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Plant Sciences

1987

Anoda

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Full-Text Articles in Life Sciences

Revision Of The Genus Anoda (Malvaceae), Paul A. Fryxell Jan 1987

Revision Of The Genus Anoda (Malvaceae), Paul A. Fryxell

Aliso: A Journal of Systematic and Floristic Botany

A revision of the genus Anoda is presented that recognizes 23 species, of which ten are described as new. The genus includes annual herbs, subshrubs, and occasionally shrubs and occurs from the southern United States to Bolivia, Argentina, and Chile. Most of this distributional range, however, is accounted for by a single species, A. cristata, which also occurs as an adventive in a few other parts of the world. The genus is principally Mexican, all of the species occurring within that country. Anoda is closely allied to the genus Periptera, also a Mexican genus, and the two genera share …


Chromosome Numbers And Evolution In Anoda And Periptera (Malvaceae), David M. Bates Jan 1987

Chromosome Numbers And Evolution In Anoda And Periptera (Malvaceae), David M. Bates

Aliso: A Journal of Systematic and Floristic Botany

Relationships within and between the principally North American, malvaceous genera Anoda and Periptera are assessed through analysis of chromosomal and hybridization data. Chromosome numbers are reported for ten species of Anoda and one of Periptera, and observations on meiosis in hybrid and non hybrid plants are presented. The results indicate: I) that Anoda and Periptera are closely related and occupy a relatively isolated position in the tribe Malveae, 2) that speciation in Anoda has occurred primarily at the diploid level, n = 15 , although A. crenatiflora is tetraploid and A. cristata includes diploids, tetraploids, and hexapJoids, and 3) that …