A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania

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, s...

Full description

Bibliographic Details
Main Authors:	Marshall, Andrew R., Couvreur, Thomas L.P., Summers, Abigail L., Deere, Nicolas J., Luke, W.R. Quentin, Ndangalasi, Henry J., Sparrow, Sue, Johnson, David M.
Format:	Online
Language:	English
Published:	Pensoft Publishers 2016
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4956929/

id	pubmed-4956929
recordtype	oai_dc
spelling	pubmed-49569292016-08-03 A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania Marshall, Andrew R. Couvreur, Thomas L.P. Summers, Abigail L. Deere, Nicolas J. Luke, W.R. Quentin Ndangalasi, Henry J. Sparrow, Sue Johnson, David M. Research Article 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 Polyceratocarpus 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 Polyceratocarpus 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. Pensoft Publishers 2016-06-01 /pmc/articles/PMC4956929/ /pubmed/27489479 http://dx.doi.org/10.3897/phytokeys.63.6262 Text en Andrew R. Marshall, Thomas L.P. Couvreur, Abigail L. Summers, Nicolas J. Deere, W.R. Quentin Luke, Henry J. Ndangalasi, Sue Sparrow, David M. Johnson http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Marshall, Andrew R. Couvreur, Thomas L.P. Summers, Abigail L. Deere, Nicolas J. Luke, W.R. Quentin Ndangalasi, Henry J. Sparrow, Sue Johnson, David M.
spellingShingle	Marshall, Andrew R. Couvreur, Thomas L.P. Summers, Abigail L. Deere, Nicolas J. Luke, W.R. Quentin Ndangalasi, Henry J. Sparrow, Sue Johnson, David M. A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
author_facet	Marshall, Andrew R. Couvreur, Thomas L.P. Summers, Abigail L. Deere, Nicolas J. Luke, W.R. Quentin Ndangalasi, Henry J. Sparrow, Sue Johnson, David M.
author_sort	Marshall, Andrew R.
title	A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
title_short	A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
title_full	A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
title_fullStr	A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
title_full_unstemmed	A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania
title_sort	new species in the tree genus polyceratocarpus (annonaceae) from the udzungwa mountains of tanzania
description	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 Polyceratocarpus 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 Polyceratocarpus 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.
publisher	Pensoft Publishers
publishDate	2016
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4956929/
_version_	1613613415900643328

A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania

Similar Items