Abstract
The chromosome numbers for 137 populations of 24 species are reported. First reports of n = 5 are given for Chrysopsis decumbens, C. floridana, C. hyssopifolia, C. lanuginosa. C. latisquamea, and C. scabrella and 2n = 18 for C. cruiseana. The occurrence of the diploid 2n = 8 for C. mariana is also reported for the first time. The base number of Heterotheca is x = 9, while the base numbers of Chrysopsis are x = 4 and 5 and.x2 = 9. A realignment of sections included in the two distinct genera is proposed.
Publisher
Canadian Science Publishing
Cited by
20 articles.
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