Pub Date : 2024-01-03DOI: 10.11646/phytotaxa.633.1.3
H. Eroğlu, S. M. Pinar, İsmai̇l Eker
Leopoldia oztasii sp. nov. (Asparagaceae, Scilloideae) is described as a new species in this study. It spreads on the stony slopes of Konya province in the south of Türkiye. Leopoldia oztasii is similar to L. tenuiflora, but it is easily distinguished from it, by having larger bulbs, falcate leaves, shorter scape, conical inflorescence, longer pedicels, and larger capsules. In this study, the morphology, seed surface characteristics and ecology of L. oztasii were studied. A detailed description of the new species, a comparison table between the two species, and detailed photographs showing their differences are provided. The distribution areas of L. oztasii and L. tenuiflora in Türkiye are also presented on the map.
Leopoldia oztasii sp. nov. (Asparagaceae, Scilloideae) 被描述为本研究中的一个新种。它分布在土耳其南部科尼亚省的石质山坡上。Leopoldia oztasii与L. tenuiflora相似，但很容易与之区分，因为它的鳞茎较大，叶片镰刀形，花葶较短，花序圆锥形，花梗较长，蒴果较大。本研究对 L. oztasii 的形态、种子表面特征和生态学进行了研究。本研究提供了新种的详细描述、两个种的对比表以及显示其差异的详细照片。地图上还标出了 L. oztasii 和 L. tenuiflora 在土耳其的分布区域。
{"title":"A new Leopoldia (Asparagaceae, Scilloideae) species from South Anatolia-Türkiye: Leopoldia oztasii","authors":"H. Eroğlu, S. M. Pinar, İsmai̇l Eker","doi":"10.11646/phytotaxa.633.1.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.633.1.3","url":null,"abstract":"Leopoldia oztasii sp. nov. (Asparagaceae, Scilloideae) is described as a new species in this study. It spreads on the stony slopes of Konya province in the south of Türkiye. Leopoldia oztasii is similar to L. tenuiflora, but it is easily distinguished from it, by having larger bulbs, falcate leaves, shorter scape, conical inflorescence, longer pedicels, and larger capsules. In this study, the morphology, seed surface characteristics and ecology of L. oztasii were studied. A detailed description of the new species, a comparison table between the two species, and detailed photographs showing their differences are provided. The distribution areas of L. oztasii and L. tenuiflora in Türkiye are also presented on the map.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"57 9","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139451557","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 : 2024-01-03DOI: 10.11646/phytotaxa.633.1.10
Rohitkumar M. Patel, Sujitkumar R. Prajapati, S. Martín‐Bravo
A new species of the genus Ochradenus (Resedaceae), O. lakhpatensis, is described and illustrated. It is known from just five populations endemic to a relatively restricted area in Western India (Gujarat state), constituting the easternmost known records of the genus. It is morphologically similar to O. harsusiticus but differs in having pedicellate flowers and fruits, a higher number of stamens, wider fruit, and open fruit apex. A detailed description of the new species including colour photographs and an identification key to distinguish currently accepted Ochradenus species are provided. A preliminary conservation assessment of the species is also conducted under IUCN categories and criteria at the global level, resulting in the proposal of the Endangered category. In addition, we propose the exclusion of O. baccatus from the Indian flora, as it seems to be erroneous record.
本文描述并图解了 Ochradenus 属（Resedaceae）的一个新种 O. lakhpatensis。该种仅从印度西部（古吉拉特邦）相对有限的地区特有的五个种群中发现，构成了该属最东部的已知记录。harsusiticus 相似，但不同之处在于花和果有花梗，雄蕊数目较多，果实较宽，果顶开阔。本文对该新种进行了详细描述，包括彩色照片和识别要点，以区分目前公认的 Ochradenus 种。我们还根据世界自然保护联盟（IUCN）的全球类别和标准对该物种进行了初步保护评估，并建议将其列入濒危类别。此外，我们建议将 O. baccatus 从印度植物区系中剔除，因为它似乎是一个错误的记录。
{"title":"Ochradenus lakhpatensis (Resedaceae), a new species from Gujarat, India","authors":"Rohitkumar M. Patel, Sujitkumar R. Prajapati, S. Martín‐Bravo","doi":"10.11646/phytotaxa.633.1.10","DOIUrl":"https://doi.org/10.11646/phytotaxa.633.1.10","url":null,"abstract":"A new species of the genus Ochradenus (Resedaceae), O. lakhpatensis, is described and illustrated. It is known from just five populations endemic to a relatively restricted area in Western India (Gujarat state), constituting the easternmost known records of the genus. It is morphologically similar to O. harsusiticus but differs in having pedicellate flowers and fruits, a higher number of stamens, wider fruit, and open fruit apex. A detailed description of the new species including colour photographs and an identification key to distinguish currently accepted Ochradenus species are provided. A preliminary conservation assessment of the species is also conducted under IUCN categories and criteria at the global level, resulting in the proposal of the Endangered category. In addition, we propose the exclusion of O. baccatus from the Indian flora, as it seems to be erroneous record.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"36 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139452344","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.10
A. Tuler, Lázaro Henrique Soares de Moraes Conceição, G. Costa, Carolyn Elinore Barnes Proença
N/A
不适用
{"title":"Psidium schenckianum (Myrtaceae): lectotypification, a new synonym and notes on a typical Caatinga species","authors":"A. Tuler, Lázaro Henrique Soares de Moraes Conceição, G. Costa, Carolyn Elinore Barnes Proença","doi":"10.11646/phytotaxa.632.1.10","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.10","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"185 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153847","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.4
Carlos R. Figueroa, Manuel Quilodrán, Patricio Peñailillo, Carlos M. Baeza, Oscar Arrey-Salas
Fragaria genus has a worldwide distribution and different ploidy levels. The only wild Fragaria species described in Chile is the octoploid Fragaria chiloensis. In a group of Fragaria accessions from southern Chile including Fragaria chiloensis subsp. chiloensis f. patagonica individuals, an accession named Fragaria-MEN, caught our attention because it shows notable phenotypic differences compared to the rest of the accessions. Fragaria-MEN was collected near the Menetue hot springs (Araucania Region, Chile) and differs from the other F. chiloensis plants mainly in leaf morphology. Due to these differences, we carried out a full morphology description of Fragaria-MEN individuals and then a characterization of the chromosomes and genome size to verify the ploidy level. Morphological analysis reveals close vegetative and reproductive characteristics shared with the non-native diploid Fragaria vesca ‘Hawaii’ species. We also observed a DNA amount according to the diploidy (2n = 2× = 14) revealed by cytological analysis of chromosomes. We propose Fragaria-MEN as F. vesca population that should have been introduced and now is naturalized in the Araucania Region of Chile.
佛手属植物分布于世界各地，具有不同的倍性水平。智利描述的唯一野生雌花属植物是八倍体的 Fragaria chiloensis。在一组来自智利南部（包括 Fragaria chiloensis subsp.Fragaria-MEN 采集于 Menetue 温泉附近（智利阿劳卡尼亚大区），与其他 F. chiloensis 植物的主要区别在于叶片形态。由于这些差异，我们对 Fragaria-MEN 个体进行了全面的形态描述，然后对染色体和基因组大小进行了鉴定，以验证其倍性水平。形态学分析表明，雌雄异株的无性系和生殖系特征与非本地二倍体雌雄异株 "夏威夷 "物种相似。通过染色体的细胞学分析，我们还观察到二倍体（2n = 2× = 14）的 DNA 数量。我们建议将 Fragaria-MEN 作为 F. vesca 种群，该种群本应被引入智利，目前已在智利阿劳卡尼亚地区归化。
{"title":"A naturalized diploid Fragaria sp. (Rosaceae) found in southern Chile as revealed by morphological, ploidy and cytogenetic analyses","authors":"Carlos R. Figueroa, Manuel Quilodrán, Patricio Peñailillo, Carlos M. Baeza, Oscar Arrey-Salas","doi":"10.11646/phytotaxa.632.1.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.4","url":null,"abstract":"Fragaria genus has a worldwide distribution and different ploidy levels. The only wild Fragaria species described in Chile is the octoploid Fragaria chiloensis. In a group of Fragaria accessions from southern Chile including Fragaria chiloensis subsp. chiloensis f. patagonica individuals, an accession named Fragaria-MEN, caught our attention because it shows notable phenotypic differences compared to the rest of the accessions. Fragaria-MEN was collected near the Menetue hot springs (Araucania Region, Chile) and differs from the other F. chiloensis plants mainly in leaf morphology. Due to these differences, we carried out a full morphology description of Fragaria-MEN individuals and then a characterization of the chromosomes and genome size to verify the ploidy level. Morphological analysis reveals close vegetative and reproductive characteristics shared with the non-native diploid Fragaria vesca ‘Hawaii’ species. We also observed a DNA amount according to the diploidy (2n = 2× = 14) revealed by cytological analysis of chromosomes. We propose Fragaria-MEN as F. vesca population that should have been introduced and now is naturalized in the Araucania Region of Chile.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"4 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153482","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 have described and illustrated a new species, Luisia brachyota (Epidendroideae, Orchidaceae), from south Yunnan, China. Morphological comparisons indicated the new species is similar to L. filiformis and L. cordata, but differs from L. brachyota inflorescences 3-or 5-flowered, lip shorter than petals, hypochile thickly fleshy, epichile cordate adaxially with 7 or 9 papillate longitudinal ridges. Molecular analysis based on the nuclear ribosomal ITS and plastid sequences (matK, rbcL, and trnL-trnF) shows that it is a new species.
我们描述并展示了产自中国云南南部的一个新种--Luisia brachyota（Epidendroideae，兰科）。brachyota的花序为3或5花，唇瓣比花瓣短，副瓣厚肉质，副瓣正面心形，有7或9条乳头状纵脊。基于核核糖体 ITS 和质体序列（matK、rbcL 和 trnL-trnF）的分子分析表明，这是一个新种。
{"title":"Luisia brachyota (Orchidaceae; Epidendroideae) a new species from China: evidence based on morphological and molecular data","authors":"HOU-HUA Fu, Cheng-Yuan Zhou, Liang Ma, Siren Lan, Shi-Pin Chen","doi":"10.11646/phytotaxa.632.1.8","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.8","url":null,"abstract":"We have described and illustrated a new species, Luisia brachyota (Epidendroideae, Orchidaceae), from south Yunnan, China. Morphological comparisons indicated the new species is similar to L. filiformis and L. cordata, but differs from L. brachyota inflorescences 3-or 5-flowered, lip shorter than petals, hypochile thickly fleshy, epichile cordate adaxially with 7 or 9 papillate longitudinal ridges. Molecular analysis based on the nuclear ribosomal ITS and plastid sequences (matK, rbcL, and trnL-trnF) shows that it is a new species.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"7 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153520","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.6
M. F. Santos, E. H. P. Barretto
Myrcia sect. Eugeniopsis is one of the nine sections of Myrcia (Myrciinae, Myrteae, Myrtaceae) and includes mostly species of the current synonym genus Eugeniopsis. Using fieldwork and the analysis of herbarium collections as a basis, we describe here a new species of this section, Myrcia tenondeporan, which is endemic to the Atlantic Forest in the Serra do Mar Mountains. The new species is related to Myrcia vellozoi and Myrcia multipunctata but differs mainly in the leaf shape and size, inflorescence structure and size of floral buds.
Myrcia sect.Eugeniopsis是Myrcia科（Myrciinae，Myrteae，桃金娘科）的九个分支之一，包括目前同义属Eugeniopsis的大部分物种。通过实地考察和对标本馆藏品的分析，我们在此描述了该科的一个新物种 Myrcia tenondeporan，它是 Serra do Mar 山区大西洋森林的特有种。该新种与 Myrcia vellozoi 和 Myrcia multipunctata 有亲缘关系，但主要在叶片形状和大小、花序结构和花蕾大小方面存在差异。
{"title":"Myrcia tenondeporan, a new species of Myrtaceae from the Atlantic Forest in the Serra do Mar Mountains, Brazil","authors":"M. F. Santos, E. H. P. Barretto","doi":"10.11646/phytotaxa.632.1.6","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.6","url":null,"abstract":"Myrcia sect. Eugeniopsis is one of the nine sections of Myrcia (Myrciinae, Myrteae, Myrtaceae) and includes mostly species of the current synonym genus Eugeniopsis. Using fieldwork and the analysis of herbarium collections as a basis, we describe here a new species of this section, Myrcia tenondeporan, which is endemic to the Atlantic Forest in the Serra do Mar Mountains. The new species is related to Myrcia vellozoi and Myrcia multipunctata but differs mainly in the leaf shape and size, inflorescence structure and size of floral buds.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"71 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154568","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.1
David M. Williams, B. Vijver
The diatom genus Ctenophora is examined for its morphological characters and its relationships. Some aspects of the nomenclature of the genus are clarified with respect to various specimens identified as Ctenophora pulchella, Ctenophora saxonica and Ctenophora vertebrata. The focus is on the structure of the valves and girdle rather than a complete account of the species-level diversity in Ctenophora. General conclusions are (1) Ctenophora is not a monotypic genus; (2) the relationships of Ctenophora will include ‘Fragilaria’ famelica, Catacombas (= Synedra) and the various groups within the paraphyletic Tabularia.
{"title":"The diatom genus Ctenophora: A discussion on its morphology, relationships, and some species","authors":"David M. Williams, B. Vijver","doi":"10.11646/phytotaxa.632.1.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.1","url":null,"abstract":"The diatom genus Ctenophora is examined for its morphological characters and its relationships. Some aspects of the nomenclature of the genus are clarified with respect to various specimens identified as Ctenophora pulchella, Ctenophora saxonica and Ctenophora vertebrata. The focus is on the structure of the valves and girdle rather than a complete account of the species-level diversity in Ctenophora. General conclusions are (1) Ctenophora is not a monotypic genus; (2) the relationships of Ctenophora will include ‘Fragilaria’ famelica, Catacombas (= Synedra) and the various groups within the paraphyletic Tabularia.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"3 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153754","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.5
V. Nguyen, Leonid V. Averyanov, Quoc Bao Nguyen, VAN-SON Dang, V. Nguyen, T. Maisak, B. Truong
Three species of the genus Hoya (Apocynaceae, Asclepiadoideae) are newly reported for the flora of Vietnam. One species, Hoya honglenae, is described and illustrated as new to science, and two species, H. acuminata and H. phuwuaensis, are reported as new national records known earlier, respectively, in Bhutan, Bangladesh, NE India, W China, Myanmar; and NE Thailand. The new species discovered in Phu Quoc Island (Kien Giang Province) morphologically is most close to H. phuwuaensis, but differs in the entire, straight leaf margin, leaves sparsely white speckled adaxially and dirty purple speckled abaxially, smaller yellow flowers, conoid, obtuse, distally up-cured outer angle of corona lobes, and much longer anther appendages. The paper provides morphological descriptions, data on habitat, phenology, distribution, estimated conservation status, taxonomic notes, a list of studied specimens, and color illustrations for all studied species. Taking into consideration our new data, the genus in Vietnam currently includes 44 species.
越南植物区系中新报告了三个 Hoya 属（天南星科，Asclepiadoideae）物种。H. acuminata 和 H. phuwuaensis，分别在不丹、孟加拉国、印度东北部、中国西部、缅甸和泰国东北部发现。phuwuaensis 最接近，但不同之处在于叶缘全缘、平直，叶片正面有稀疏的白色斑点，背面有污紫色斑点，黄色花朵较小，副花冠裂片呈圆锥形，上部钝，外角上翘，花药附属物较长。本文提供了所有研究物种的形态描述、生境、物候、分布数据、估计保护状况、分类注释、研究标本清单和彩色插图。考虑到我们的新数据，该属在越南目前包括 44 个种。
{"title":"A new species, Hoya honglenae and the first report of H. acuminata and H. phuwuaensis (Apocynaceae, Asclepiadoideae) in the flora of Vietnam","authors":"V. Nguyen, Leonid V. Averyanov, Quoc Bao Nguyen, VAN-SON Dang, V. Nguyen, T. Maisak, B. Truong","doi":"10.11646/phytotaxa.632.1.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.5","url":null,"abstract":"Three species of the genus Hoya (Apocynaceae, Asclepiadoideae) are newly reported for the flora of Vietnam. One species, Hoya honglenae, is described and illustrated as new to science, and two species, H. acuminata and H. phuwuaensis, are reported as new national records known earlier, respectively, in Bhutan, Bangladesh, NE India, W China, Myanmar; and NE Thailand. The new species discovered in Phu Quoc Island (Kien Giang Province) morphologically is most close to H. phuwuaensis, but differs in the entire, straight leaf margin, leaves sparsely white speckled adaxially and dirty purple speckled abaxially, smaller yellow flowers, conoid, obtuse, distally up-cured outer angle of corona lobes, and much longer anther appendages. The paper provides morphological descriptions, data on habitat, phenology, distribution, estimated conservation status, taxonomic notes, a list of studied specimens, and color illustrations for all studied species. Taking into consideration our new data, the genus in Vietnam currently includes 44 species.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"65 8","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154413","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.3
Muhammad Asif, Malka Saba, Mubashar Raza
A novel species, Xerophorus pakistanicus, has been identified from Southern Punjab, Pakistan, based on morphological characters and molecular phylogenetic analyses. Xerophorus pakistanicus is characterized by a brown to dull orange, parabolic to campanulate pileus, a stipe turning light yellowish brown on handling, an absence of an annulus, amygdaliform to oblong basidiospores, utriform to pyriform caulocystidia, and the presence of clamp connections only in the stipitipellis. A phylogram, based on the combined nrITS-28S dataset, was constructed to assess the phylogenetic position of our strain, resulted Xerophorus pakistanicus sp. nov. within the genus Xerophorus. We present the new species with an illustrated morphological description and comparison with similar morphological or phylogenetically related species. This is the first record of the genus Xerophorus from Asia. A key to the known species of Xerophorus is also provided.
{"title":"First report of the genus Xerophorus from Asia with the description of Xerophorus pakistanicus (Callistosporiaceae), a new species from Southern Punjab, Pakistan","authors":"Muhammad Asif, Malka Saba, Mubashar Raza","doi":"10.11646/phytotaxa.632.1.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.3","url":null,"abstract":"A novel species, Xerophorus pakistanicus, has been identified from Southern Punjab, Pakistan, based on morphological characters and molecular phylogenetic analyses. Xerophorus pakistanicus is characterized by a brown to dull orange, parabolic to campanulate pileus, a stipe turning light yellowish brown on handling, an absence of an annulus, amygdaliform to oblong basidiospores, utriform to pyriform caulocystidia, and the presence of clamp connections only in the stipitipellis. A phylogram, based on the combined nrITS-28S dataset, was constructed to assess the phylogenetic position of our strain, resulted Xerophorus pakistanicus sp. nov. within the genus Xerophorus. We present the new species with an illustrated morphological description and comparison with similar morphological or phylogenetically related species. This is the first record of the genus Xerophorus from Asia. A key to the known species of Xerophorus is also provided.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"28 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153283","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 : 2023-12-27DOI: 10.11646/phytotaxa.632.1.2
Annemarie Heiduk, D. G. Styles
We describe a novel species of Ceropegia (Apocynaceae-Asclepiadoideae-Ceropegieae), C. strophanthiflora, from inland of Mtubatuba in northern KwaZulu-Natal, South Africa. The new species is placed in section Chamaesiphon where it appears to be vegetatively and floristically most similar to C. rehmannii (formerly Brachystelma foetidum). Ceropegia strophanthiflora can, however, be readily distinguished from this species by its strikingly colourful greenish-yellow flowers with bright purple markings and purplish-pink vibratile hairs fringing the corolla lobe bases. Most remarkable, however, are the unusually long, slender and twisted corolla lobes much reminiscent of flowers known in Strophanthus; hence the name C. strophanthiflora. There are no other known South African species exhibiting such flamboyant flowers. Concerningly, this spectacular new species may be at the brink of extinction as only very little habitat remains which is under severe anthropogenic threat. Brachystelma tanzaniense, a species with long and slender corolla lobes from Tanzania, is transferred to Ceropegia section Chamaesiphon under the proposed new name C. dodomaensis. Moreover, the blocking name for this transfer, C. tanzaniensis, is reduced to a synonym of C. cordiloba for which we designate a lectotype.
我们描述了南非夸祖鲁-纳塔尔省北部 Mtubatuba 内陆的一个 Ceropegia（Apocynaceae-Asclepiadoideae-Ceropegieae）新种 C. strophanthiflora。该新种被归入 Chamaesiphon 部分，在该部分中，它似乎与 C. rehmannii（原名 Brachystelma foetidum）在植物学和植物学上最为相似。不过，Ceropegia strophanthiflora 很容易与该种区分开来，因为它的花朵呈黄绿色，色彩鲜艳，花冠裂片基部有明亮的紫色斑纹和紫粉色振毛。不过，最引人注目的是花冠裂片异常细长、扭曲，很容易让人联想到石莲花，因此被命名为石莲花。目前还没有其他已知的南非物种开出如此艳丽的花朵。令人担忧的是，这个壮观的新物种可能濒临灭绝，因为它的栖息地所剩无几，受到了严重的人为威胁。 Brachystelma tanzaniense 是坦桑尼亚的一个物种，具有细长的花冠裂片。此外，这次转移的阻挡名 C. tanzaniensis 被降为 C. cordiloba 的异名，我们为其指定了一个讲座模式。
{"title":"Ceropegia strophanthiflora (Apocynaceae—Asclepiadoideae)—a magnificent and rare new species from South Africa at the brink of extinction","authors":"Annemarie Heiduk, D. G. Styles","doi":"10.11646/phytotaxa.632.1.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.632.1.2","url":null,"abstract":"We describe a novel species of Ceropegia (Apocynaceae-Asclepiadoideae-Ceropegieae), C. strophanthiflora, from inland of Mtubatuba in northern KwaZulu-Natal, South Africa. The new species is placed in section Chamaesiphon where it appears to be vegetatively and floristically most similar to C. rehmannii (formerly Brachystelma foetidum). Ceropegia strophanthiflora can, however, be readily distinguished from this species by its strikingly colourful greenish-yellow flowers with bright purple markings and purplish-pink vibratile hairs fringing the corolla lobe bases. Most remarkable, however, are the unusually long, slender and twisted corolla lobes much reminiscent of flowers known in Strophanthus; hence the name C. strophanthiflora. There are no other known South African species exhibiting such flamboyant flowers. Concerningly, this spectacular new species may be at the brink of extinction as only very little habitat remains which is under severe anthropogenic threat. Brachystelma tanzaniense, a species with long and slender corolla lobes from Tanzania, is transferred to Ceropegia section Chamaesiphon under the proposed new name C. dodomaensis. Moreover, the blocking name for this transfer, C. tanzaniensis, is reduced to a synonym of C. cordiloba for which we designate a lectotype.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"178 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153711","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：