Pub Date : 2024-03-21DOI: 10.11646/phytotaxa.641.4.4
M. A. C. Bucay, D. Tandang, Rosario R. Rubite, Edison JALLORES JR., Kuo-Fang Chung
Begonia tanauanensis is a newly described endemic species in B. sect. Baryandra from Tanauan City, Batangas, southern Luzon, Philippines. Morphological data shows this species resembles B. chingipengii, a species from eastern Luzon as both species have light pink flowers, fleshy green lamina, and boat-shaped bracts. However, B. tanauanensis does not have the prominent white midrib and veins in the adaxial leaf surface, ciliate hairs on leaf margin, strongly keeled stipules and tomentose hairs on the abaxial leaf surface and petioles of B. chingipengii. The plants were observed to have a restricted and severely fragmented distribution. Unfortunately, these observed populations are also affected by human activities and threat of volcanic activity of the nearby Taal Volcano. Because of these threats, we provisionally assess the species as “Critically Endangered” (CR) following the IUCN Red List Categories and Criteria.
Begonia tanauanensis 是 B. sect.Baryandra 中的一个新描述的特有种。形态学数据显示，该物种与吕宋岛东部的一个物种 B. chingipengii 相似，都具有淡粉色花朵、肉质绿色薄片和船形苞片。不过，B. tanauanensis 没有 B. chingipengii 正面突出的白色中脉和叶脉、叶缘上的纤毛、强龙骨状托叶以及背面和叶柄上的绒毛。据观察，这些植物的分布范围很窄，且严重支离破碎。不幸的是，这些观察到的种群还受到人类活动的影响以及附近塔尔火山活动的威胁。鉴于这些威胁，根据世界自然保护联盟（IUCN）红色名录的类别和标准，我们暂时将该物种评定为 "极度濒危"（CR）。
{"title":"A new Begonia species (sect. Baryandra, Begoniaceae) from Batangas Province, Luzon Island, Philippines","authors":"M. A. C. Bucay, D. Tandang, Rosario R. Rubite, Edison JALLORES JR., Kuo-Fang Chung","doi":"10.11646/phytotaxa.641.4.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.4","url":null,"abstract":"Begonia tanauanensis is a newly described endemic species in B. sect. Baryandra from Tanauan City, Batangas, southern Luzon, Philippines. Morphological data shows this species resembles B. chingipengii, a species from eastern Luzon as both species have light pink flowers, fleshy green lamina, and boat-shaped bracts. However, B. tanauanensis does not have the prominent white midrib and veins in the adaxial leaf surface, ciliate hairs on leaf margin, strongly keeled stipules and tomentose hairs on the abaxial leaf surface and petioles of B. chingipengii. The plants were observed to have a restricted and severely fragmented distribution. Unfortunately, these observed populations are also affected by human activities and threat of volcanic activity of the nearby Taal Volcano. Because of these threats, we provisionally assess the species as “Critically Endangered” (CR) following the IUCN Red List Categories and Criteria.","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":"140223465","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.641.4.3
P. Karis, Robert J. Mckenzie
As part of a taxonomic reassessment of species that were classified in Berkheya series Rigidae in the most recent monograph of Berkheya, the type material for Berkheya rigida and its putative heterotypic synonyms is reassessed. The original material for the basionym, Stobaea rigida, is heterospecific. Therefore, a second-step lectotype is designated consistent with predominant usage of the name Berkheya rigida. The name Apuleia rigida and its replacement name Stobaea gaertneri apply to a conspicuously radiate species and are excluded from the synonymy of Berkheya rigida. The morphological variability of Berkheya rigida is discussed.
{"title":"Second-step lectotypification of Stobaea rigida and reassessment of heterotypic synonyms of Berkheya rigida (Asteraceae, Arctotideae)","authors":"P. Karis, Robert J. Mckenzie","doi":"10.11646/phytotaxa.641.4.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.3","url":null,"abstract":"As part of a taxonomic reassessment of species that were classified in Berkheya series Rigidae in the most recent monograph of Berkheya, the type material for Berkheya rigida and its putative heterotypic synonyms is reassessed. The original material for the basionym, Stobaea rigida, is heterospecific. Therefore, a second-step lectotype is designated consistent with predominant usage of the name Berkheya rigida. The name Apuleia rigida and its replacement name Stobaea gaertneri apply to a conspicuously radiate species and are excluded from the synonymy of Berkheya rigida. The morphological variability of Berkheya rigida is discussed.","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":"140223110","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.641.4.6
Xinyu Chen, HUA-CHUAN Zhang, JIN-YUE Yang
A new early Permian Medullosa (Pteridospermatophyta) is described based on a moderately well-preserved sample from Xishan Area in Beijing, North China. Callipteris seshufenensis Chen sp. nov. represents the first record of genus Callipteris in the early Permian period in Beijing region. Callipteris seshufenensis has a remarkable morphology characterized by a narrow midvein with distinct transverse stripes, small pinnules with 2–3 lateral branches directly connected with pinna-rachis except for the rounded-obtuse apex of pinnule and costule divided more than three times (sometimes more than five times). Together with coeval callipterid fossils recorded from the North China plate and the Siberian plate, the present discovery suggests that the migration route of callipterids in China extended from West China to Northeast China.
{"title":"A new fossil species of Callipteris (Callipteridae) in the Early Permian from the Xishan Area in Beijing, North China","authors":"Xinyu Chen, HUA-CHUAN Zhang, JIN-YUE Yang","doi":"10.11646/phytotaxa.641.4.6","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.6","url":null,"abstract":"A new early Permian Medullosa (Pteridospermatophyta) is described based on a moderately well-preserved sample from Xishan Area in Beijing, North China. Callipteris seshufenensis Chen sp. nov. represents the first record of genus Callipteris in the early Permian period in Beijing region. Callipteris seshufenensis has a remarkable morphology characterized by a narrow midvein with distinct transverse stripes, small pinnules with 2–3 lateral branches directly connected with pinna-rachis except for the rounded-obtuse apex of pinnule and costule divided more than three times (sometimes more than five times). Together with coeval callipterid fossils recorded from the North China plate and the Siberian plate, the present discovery suggests that the migration route of callipterids in China extended from West China to Northeast China.","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":"140221963","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.641.4.1
Robert J. Mckenzie, A. Dold
Crassothonna moniliformis is described as a new species from the Eastern Cape province, South Africa. The species is a prostrate, succulent-leaved perennial herb distinguished from Crassothonna capensis in having slender, weak, trailing, distantly branched stems, with nodal adventitious roots developing precociously, forming diffuse patches to ±50 cm diam., with erect to ascending, usually red-purple, globose-obovoid to obovoid to subclavate leaves 10–25 mm long, and a more slender synflorescence bearing fewer capitula (1–4 per flowering shoot) with fewer ray florets (7–9) and functionally staminate peripheral disc florets. The species is geographically localised, with the known Extent of Occurrence and Area of Occupancy <10 km2, and is habitat-restricted, growing in shallow sandy sediments overlying exposed sandstone pavements among coastal thicket. The single known population is threatened by sand mining and informal housing encroachment. Based on the IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU – D2) is recommended.
{"title":"Crassothonna moniliformis (Asteraceae, Senecioneae), a new species from the Albany Centre of floristic endemism, South Africa","authors":"Robert J. Mckenzie, A. Dold","doi":"10.11646/phytotaxa.641.4.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.1","url":null,"abstract":"Crassothonna moniliformis is described as a new species from the Eastern Cape province, South Africa. The species is a prostrate, succulent-leaved perennial herb distinguished from Crassothonna capensis in having slender, weak, trailing, distantly branched stems, with nodal adventitious roots developing precociously, forming diffuse patches to ±50 cm diam., with erect to ascending, usually red-purple, globose-obovoid to obovoid to subclavate leaves 10–25 mm long, and a more slender synflorescence bearing fewer capitula (1–4 per flowering shoot) with fewer ray florets (7–9) and functionally staminate peripheral disc florets. The species is geographically localised, with the known Extent of Occurrence and Area of Occupancy <10 km2, and is habitat-restricted, growing in shallow sandy sediments overlying exposed sandstone pavements among coastal thicket. The single known population is threatened by sand mining and informal housing encroachment. Based on the IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU – D2) is recommended.","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":"140221396","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.641.4.5
M. Boudrie, G. Rouhan, Valéry Malécot, A. Troìa
This paper deals with typification of three species names in Isoetes described from France: the lectotype previously designated for I. delalandei J.Lloyd is here superseded by another lectotype according to new evidence, and lectotypes are designated for I. echinospora Durieu and I. tenuissima Boreau. Selected specimens are preserved at ANG for I. delalandei, and at P for the two others. Scanning Electron Microscope (SEM) images of the spores, known to provide important routine characters in Isoetes, were acquired from the types, and information about the loci classici are provided. Isoetes echinospora and I. tenuissima have currently disappeared from their loci classici.
本文涉及从法国描述的 Isoetes 中三个种名的分型：根据新的证据，以前为 I. delalandei J. Lloyd 指定的模式标本在此被另一个模式标本取代，为 I. echinospora Durieu 和 I. tenuissima Boreau 指定了模式标本。delalandei 的选定标本保存在 ANG，另外两个标本保存在 P。从模式标本中获取了孢子的扫描电子显微镜（SEM）图像，这些图像提供了 Isoetes 的重要常规特征，并提供了有关分类位点的信息。Isoetes echinospora 和 I. tenuissima 目前已从其分类位点中消失。
{"title":"On the typification of three Isoetes names (Isoetaceae, Lycopodiopsida) described from France","authors":"M. Boudrie, G. Rouhan, Valéry Malécot, A. Troìa","doi":"10.11646/phytotaxa.641.4.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.4.5","url":null,"abstract":"This paper deals with typification of three species names in Isoetes described from France: the lectotype previously designated for I. delalandei J.Lloyd is here superseded by another lectotype according to new evidence, and lectotypes are designated for I. echinospora Durieu and I. tenuissima Boreau. Selected specimens are preserved at ANG for I. delalandei, and at P for the two others. Scanning Electron Microscope (SEM) images of the spores, known to provide important routine characters in Isoetes, were acquired from the types, and information about the loci classici are provided. Isoetes echinospora and I. tenuissima have currently disappeared from their loci classici.","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":"140221791","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 : 2024-03-20DOI: 10.11646/phytotaxa.641.3.2
Heitor Lisboa DA FONSECA, Amélia CARLOS TULER, Patricia DA ROSA, Joelcio Freitas, Elton John de Lírio
Plinia renatiana is a species endemic to the state of Espírito Santo (ES) and has been assessed as endangered (EN). The species was described in the 1990s based on two samples from the municipality of Linhares. Subsequently, other materials were identified as belonging to the species. However, this set of materials exhibits heterogeneous morphology, which raises doubts about the correct name application. Therefore, it was necessary to expand the species description by incorporating new field-collected data and analyzing a greater number of herbarium specimens. In this study, we analyzed materials deposited in herbaria identified as P. renatiana, reviewed the literature, and conducted field surveys. Based on the collected data, we have expanded the morphological description and reassessed its extinction risk. In addition to the morphological description, taxonomic comments, phenology, a distribution map, and illustrations are provided. In our reassessment, the species was categorized as EN (A2c; B1(i,iii,v) + 2ab(ii,iii,v)), with changes to the criteria used in the 2012 assessment. Despite the review and inclusion of new data, the species has remained in the same threat category in which it was assessed more than a decade ago, underscoring the need for conservation efforts.
Plinia renatiana是圣埃斯皮里图州（ES）的特有物种，已被评估为濒危物种（EN）。20 世纪 90 年代，根据林哈雷斯市的两个样本对该物种进行了描述。随后，其他材料也被确认属于该物种。然而，这组材料呈现出不同的形态，令人怀疑其名称是否正确。因此，有必要通过纳入新的野外采集数据和分析更多标本馆标本来扩展物种描述。在这项研究中，我们分析了标本馆中保存的被认定为 P. renatiana 的材料，查阅了文献，并进行了实地调查。根据收集到的数据，我们扩充了形态描述，并重新评估了其灭绝风险。除了形态描述外，我们还提供了分类评论、物候学、分布图和插图。在我们的重新评估中，该物种被归类为EN（A2c；B1（i,iii,v）+ 2ab（ii,iii,v）），与2012年评估中使用的标准有所变化。尽管进行了审查并纳入了新数据，但该物种仍处于十多年前评估时的威胁类别，这凸显了保护工作的必要性。
{"title":"Redescription and reevaluation of the extinction risk of Plinia renatiana (Myrtaceae), a species endemic to the state of Espírito Santo, Brazil","authors":"Heitor Lisboa DA FONSECA, Amélia CARLOS TULER, Patricia DA ROSA, Joelcio Freitas, Elton John de Lírio","doi":"10.11646/phytotaxa.641.3.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.3.2","url":null,"abstract":"Plinia renatiana is a species endemic to the state of Espírito Santo (ES) and has been assessed as endangered (EN). The species was described in the 1990s based on two samples from the municipality of Linhares. Subsequently, other materials were identified as belonging to the species. However, this set of materials exhibits heterogeneous morphology, which raises doubts about the correct name application. Therefore, it was necessary to expand the species description by incorporating new field-collected data and analyzing a greater number of herbarium specimens. In this study, we analyzed materials deposited in herbaria identified as P. renatiana, reviewed the literature, and conducted field surveys. Based on the collected data, we have expanded the morphological description and reassessed its extinction risk. In addition to the morphological description, taxonomic comments, phenology, a distribution map, and illustrations are provided. In our reassessment, the species was categorized as EN (A2c; B1(i,iii,v) + 2ab(ii,iii,v)), with changes to the criteria used in the 2012 assessment. Despite the review and inclusion of new data, the species has remained in the same threat category in which it was assessed more than a decade ago, underscoring the need for conservation efforts.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140226583","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 : 2024-03-20DOI: 10.11646/phytotaxa.641.3.6
Erick Raynalta, Muhammad Rifqi Hariri, A. S. D. Irsyam
N/A
不适用
{"title":"Cyrtosperma hayii (Araceae, Lasioideae), a unique new species with downward-pointing spines from Southwest Papua Province, Indonesia","authors":"Erick Raynalta, Muhammad Rifqi Hariri, A. S. D. Irsyam","doi":"10.11646/phytotaxa.641.3.6","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.3.6","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140225842","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 : 2024-03-20DOI: 10.11646/phytotaxa.641.3.3
İsmai̇l Eker, M. Sağıroğlu
Gladiolus adanus is introduced to the scientific world as a new species from Adana/Tufanbeyli/Türkiye. In this study, description and illustration, diagnostic morphological characters, habitat, distribution, ecological characteristics, conservation status, seed micromorphological characters (LM and SEM) and comparisons with close species are given.
{"title":"Gladiolus adanus (Iridaceae, Crocoideae), a new species from Türkiye","authors":"İsmai̇l Eker, M. Sağıroğlu","doi":"10.11646/phytotaxa.641.3.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.3.3","url":null,"abstract":"Gladiolus adanus is introduced to the scientific world as a new species from Adana/Tufanbeyli/Türkiye. In this study, description and illustration, diagnostic morphological characters, habitat, distribution, ecological characteristics, conservation status, seed micromorphological characters (LM and SEM) and comparisons with close species are given.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140226773","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 : 2024-03-20DOI: 10.11646/phytotaxa.641.3.1
C. Vila-Viçosa, Iúri Frias, Francisco Vázquez
The genus Quercus is widely known for its ability to hybridize among sympatric species, especially inside the same Section. The Iberian Peninsula is a major phylogeographic hotspot for oak diversity, with almost all possible combinations of hybrids already described inside sect. Quercus. In this work we present the remaining hybrid not yet described among the Iberian white oaks; we found it in one of the few areas (in the Southern Iberian Peninsula) where both parents (the Algerian oak, Q. canariensis, and the Lusitanian dwarf oak, Q. lusitanica) grow sympatrically. We provide a description of this nothotaxon (which we named Quercus ×gaonae) based on morphological characters related to leaf shape and trichome analysis. This work emphasizes the practice of natural history and encourages botanists to keep up their work on describing plant diversity in a major hotspot like the Mediterranean Basin.
{"title":"Finding the last missing white oak hybrid from the Iberian Peninsula (Fagaceae, Quercus, sect. Quercus)","authors":"C. Vila-Viçosa, Iúri Frias, Francisco Vázquez","doi":"10.11646/phytotaxa.641.3.1","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.3.1","url":null,"abstract":"The genus Quercus is widely known for its ability to hybridize among sympatric species, especially inside the same Section. The Iberian Peninsula is a major phylogeographic hotspot for oak diversity, with almost all possible combinations of hybrids already described inside sect. Quercus. In this work we present the remaining hybrid not yet described among the Iberian white oaks; we found it in one of the few areas (in the Southern Iberian Peninsula) where both parents (the Algerian oak, Q. canariensis, and the Lusitanian dwarf oak, Q. lusitanica) grow sympatrically. We provide a description of this nothotaxon (which we named Quercus ×gaonae) based on morphological characters related to leaf shape and trichome analysis. This work emphasizes the practice of natural history and encourages botanists to keep up their work on describing plant diversity in a major hotspot like the Mediterranean Basin.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140225359","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 : 2024-03-20DOI: 10.11646/phytotaxa.641.3.5
THỊ-HƯƠNG Lê, THÀNH-CHUNG Nguyễn, THỊ-THUÝ-NGA TRẦN, NGỌC-ĐÀI Đỗ, N. Lý
Syzygium ngheanense (Myrtaceae), a new species from Nghe An Province, in Central Vietnam is described and illustrated. The species is most similar to S. vestitum, S. scarbum and S. levinei but differs from the three latter in having glabrous bracts and bracteoles, sparsely scabrid flower buds and hypanthia, larger sepals and petals, longer stamens and styles. Information on phenology, ecology and distribution is provided, together with a preliminary conservation status assessment and taxonomic notes for the new species and a key to distinguish it from three hairy Syzygium species in Indochina.
Syzygium ngheanense（桃金娘科）是越南中部义安省的一个新种，本报告对其进行了描述并绘制了插图。该物种与 S. vestitum、S. scarbum 和 S. levinei 最为相似，但与后三种植物的不同之处在于其苞片和小苞片无毛，花蕾和花托稀疏粗糙，萼片和花瓣较大，雄蕊和花柱较长。该报告提供了有关物候学、生态学和分布的信息，并对该新种的保护状况进行了初步评估和分类说明，还提供了将其与印度支那的三个多毛茜草种区分开来的钥匙。
{"title":"Syzygium ngheanense (Myrtaceae: Myrtoideae), a new species of Syzygium from Central Vietnam","authors":"THỊ-HƯƠNG Lê, THÀNH-CHUNG Nguyễn, THỊ-THUÝ-NGA TRẦN, NGỌC-ĐÀI Đỗ, N. Lý","doi":"10.11646/phytotaxa.641.3.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.641.3.5","url":null,"abstract":"Syzygium ngheanense (Myrtaceae), a new species from Nghe An Province, in Central Vietnam is described and illustrated. The species is most similar to S. vestitum, S. scarbum and S. levinei but differs from the three latter in having glabrous bracts and bracteoles, sparsely scabrid flower buds and hypanthia, larger sepals and petals, longer stamens and styles. Information on phenology, ecology and distribution is provided, together with a preliminary conservation status assessment and taxonomic notes for the new species and a key to distinguish it from three hairy Syzygium species in Indochina.","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140227355","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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