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Flowering of the seagrass thalassia testudinum hydrocharitaceae in the tampa bay florida usa area

, : Flowering of the seagrass thalassia testudinum hydrocharitaceae in the tampa bay florida usa area. Aquatic Botany 5(3): 251-260

Nine sites in the Tampa Bay area were sampled during June 1976 to document flowering occurrence and obtain baseline data for the study of flowering populations of T. testudinum Banks ex Konig. Flowering occurred at all sites. Qualitative information was obtained on 3 distinct flora stages: bud, anthesis and fruit. Comparison between 2 sites showed that frequency of sexual reproduction varied from 35-56%. Average densities of reproductive short-shoots ranged from 8-19 m-2. Sex ratios from individual sites indicated general predominance of female over male short-shoots, with an average overall ratio of 3:1. Field observations and transect data demonstrated patchiness in the spatial pattern of reproductive short-shoots. Limited evidence provided additional information indicating that short-shoots on a common rhizome (i.e., an individual Thalassia plant) are dioecious.


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