RHODODENDRON ASTROPHORUM (ERICACEAE, RHODODENDRON SECT. SCHISTANTHE), A NEW MICRO-ENDEMIC SPECIES FROM CENTRAL PALAWAN, PHILIPPINES
Keywords:Euvireya, Malesia, Taxonomy, Ultramafic, Vireya
A new micro-endemic species of Rhododendron is described and illustrated from botanical expeditions to the Victoria-Anepahan Mountain Range on the island of Palawan. It closely resembles Rhododendron wilkiei but differs in having leaves with laminae that are narrowly elliptic-oblanceolate, have adaxially indistinct venation, and are arranged in 4–8 active and mostly terminal pseudowhorls along the length of the stem; bracts without scales on the margin; yellow flowers with a red corolla tube interior that is densely hairy towards the base; and hairy anther filament bases. Morphological and geographical data place the species in Rhododendron sect. Schistanthe. The new species, together with a first record of Rhododendron vidalii on Palawan as part of this research, represent the tenth and eleventh members of this genus recorded from the island. A revised key to the Palawan species of Rhododendron is provided.
Copyright (c) 2023 M. N. Tamayo, A. B. Marcos-Langbao, R. A. A. Bustamante, Y. P. Ang, D. C. Schubert, W. A. Mustaqim, P. W. Fritsch, A. S. Robinson
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