Miscellaneous chromosome counts of western American plants—II

Authors

James L. Reveal, University of Maryland, College Park, and National Museum of Natural History, Smithsonian Institution, Washington, D.C.
Eloise L. Styler, Depatment of Botany, University of Maryland, College Park

Abstract

Chromosome numbers are reported for 19 species of western American plants. Reports for previously uncounted species include Nitrophila mohavensis Munz and Roos, n = 18; Eriogonum contiguum (Reveal) Reveal, n = 16; Mentzelia leucophylla Brandeg., n = 18, and M. torreyi A. Gray, n = 12; Prunus virginiana L. var. melanocarpa (A. Nels.) Sarg., n = 8; Astragalus beatleyae Barneby, n = 11; Angelica kingii (S. Wats.) Coult. and Rose, n = 22; Gilia nyensis Reveal, n = 9; and Arnica parryi A. Gray var. sonnei (Greene) Cronq. in Ferris n = 19. New ploidy levels are reported in Oxystylis lutea Torr. and Frém., n = 10; Lupinus aridus Dougl. ex Lindl., n = 12; and Castilleja martini Abrams var. clokeyi (Pennell) N. H. Holmgren, n = 12. Seven additional counts are given which confirm those published by others. These are Opuntia chlorotica Engelm. and Bigel., n = 11; Eriogonum inflatum Torr. and Frém. var. inflatum, n = 16, E. trichopes Torr., n = 16, and E. bifurcatum Reveal, n = 20; Stanleya pinnata (Pursh) Britt. var. inyoensis (Munz and Roos) Reveal, n = 28; Lupinus argenteus Pursh, n = 24; and Castilleja viscidula A. Gray, n = 12.

Recommended Citation

Reveal, James L. and Styler, Eloise L. (1973) "Miscellaneous chromosome counts of western American plants—II," Great Basin Naturalist: Vol. 33: No. 1, Article 2.
Available at: https://scholarsarchive.byu.edu/gbn/vol33/iss1/2