Crassinucellate ovules
Tenuinucellate and crassinucellate ovules. Drawing by C.-H. Tsou.
Creator(s): C.-H. Tsou
Description: A comparison of tenuinucellate and crassinucellate ovules. For more information about the presence of tenuinucellate ovules in Lecythidaceae see Tsou (1994).
Rights: Rights reside with creator, otherwise property of NYBG.
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Title
Crassinucellate ovules
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Definition
The presence of two or more cell layers between the megasporophyte and the epidermal cells in the early development of the megasporophyte. The megasporophyte develops into the embryo sac which contains the egg that, if fertilized and the conditions are right, will develop into the embryo.
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Notes
Crassinucellate ovules have not been described for neotropical Lecythidaceae.
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Related Terms
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