428 
PHARMACEUTICAL BOTANY 
O'vary. —The lower part of a pistil or carpel containing the ovules. 
O'vate. —Shaped like a lengthwise section of a hen’s egg and having the attach¬ 
ment at the broader end. 
O'vule. —A transformed bud destined to become a seed after fertilization. 
O'vum. —The female sexual cell. 
Pal'ate. —A convex projection on the base of the lower lip of a personate corolla. 
PaTea ( Pal'et ).—An inner bract of a Grass inflorescence which with the lemma 
incloses the flower. 
Palea'ceous. —Chaffy. 
Palm— Pale. 
Pal'mate. —Divided or lobed in radiate fashion. 
Palmat'ifid. —-Palmately-cleft. 
Pandu'riform. —Fiddle-shaped. 
Pan'icle. —A compound raceme. 
Papiliona'ceous. —Having butterfly shaped flowers, as in the sub-family Papilio- 
nacecB of the Leguminosae. 
Pap'illose. —Bearing small nipple-shaped protuberances. 
Pap'pus. —The calyx of a Composite flower. 
Papyra'ceous. —Papery. 
Paraph'ysis. —A sterile filament found among reproductive organs in certain 
plants. 
Parasit'ic. —Growing upon or within and deriving sustenance from another 
living organism. 
Paren'chyma. —Soft cellular tissue whose units do not have tapering extremities. 
Pari'etal. —Situated on or pertaining to the wall of an ovary or pericarp. 
Part'ed. —Incised nearly to the mid-rib or base. 
Parthenogen'esis. —The production of an embryo from an unfertilized egg. 
Pathol'ogy. —The study of diseases. 
Pec'tinate. —Comb-like. 
Ped'ate. —Palmately parted or divided with two lateral lobes or divisions from 
each of which more or less linear divisions arise. 
Ped'icel. —A branch of an inflorescence axis supporting a single flower. 
Pedun'cle.— The main stalk of an inflorescence. 
Pellu'cid. —Transparent, clear. 
Pel'tate. —Shield shaped and attached by its lower surface to the support. 
Pen'dulous. —Hanging nearly vertically downward as in the case of some ovules 
that hang from the sides of a locule. 
Pentam'erous. —Applied to flowers having the number five or a multiple thereof 
running throughout each whorl. 
Pentan'drous. —Having five stamens. 
Pe'po. —A fruit of a Cucurbit; a gourd. 
Peren'nial. —Living more than two years. 
Per'fect. —Applied to flowers that contain both stamens and carpels. 
