A novel species of Nama (Namaceae) from northern Arizona, U.S.A.
DOI :
https://doi.org/10.17348/jbrit.v18.i1.1335Mots-clés :
Boraginaceae, Namaceae, Nama, Arizona, endemic, plantRésumé
Nama arizonica R.A. Crawford & G. Rink (Namaceae) is a novel Nama, restricted to Coconino and Navajo cos, northern Arizona. Previously, these plants have been determined as N. dichotoma (Ruiz & Pav.) Choisy, to which it may be most closely related, though it has morphological similarities to N. hispida as well. We present images of plants in the field, seeds, vestiture, and chromosomes.
Références
BACON, J.D. 1974. Chromosome numbers and taxonomic notes in the genus Nama (Hydrophylaceae) Brittonia 26(2):101–105.
BACON, J.D. 1984. Chromosome numbers and taxonomic notes in the genus Nama (Hydrophylaceae) II. Sida 10:269–275.
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CHANCE, G.D. & J.D. BACON. 1984. Systematic implications of seed coat morphology in Nama (Hydrophyllaceae). Amer. J. Bot. 71:829–842.
CRAWFORD, R. 2015. A flora of the Little Colorado River Gorge, 2015. M.S. Thesis, Northern Arizona University, Flagstaff, U.S.A.
HITCHCOCK, C.L. 1933. A taxonomic study of the genus Nama. Amer. J. Bot. 20(6):415–430; 518–534.
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TAYLOR, S.E. 2012. Molecular systematics and the origins of gypsophily in Nama L. (Boraginaceae). Ph.D. diss. University of Texas at Austin, U.S.A.
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Ce travail est disponible sous licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification 4.0 International.
