Blumea - Biodiversity, Evolution and Biogeography of Plants最新文献_第9页

A revision of the genus Croton (Euphorbiaceae) in Sumatra (Indonesia) 印度尼西亚苏门答腊岛大戟科巴豆属的订正

Blumea - Biodiversity, Evolution and Biogeography of Plants Pub Date : 1900-01-01 DOI: 10.3767/blumea.2023.68.01.01

J. Beyer, H. Esser, M. Eurlings, P. V. Van Welzen

{"title":"A revision of the genus Croton (Euphorbiaceae) in Sumatra (Indonesia)","authors":"J. Beyer, H. Esser, M. Eurlings, P. V. Van Welzen","doi":"10.3767/blumea.2023.68.01.01","DOIUrl":"https://doi.org/10.3767/blumea.2023.68.01.01","url":null,"abstract":"\u0000 Croton (Euphorbiaceae) is a very large genus of over 1200 species of herbs, shrubs and trees occurring mainly in the (sub)tropics. The major diversity of Croton is within the Neotropics; and there are comparatively few species in South-East Asia. This contribution provides a revision of Croton from the Sumatran region in Indonesia, including descriptions and a determination key. In total sixteen species are recognized for Sumatra, including four species new to science, C. beccarii, C. scalaeus, C. simalurensis, and C. viridifolius. Two new synonyms and lectotypification of numerous names are also included. Besides a taxonomic treatment, a molecular analysis, using the nuclear ribosomal internal transcribed spacer (ITS), based on former data extended with Sumatran species, was performed to create a phylogeny that places the Sumatran species in a phylogenetic context. In total 13 new sequences were created, which were combined with 56 sequences obtained from GenBank. The results from the phylogenetic analysis, based on Bayesian inference, are in line with the phylogeny as published for mainly the Australian species of Croton by Van Ee et al. (2015).\u0000","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132514222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoideae) from the island of Halmahera, the Moluccas, Indonesia 文章题目凤尾莲属一新种。(露兜树科;产自印度尼西亚摩鹿加群岛Halmahera岛

Blumea - Biodiversity, Evolution and Biogeography of Plants Pub Date : 1900-01-01 DOI: 10.3767/blumea.2022.67.02.06

A. P. Keim, W. Sujarwo, D. Sahroni

引用次数: 0

The Malesian species of Dalechampia (Euphorbiaceae)

Blumea - Biodiversity, Evolution and Biogeography of Plants Pub Date : 1900-01-01 DOI: 10.3767/blumea.2022.67.01.06

P. V. Van Welzen, E. Winkel

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Hoya buntokensis (Apocynaceae, Asclepiadoideae), a new myrmecophytic species and Hoya wallichii subsp. tenebrosa, a new subspecies from Borneo (Kalimantan, Indonesia) 麻瓜科麻瓜亚科麻瓜一新种及麻瓜亚科麻瓜亚种。印度尼西亚加里曼丹婆罗洲一新亚种拟步甲

Blumea - Biodiversity, Evolution and Biogeography of Plants Pub Date : 1900-01-01 DOI: 10.3767/blumea.2021.66.03.06

S. Rahayu, M. Rodda

{"title":"Hoya buntokensis (Apocynaceae, Asclepiadoideae), a new myrmecophytic species and Hoya wallichii subsp. tenebrosa, a new subspecies from Borneo (Kalimantan, Indonesia)","authors":"S. Rahayu, M. Rodda","doi":"10.3767/blumea.2021.66.03.06","DOIUrl":"https://doi.org/10.3767/blumea.2021.66.03.06","url":null,"abstract":"\u0000 We describe a new Hoya species from Central Kalimantan, H. buntokensis, and a new subspecies of H. wallichii from West Kalimantan, Hoya wallichii subsp. tenebrosa. Hoya buntokensis is part of a group of four species that form specialised leaf structures harbouring ants (here defined as megadomatia), and it is most similar to H. undulata. Hoya buntokensis differs from H. undulata in lamina margin (flat vs undulate); shape of corona lobes outer processes (fan shaped vs elliptic), and in the pollinarium morphology (corpusculum larger than pollinia vs corpusculum smaller than pollinia). Both H. wallichii subsp. wallichii and H. wallichii subsp. tenebrosa are slender plants with ovate to oblong, thinly coriaceous glabrous leaves, slender peduncles with 1 or 2 flowers open at a time, and broadly campanulate corollas. Hoya wallichii subsp. tenebrosa differs from H. wallichii subsp. wallichii in corolla colour (dark purple with a paler edge vs white-cream), corona lobe shape and surface (broadly elliptic, spreading and with a minute inner process, almost black with a velvety surface vs kidney-shaped, erect and with a well-developed acuminate inner process, purple with a shiny surface).\u0000","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116778602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2