Petalidium sesfonteinense (Acanthaceae), a new species from the Kaokoveld, Namibia

Show simple item record Swanepoel, Wessel Manzitto-Tripp, Erin A. 2022-12-13T12:49:30Z 2022-12-13T12:49:30Z 2022-06-08
dc.description.abstract Petalidium sesfonteinense, previously most commonly confused with the widespread P. variabile, is here described as a new species. It is only known from the Sesfontein area in the Kaokoveld Centre of Endemism, northwestern Namibia, where it grows on hillsides and along ephemeral riverbeds. Diagnostic characters for P. sesfonteinense include the short, stout trunk on older plants, white bark that peels on the younger branches in long, narrow strips, dendritic trichomes on vegetative parts, flowers in short dichasia with acute oblanceolate bracts, flowers with externally glabrous corollas, corolla lobes that are pink, magenta, apricot or cream and with the two upper lobes connate towards the base and the lower lobe with two yellow spots near the base. A comparison of some of the more prominent morphological features to differentiate Petalidium sesfonteinense from close relatives is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Least Concern (LC) is recommended for the new species. en_US
dc.description.department Plant Production and Soil Science en_US
dc.description.librarian dm2022 en_US
dc.description.uri en_US
dc.identifier.citation Swanepoel, W. & Manzitto-Tripp, E.A. (2022): Petalidium sesfonteinense (Acanthaceae), a new species from the Kaokoveld, Namibia. Phytotaxa 549 (2): 127-135, DOI: 10.11646/phytotaxa.549.2.1. en_US
dc.identifier.issn 1179-3163 (online)
dc.identifier.issn 1179-3155 (print)
dc.identifier.other 10.11646/phytotaxa.549.2.1
dc.language.iso en en_US
dc.publisher Magnolia Press en_US
dc.rights © 2022 Magnolia Press. Licensed under Creative Commons Attribution-N.C. 4.0 International en_US
dc.subject Desert en_US
dc.subject Endemism en_US
dc.subject Flora en_US
dc.subject Kaokoveld en_US
dc.subject Ruellieae en_US
dc.subject Sesfontein en_US
dc.subject Taxonomy en_US
dc.title Petalidium sesfonteinense (Acanthaceae), a new species from the Kaokoveld, Namibia en_US
dc.type Article en_US

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