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TWO NEW SPECIES OF ANDEAN BEGONIA (BEGONIACEAE)

Published online by Cambridge University Press:  01 March 2016

M. C. Tebbitt
M. C. Tebbitt*
Affiliation:
Department of Biological and Environmental Sciences, California University of Pennsylvania, California, PA 15419-1394, USA. E-mail: [email protected]
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Abstract

Two new species of Begonia (Begoniaceae) from Andean South America are described and illustrated. Begonia heliantha Tebbitt is classified in B. sect. Eupetalum and is known from the Puno Region of Peru and has also been tentatively identified from photographs taken in La Paz Department of Bolivia. Begonia urubambensis Tebbitt is affiliated with a group of species currently classified in B. sect. Knesebeckia. This group of species is informally named here the B. acerifolia group. Begonia sect. Knesebeckia is polyphyletic since the B. acerifolia group does not include the type species of the section. Ongoing research aims to recircumscribe this section. Begonia urubambensis is not assigned to a section given the changes needed to the sectional classification system. Begonia urubambensis is a narrow endemic of La Convención Province (Cusco Region) of Peru. Begonia heliantha is assigned the IUCN category of Data Deficient (DD), while B. urubambensis is assigned the IUCN category of Vulnerable (VU-D2).

Keywords

Begonia chrysanthaBegonia erythrocarpaBegonia pearceiBegonia sect. EupetalumBegonia sect. KnesebeckiaBegonia serotinaBoliviaPeruIUCN
Type
Articles
Information
Edinburgh Journal of Botany , Volume 73 , Issue 1 , March 2016 , pp. 143 - 152
Copyright
Copyright © Trustees of the Royal Botanic Garden Edinburgh 2016 

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