The outer of the two integuments of an ovule, where two are present.
| 单词 | θ21893 |
| 释义 | the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > ovule > outer or third integument (2) primine1832 The outer of the two integuments of an ovule, where two are present. tercine1832 A third integument supposed by some to occur in certain ovules: cf. primine, n. |
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