Botany. The second of two coats or integuments of an ovule, originally the inner one, later applied to the outer covering: see primine, n.
单词 | θ21892 |
释义 | the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > inner or second integument (3) secundine1672 Botany. The second of two coats or integuments of an ovule, originally the inner one, later applied to the outer covering: see primine, n. sarcoderm1848 The fleshy layer in some seeds lying between the internal and external integuments. primine1875 The inner and first formed of the two integuments of an ovule, where two are present. |
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