Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae

In the process of studying the species Cryptantha muricata and its varieties, we discovered a unique taxon of the genus that resembles C. muricata but differs in having a mostly densely white-strigose stem vestiture (sometimes with spreading trichomes) and tuberculate to muricate nutlets with often...

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Main Authors: Michael G. Simpson, Lee M. Simpson, James M. André
Format: Article
Language:English
Published: Pensoft Publishers 2024-12-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/138635/download/pdf/
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author Michael G. Simpson
Lee M. Simpson
James M. André
author_facet Michael G. Simpson
Lee M. Simpson
James M. André
author_sort Michael G. Simpson
collection DOAJ
description In the process of studying the species Cryptantha muricata and its varieties, we discovered a unique taxon of the genus that resembles C. muricata but differs in having a mostly densely white-strigose stem vestiture (sometimes with spreading trichomes) and tuberculate to muricate nutlets with often whitish tubercles that are, in comparison with typical C. muricata, larger, with a wider base and more pointed apex, and more densely spaced. We believe this form to be different enough to describe as a new species, Cryptantha acrimuricata. This new species occurs in southwestern North America: in California and Arizona of the United States and in northern Baja California, Mexico. It occurs in mid- to relatively high elevation mountain regions of mostly desert transition/escarpment in the Transverse and Peninsular Ranges, in the Sonoran and Mohave Deserts, and with some populations scattered in the southern Sierra Nevada. We believe this new species to be closely related to C. clokeyi, C. martirensis, C. muricata, and possibly C. hooveri, of Cryptantha series Muricatae. Detailed molecular phylogenetic are needed to better establish their interrelationships.
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spelling doaj-art-e5c25cdd4bb14b93ad9dd77a1f8c25242025-01-01T08:31:57ZengPensoft PublishersPhytoKeys1314-20032024-12-0125019321310.3897/phytokeys.250.138635138635Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series MuricataeMichael G. Simpson0Lee M. Simpson1James M. André2San Diego State UniversitySan Diego State UniversityUniversity of CaliforniaIn the process of studying the species Cryptantha muricata and its varieties, we discovered a unique taxon of the genus that resembles C. muricata but differs in having a mostly densely white-strigose stem vestiture (sometimes with spreading trichomes) and tuberculate to muricate nutlets with often whitish tubercles that are, in comparison with typical C. muricata, larger, with a wider base and more pointed apex, and more densely spaced. We believe this form to be different enough to describe as a new species, Cryptantha acrimuricata. This new species occurs in southwestern North America: in California and Arizona of the United States and in northern Baja California, Mexico. It occurs in mid- to relatively high elevation mountain regions of mostly desert transition/escarpment in the Transverse and Peninsular Ranges, in the Sonoran and Mohave Deserts, and with some populations scattered in the southern Sierra Nevada. We believe this new species to be closely related to C. clokeyi, C. martirensis, C. muricata, and possibly C. hooveri, of Cryptantha series Muricatae. Detailed molecular phylogenetic are needed to better establish their interrelationships.https://phytokeys.pensoft.net/article/138635/download/pdf/
spellingShingle Michael G. Simpson
Lee M. Simpson
James M. André
Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
PhytoKeys
title Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
title_full Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
title_fullStr Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
title_full_unstemmed Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
title_short Cryptantha acrimuricata (Boraginaceae), a distinctive new taxon of series Muricatae
title_sort cryptantha acrimuricata boraginaceae a distinctive new taxon of series muricatae
url https://phytokeys.pensoft.net/article/138635/download/pdf/
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