Biosystematics of higher plants in New Zealand 1965-1984 Journal Paper
- Author
- Connor, H.E.
- Year
- 1985
- Journal / Source
- New Zealand Journal of Botany
- Volume
- 23
- Pages
- 613-643
- Keywords
- Sarcocornia quinquejlora ssp. quinquejlora, Salicornieae, reproductive systems, ~ermaphroditism, gynodioecism, male-sterility, Wind pollination, sex-form frequency, dichogamy
- Summary
- Sarcocornia quinquejlora in New Zealand consists of populations of hermaphrodite plants except in Golden and Tasman Bays, at F~xton, and on the Otago Peninsula where the species is gynodioecious. Among Nelson populations the frequency of female plants (F) ranged from 0.12 to 0.53; at Aramoana, Otago Harbour, females were not as frequent lying within the values 0.05 < F < 0.10. S. qumquejlora is protogynous and in the gynodioecious populations stigma exsertion from female flowers coincides with anther exsertion from hermaphrodite flowers. Gynodioecism is found in other Southern Hemisphere species of Sarcocornia; the possible evolutionary pathway to gynodioecism is outlined. Other rep~oductive systems found in the Salicornieae are discussed and related to the frequency of gynodioecism.