Title
A New Species in the Tree Genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
Document Type
Article
Publication Date
2016
Publication Title
PhytoKeys
Volume Number
63
DOI
10.3897/phytokeys.63.6262
Abstract
Polyceratocarpus askhambryan-iringae, an endemic tree species of Annonaceae from the Udzungwa Mountains of Tanzania, is described and illustrated. The new species is identified as a member of the genus Polyceratocarpus by the combination of staminate and bisexual flowers, axillary inflorescences, subequal outer and inner petals, and multi-seeded monocarps with pitted seeds. From P. scheffleri, with which it has previously been confused, it differs in the longer pedicels, smaller and thinner petals, shorter bracts, and by generally smaller, less curved monocarps that have a clear stipe and usually have fewer seeds. Because P. askhambryan-iringae has a restricted extent of occurrence, area of occupancy, and ongoing degradation of its forest habitat, we recommend classification of it as Endangered (EN) on the IUCN Red List.
ISSN
1314-2011
First Page
63
Last Page
76
Recommended Citation
Johnson, David M.; Marshall, Andrew; Couvreur, Thomas; Summers, Abigail; Deere, Nicolas; Luke, W.R. Quentin; Ndangalasi, Henry; and Sparrow, Sue, "A New Species in the Tree Genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania" (2016). Botany & Microbiology Faculty Work. 34.
https://digitalcommons.owu.edu/bomi_pubs/34
Link Out URL
https://doi.org/10.3897/phytokeys.63.6262