CHROMOSOME NUMBERS IN SOUTH AMERICAN HAPLOPAPPUS CASS. (COMPOSITAE) |
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Authors: | Gregory K. Brown W. Dennis Clark |
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Affiliation: | Department of Botany and Microbiology, Arizona State University, Tempe, Arizona, 85281 |
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Abstract: | Chromosome counts are reported for 33 species from all four sections of the genus Haplopappus in South America. These include first reports for 28 species and two putative hybrids. All chromosome numbers reported herein are 2n = 5II, with the exception of H. prunelloides with 2n = 6II. Unlike the North American species, the morphological diversity of South American taxa is not concomitant with chromosomal variation. |
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