A Systematic study of the genus Balduina (Compositae,Heliantheae) |
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| Authors: | Earl S Parker Samuel B Jones |
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| Institution: | 1. Abraham Baldwin Agricultural College, 31794, Tifton, GA
2. Department of Botany, University of Georgia, 30601, Athens, GA
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| Abstract: | The genusBalduina, endemic to the southeastern United States as interpreted here, includes a complex of three species:B. atropurpurea Harper,B. angustifolia (Pursh) Robinson, andB. uniflora Nutt. The first two species have a chromosome number ofn = 18 andB. uniflora hasn = 36. Hybridization experiments demonstrated strong internal reproductive isolating mechanisms. Flavonoid and sesquiterpene lactone data suggest a possible relationship to the tribe Helenieae. |
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