Integument
Parts of an ovule. Drawing by C.-H. Tsou.
Creator(s): C.-H. Tsou
Description: The funicle, outer and inner integulments, and the micropyle. In this drawing, the micropyle is formed by the inner integument as is the case for all Lecythidaceae that have been studied (Tsou, 1994)..
Rights: Rights reside with creator, otherwise property of NYBG.
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Title
Integument
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Definition
The outer covering of the ovule that develops into the testa or seed coat; it may be composed of one or two layers, the inner and outer integuments, respectively.
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Notes
In neotropical Lecythidaceae, there are two integuments and the inner one usually forms the micropyle. An ovule with two integuments is called bitegmic.
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Related Terms
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