mexico","authors":"E. Gándara, Juan Pablo Ortíz-Brunel, Marko Gómez-Hernández, Eduardo Ruiz-Sanchez","doi":"10.11646/phytotaxa.646.3.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.3.1","url":null,"abstract":"Behria is a genus of petaloid geophytes endemic to the Cape Region of Baja California Sur, Mexico. It belongs to the Milla clade within the subfamily Brodiaeoideae of the Asparagaceae family. Currently, Behria tenuiflora is the only recognized species within this genus. In our methodological approach, we considered two distinct floral morphotypes: Group A consists of populations found at lowland elevations (10–150 m), while Group B comprises plants growing at mid to high elevations (400–2060 m). The aim of our study was to investigate whether there are discernible morphological differences and correlations with climate variables between Behria Group A and Group B. To address this, we measured nine quantitative characters for 94 plants from seven populations of Behria tenuiflora. Our findings revealed statistically significant differences (P < 0.05) in pedicel length, perianth length, perianth base diameter, and perianth aperture diameter of the analyzed Behria groups. Based on these results, we propose the recognition of Behria leonis as a new species. Additionally, we provide a morphological key for distinguishing Behria and Bessera genera, along with illustrations, a distribution map, and photographs.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008931","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 : 2024-05-06DOI: 10.11646/phytotaxa.646.3.5
Jian Wang, Bruce Gray
Lomandra scabrifolia Jian Wang ter & B.Gray, sp. nov. and Lomandra tenuis Jian Wang ter & B.Gray, sp. nov. from north Queensland, Australia are described, illustrated and compared to the morphologically and phylogenetically closely related species. Notes are provided on their distributions including a map, habitat, phenology and affinities. Their conservation status is also assessed.
Lomandra scabrifolia Jian Wang ter & B.Gray，新种；Lomandra tenuis Jian Wang ter & B.Gray，新种。报告还介绍了它们的分布情况，包括地图、栖息地、物候学和亲缘关系。还对其保护状况进行了评估。
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Pub Date : 2024-05-06DOI: 10.11646/phytotaxa.646.3.4
K. Latha, P. Haridev, K. Raj, P. Manimohan
Hygrocybe pellucida sp. nov. is described from Kerala State, India based on both morphology and multigene phylogenetic analyses (nrITS, nrLSU). This species is characterized by small, viscid, translucent basidiocarps, a whitish to grayish pileus with reddish pellucid striations, dimorphic basidiospores and basidia, a sterile lamella edge with abundant pseudocystidia, an ixotrichoderm-type pileipellis and an ixocutis-type stipitipellis. A comprehensive species description along with photographs of both the basidiocarps and the microscopic features, line drawings of the microscopic structures, a comparison with morphologically similar and phylogenetically related species and phylogenetic trees inferring the placement of the new species within the section Velosae are provided.
{"title":"Hygrocybe pellucida—a new species of Hygrophoraceae from Kerala State, India","authors":"K. Latha, P. Haridev, K. Raj, P. Manimohan","doi":"10.11646/phytotaxa.646.3.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.3.4","url":null,"abstract":"Hygrocybe pellucida sp. nov. is described from Kerala State, India based on both morphology and multigene phylogenetic analyses (nrITS, nrLSU). This species is characterized by small, viscid, translucent basidiocarps, a whitish to grayish pileus with reddish pellucid striations, dimorphic basidiospores and basidia, a sterile lamella edge with abundant pseudocystidia, an ixotrichoderm-type pileipellis and an ixocutis-type stipitipellis. A comprehensive species description along with photographs of both the basidiocarps and the microscopic features, line drawings of the microscopic structures, a comparison with morphologically similar and phylogenetically related species and phylogenetic trees inferring the placement of the new species within the section Velosae are provided.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141007365","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 : 2024-05-06DOI: 10.11646/phytotaxa.646.3.3
M. Dudáš, V. Kolarčik, R. Šuvada, R. Vašut
The group of lesser dandelions (Taraxacum sect. Erythrosperma) is represented by more than 215 species growing in mostly xerothermic habitats throughout Europe. The only known species with sexual reproduction in this section is the diploid T. erythrospermum. It occurs in southern parts of Europe and reaches its northern limit in central Europe. In this study, we aimed at a detailed mapping of the species distribution in Slovakia in order to understand the spatial distribution at its northern range limits. We found that it is the most common xerothermous species in Slovakia, growing on various substrates such as limestone, dolomite, travertine, volcanic rocks and sands, while it is less common on brown soils and ruderal biotopes. It is a characteristic species of the class Festuco-Brometea with an altitudinal range extending from 120 to 650 m above sea level. We delimited the northern distribution and documented its highest occurrence at approximately ca 1500 m a.s.l. Two taxa, T. slovacum and T. punctatum, were described from the territory of Slovakia and we discuss their relationships to T. erythrospermum, with which T. slovacum is synonymised here for the first time. We also present new data on the genome size of T. erythrospermum in Slovakia, which range from 1.529 to 1.604 pg with a mean of 1.554 pg (± 0.024 SD), and provide chorological data on a remarkable morphological variant with grey-coloured achenes.
小蒲公英类（Taraxacum sect.Erythrosperma）有超过 215 个物种，生长在欧洲大部分地区的低温生境中。在该组中，唯一已知的有性生殖物种是二倍体蒲公英（T. erythrospermum）。它分布于欧洲南部，在欧洲中部达到其北部极限。在这项研究中，我们旨在详细绘制该物种在斯洛伐克的分布图，以了解其北部分布区的空间分布情况。我们发现，它是斯洛伐克最常见的干热性物种，生长在各种基质上，如石灰石、白云石、石灰华、火山岩和沙土，而在褐土和原生生物群落中较少见。它是 Festuco-Brometea 类中的一个特色物种，分布范围从海拔 120 米到 650 米不等。slovacum 和 T. punctatum，我们讨论了它们与 T. erythrospermum 的关系，在此首次将 T. slovacum 与 T. erythrospermum 同名。我们还提供了斯洛伐克 T. erythrospermum 基因组大小的新数据，其范围在 1.529 至 1.604 pg 之间，平均值为 1.554 pg（± 0.024 SD），并提供了一种具有灰色瘦果的显著形态变异的脉络学数据。
{"title":"Taraxacum sect. Erythrosperma (Asteraceae, Cichorioideae) in Slovakia IV. Distribution of T. erythrospermum and synonymisation of T. slovacum","authors":"M. Dudáš, V. Kolarčik, R. Šuvada, R. Vašut","doi":"10.11646/phytotaxa.646.3.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.646.3.3","url":null,"abstract":"The group of lesser dandelions (Taraxacum sect. Erythrosperma) is represented by more than 215 species growing in mostly xerothermic habitats throughout Europe. The only known species with sexual reproduction in this section is the diploid T. erythrospermum. It occurs in southern parts of Europe and reaches its northern limit in central Europe. In this study, we aimed at a detailed mapping of the species distribution in Slovakia in order to understand the spatial distribution at its northern range limits. We found that it is the most common xerothermous species in Slovakia, growing on various substrates such as limestone, dolomite, travertine, volcanic rocks and sands, while it is less common on brown soils and ruderal biotopes. It is a characteristic species of the class Festuco-Brometea with an altitudinal range extending from 120 to 650 m above sea level. We delimited the northern distribution and documented its highest occurrence at approximately ca 1500 m a.s.l. Two taxa, T. slovacum and T. punctatum, were described from the territory of Slovakia and we discuss their relationships to T. erythrospermum, with which T. slovacum is synonymised here for the first time. We also present new data on the genome size of T. erythrospermum in Slovakia, which range from 1.529 to 1.604 pg with a mean of 1.554 pg (± 0.024 SD), and provide chorological data on a remarkable morphological variant with grey-coloured achenes.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141009791","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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