Abstract:Ameroglossum is composed of shrubs endemic to inselbergs in north-eastern Brazil, currently circumscribed in Linderniaceae. Chromosomal counts for this family are few, but quite variable, ranging from 2n = 14 to 60. We investigated the chromosomal numbers of 14 species of Linderniaceae with emphasis on Ameroglossum and analysed the distribution of heterochromatin and 5S and 35S rDNA sites for most species. We found 2n = 60 for the species of Ameroglossum (except Ameroglossum genaroanum with 2n = 64), Catimbaua… Show more
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