Hypertext Webster Gateway: "perula"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Perula \Per"u*la\, n.; pl. {Perul[ae]}. [L., dim. of pera
wallet, Gr. ?: cf. F. p['e]rule.]
1. (Bot.) One of the scales of a leaf bud.
2. (Bot.) A pouchlike portion of the perianth in certain
orchides.
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