The Collaborative International Dictionary
Perula
Perula \Per"u*la\, n.; pl. Perul[ae]. [L., dim. of pera wallet, Gr. ?: cf. F. p['e]rule.]
(Bot.) One of the scales of a leaf bud.
(Bot.) A pouchlike portion of the perianth in certain orchides.
Wiktionary
perula
n. 1 (context botany English) One of the scales of a leaf bud. 2 (context botany English) A pouchlike portion of the perianth in certain orchids.