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Chromosome Cytology of Hessea, Strumaria, and Carpolyza (Amaryllidaceae)
Annals of the Missouri Botanical Garden
Vol. 63, No. 2 (1976), pp. 314-320
Published by: Missouri Botanical Garden Press
Stable URL: http://www.jstor.org/stable/2395309
Page Count: 7
You can always find the topics here!Topics: Species, Plants, Chromosomes, Genera, Alliances, Karyotype, Cytology, Botanical gardens, Diploidy, Geographic regions
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A diploid number of 2n = 20 is reported in Carpolyza, in the four species of Strumaria, and four of the five species of Hessea studied. One species, Hessea zeyheri, has 2n = 22. Similarity of karyotypes in all the species with 2n = 20 appears to indicate a close relationship between them. Hessea zeyheri with 2n = 22 may be a link between the x = 10 group and the remainder of the tribe Amaryllideae in which x = 11 is basic. The possible systematic significance of the difference in base number in Hessea zeyheri is explored and a reevaluation of generic limits is suggested.
Annals of the Missouri Botanical Garden © 1976 Missouri Botanical Garden Press