Streptanthus tortuosus Subsp. Truei (Brassicaceae), a New Taxon from Nevada County, California

Ihsan A. Al-Shehbaz

doi:10.3100/025.018.0103

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Ihsan A. Al-Shehbaz¹

¹Missouri Botanical Garden, 2345 Tower Grove Avenue, St. Louis, Missouri 63110, U.S.A.; ihsan.al-shehbaz@mobot.org

Abstract

Streptanthus tortuosus subsp. truei is described, and its distinguishing characters from subsp. tortuoSUS and other infraspecific taxa synonymized are discussed. The novelty is easily distinguished from other plants of the species by having caudate-acuminate (vs. obtuse to subacute) sepals distinctly longer (vs. shorter) than the petals and acuminate (vs. acute to obtuse or rounded) cauline leaves. Limits of the genus Streptanthus and S. tortuosus are discussed.

Citation Download Citation

Ihsan A. Al-Shehbaz "Streptanthus tortuosus Subsp. Truei (Brassicaceae), a New Taxon from Nevada County, California," Harvard Papers in Botany 18(1), 13-15, (1 July 2013). https://doi.org/10.3100/025.018.0103

Published: 1 July 2013

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