Life Cycle and Morphology of Bryopsidella ostreobiformis spec. nov. (Bryopsidaceae,Chlorophyta) from the Mediterranean,under Culture Conditions,with Comments on the Phylogeny of the Bryopsis/Derbesia Complex |
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Authors: | E. Calder n-S enz,R. Schnetter |
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Affiliation: | E. Calderón-Sáenz,R. Schnetter |
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Abstract: | Bryopsidella ostreobiformis sp. nov. is presented as the second species of the genus. The latter is amended to accomodate this new species. The derbesioid sporophyte is capable of producing three- to eight-rayed stellate propagules. The dioecious gametophyte is a heterotrichous thallus with branched, prostrate filaments and unbranched, erect ones, and does not resemble Bryopsis. The life cycle is distinctly diplohaplontic, with a diploid sporophyte and a haploid gametophyte. B. ostreobiformis is postulated as the starting point of a hypothetical evolutionary sequence of life histories in the Derbesia/Bryopsis complex. |
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Keywords: | Chlorophyta Bryopsidaceae Bryopsidella ostreobiformis life histories phylogeny flora of the Mediterranean Sea |
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