Date of Award
1986
Document Type
Thesis
Degree Name
Master of Science (M.S.)
Department
Biological Sciences
First Advisor
Dale McNeal
First Committee Member
Alice S. Hunter
Second Committee Member
Anne Funkhauser
Abstract
Allium sanbornii is a member of the Sanbornii alliance which is characterized by prominent ovarian crests and a single terete leaf. Because of inadequate material, previous investigators have confused species limits and lumped together taxa that are not conspecific. This investigation included herbarium and field studies and determined that previously ignored characters, such as the relative lengths of the inner and outer perianth segments, general attitude of the perianth segments and texture of the outer bulb coat, were useful in delimiting relationships within the complex. Based on these findings Allium sahbornii consists of two geographic variants: A. sahbornii var. sanbornii and A. sanbornii var. congdonii. The two other currently recognized varieties are elevated to specific status as A. jepsonii and A. tuolumnense.
Pages
39
Recommended Citation
Denison, Stella Sue. (1986). A taxonomic re-evaluation of the Allium sanbornii complex. University of the Pacific, Thesis. https://scholarlycommons.pacific.edu/uop_etds/2124
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