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United States Department of Agriculture

Agricultural Research Service

Research Project: CONSERVATION, CHARACTERIZATION, AND GENETIC IMPROVEMENT OF SUBTROPICAL AND TROPICAL ORNAMENTAL GERMPLASM Title: New combinations in Habranthus (Amaryllidaceae) in Mexico and Southwestern U.S.A.

item Flagg, Raymond -
item Smith, Gerald -
item Meerow, Alan

Submitted to: Novon
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: March 1, 2010
Publication Date: March 18, 2010
Citation: Flagg, R.O., Smith, G.L., Meerow, A.W. 2010. New combinations in Habranthus (Amaryllidaceae) in Mexico and Southwestern U.S.A. Novon. 20:33-34

Interpretive Summary: A hither fore undetected character of the pollen bearing structures (anthers) is shown to reliably distinguish between the ornamental flower bulb genera Habranthus and Zephyranthes. New taxonomic changes are made for several species that were incorrectly assigned to the wrong genus.

Technical Abstract: New combinations in Habranthus (Amaryllidaceae) are made for four species which were previously treated as Zephyranthes (Z. arenicola Brandegee, Z. chichimeca T.M. Howard & S. Ogden, Z. conzattii Greenm., and Z. longifolia Hemsl.) and which are endemic to Mexico and southwestern U.S.A.: Habranthus arenicola (Brandegee) Flagg, G. Lom. Sm. & Meerow, Habranthus chichimeca (T.M. Howard & S. Ogden) Flagg, G. Lom. Sm. & Meerow, Habranthus conzattii (Greenm.) Flagg, G. Lom. Sm. & Meerow and Habranthus longifolius (Hemsl.) Flagg, G. Lom. Sm. & Meerow. The mature anthers, which are more or less horizontal and usually lunate or u-shaped, readily distinguish Habranthus Herb. from Zephyranthes Herb. in which the mature anthers are vertical and relatively linear.

Last Modified: 8/26/2016
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