Date of Award:
5-1-1983
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Biology
Department name when degree awarded
Life Sciences:Biology
Committee Chair(s)
Mary E. Barkworth
Committee
Mary E. Barkworth
Committee
Ivan G. Palmblad
Committee
Douglas R. Dewey
Abstract
Morphological studies of populations in Utah, Idaho, Arizona, and Colorado belonging to three taxa of Leymus Hochst. revealed that L. salinae (M. E. Jones) A. Love is comprised of two subspecies, subsp. salinae and subsp. salmonis (C. L. Hitchcock) R. J. Atkins comb. nov. Leymus ambiguus (Vasey & Scribner) D. R. Dewey is distinct from these two taxa and occurs in the Colorado Front Range. Tetraploid (2n=28) and octoploid (2n=56) races occur in both L. salinae subsp. salinae and L. ambiguus, but only tetraploids were found among L. salinae subsp. salmonis. A naturally occurring hexaploid (2n=42) was discovered in one population of L. salinae subsp. salinae.
Recommended Citation
Atkins, Riley J., "A Taxonomic Study of Leymus ambiguus and L. salinae (Poaceae)" (1983). Biology. 498.
https://digitalcommons.usu.edu/etd_biology/498
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