TITLE

CHROMOSOME NUMBERS, PHYTOGEOGRAPHY, AND EVOLUTION IN KOSTELETZKYA (MALVACEAE)

AUTHOR(S)
Blanchard Jr., Orland J.
PUB. DATE
January 2012
SOURCE
Rhodora;2012, Vol. 114 Issue 957, p37
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Kosteletzkya C. Presl includes 17 species that are about evenly distributed between Africa and the northern Neotropics. The seven species with known chromosome numbers are exclusively diploid (n 5 19). Here, 47 new chromosome counts are reported and the nomenclature of five of the earliercounted species is updated. The counts confirm chromosome numbers for six species and provide first counts for eight species. Four of the latter, all African, are tetraploids, and another African species is a hexaploid. Amphi-Atlantic distributions and polyploidy in other malvoid groups are considered. Polyploidy evidence suggests an African origin for the genus.
ACCESSION #
75133123

 

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