A new Philippine species of Ridsdalea (Rubiaceae, Ixoroideae) from karst vegetation in Palawan

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
Naturalis Biodiversity Center
Journal Title
Journal ISSN
Volume Title
Language
en
Date
2022
Authors
Bustamante RAA
Pelser PB
Abstract

Ridsdalea philippinensis (Rubiaceae), a new species from the karst forest in El Nido (Palawan, Philippines), is described and illustrated. It is unique among Malesian Ridsdalea species in having a corolla tube that is distinctly inflated at the apex, a character state also displayed by R. sootepensis and R. thailandica from Laos and Thailand. Amongst others, R. philippinensis, however, differs from both of these species in having smaller flowers and anthers that do not emerge from the corolla tube. An updated key for Philippine Ridsdalea is also presented

Description
Citation
Bustamante RAA, Pelser PB (2022). A new Philippine species of Ridsdalea (Rubiaceae, Ixoroideae) from karst vegetation in Palawan. Blumea - Biodiversity, Evolution and Biogeography of Plants.
Keywords
El Nido-Taytay Managed Resource Protected Area, Gardenieae, Malesia, Philippines, Ridsdalea, Rubiaceae
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::31 - Biological sciences::3104 - Evolutionary biology::310411 - Plant and fungus systematics and taxonomy
Fields of Research::31 - Biological sciences::3108 - Plant biology
Rights
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