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Abstract Detail


Abbott, Claire [1], Simpson, Michael [2].

Taxonomy of the Cryptantha clevelandii complex (Boraginaceae).

Cryptantha clevelandii is a species of subtribe Amsinckiinae of the Boraginaceae. This species has recently been confused with Cryptantha hispidissima, and has been treated with various infraspecies. Here we present preliminary results of a morphometric study of the complex, measuring features of the nutlet, fruit angle, relative gynobase+style length, and trichome type. Boxplot and Anova statistical analyses demonstrate considerable overlap between Cryptantha clevelandii and C. hispidissima, in a number of features. However, there is a tendency for C. hispidissima to have a greater relative style length, a greater fruit angle, and a much greater percentage of spreading versus appressed inflorescence trichomes. Cryptantha abramsii and C. brandegeei show considerable similarity to C. clevelandii. However, C. brandegeei is consistent in some characters with C. hispidissima. We conclude that C. abramsii should be treated as a synonym of C. clevelandii, but that C. brandegeei shows some distinctiveness and should perhaps be taxonomically treated as a variety of C. clevelandiiCryptantha c. var. florosa shows some similarity with C. clevelandii and some with C. hispidissima. Its status at present is uncertain.

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Related Links:
Amsinckiinae Web Site

1 - San Diego State University, Department of Biology, San Diego, CA, 92182, USA
2 - San Diego State University, Department Of Biology, San Diego, California, 92182, USA


Presentation Type: Poster
Session: P, Taxonomy
Location: Grand Ballroom - Exhibit Hall/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PTO001
Abstract ID:375
Candidate for Awards:None

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