科研之友
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摘要
Novel phylogenetic data is used to show that the poorly-known species Begonia glandulifera and Begonia mariannensis form a clade with Begonia buddleiifolia, the type species of Begonia section Pilderia. A unique combination of characters is identified in this group and used to re-circumscribe the section to include these species, and two morphologically similar species: Begonia jenmanii, and Begonia humilliana. A new species is described herein as Begonia tepuiensis sp. nov. from a single tepui in the Amazonas State of Venezuela. A full taxonomic revision and key to the species of Begonia section Pilderia is presented and we assign all species to IUCN Red List categories.
- 出版日期2017-5-19
