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Structure and development of the sex organs in Tolypella nidifica (O. Müll.) A.Br. (Characeae)
Authors:S B KAUSIK FLS  S S BHATTACHARYA
Institution:Department of Botany, Faculty of Science, University of Libya, Tripoli, Libya
Abstract:The occurrence of Tolypella (Characeae) in Libya is recorded for the first time. Also for the first time, the structural development of the male and female fructifications (the globule (antheridium) and the nucule (oogonium) respectively) in Tolypella nidifca (O. Müll.) A.Br. is described. Both the globule and the nucule show the same course of development as is seen in Chara. In the final structure of the globule, however, there are two stalk cells in Tolypella , while only a single cell is present in Chava and Nitella. The corona has ten cells in two tiers of five each, as in Nitella , but in Chara there is only a single tier of five cells forming the corona.
Keywords:
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