228 GLOSSAKY OP BOTANICAL TERMS. 



being curved; the micropyle at the apex with the hilum and 



chalaza blended in one at the base, as in polygonum. 

 OVAL, an ellipse rounded at each end, broadest in the middle, and 



about twice as long as broad. 

 OVARY, that part of the pistil in which the young ovules are 



situated. 



OVATE, shaped like an egg ; broadest below the middle. 

 OVATO-LANCEOLATE, a compound of two terms, signifying the form 



as being between ovate and lanceolate. 

 OVULE, the young seed contained in the ovary. 



PAGINA, applied to the surface of a leaf. 



PALATE, the projecting part of the lower lip in a personate corolla, 



which closes the entrance to the tube. 

 PALMATE, divided about half way down and spreading like the 



opened hand. 



PANDURIFORM, shaped like a fiddle. 

 PANICLE, a raceme with its pedicels branched a second time, 



paniculate like a panicle. 

 PAPILIONACEOUS, a pea-shaped flower, said to resemble a butterfly, 



the large posterior petal is named the vexillum or standard ; 



the two side ones are the alee or wings ; and the lowest or 



inferior two joined in one piece, the carina or keel. 

 PAPILLOSE, covered with small soft excrescences. 

 PAPPUS, a crown of soft, silky hairs, feathers, or scales, termina- 

 ting the fruit in Compositce. 

 PARENCHYMA, the cellular tissue of plants. 

 PARIETAL, attached to the walls of the ovary. 

 PARI-PINNATE, compound pinnate leaves terminating in a pair. 

 PARTITE, divided into deep lobes, or cut nearly to the base of an 



object. 



PATENT, widely spreading. 



PECTINATE, split into narrow segments as in a comb. 

 PEDATE, palmate leaves, with the two outer lobes again deeply 



cut Into the base. 



PEDICEL, the secondary branches of a peduncle. 

 PEDUNCLE, the primary flower-stalk. 

 PELLUCID, bright, nearly transparent. 

 PELORIA, an irregular flower becoming regular ; a phenomenon 



occurring in several flowers, such as Linaria. 

 PELTATE, when the petiole is attached to the disc instead of the 



margin. 



PENDULOUS, drooping. 



PENICILLATE, having the tufted appearance of a hair-pencil. 

 PENNI-NERVED, nerves branching regularly from the midrib to 



the edge of the leaf, resembling a feather. 

 PEPO, the fruit of the gourd or melon. 

 PENTANGULAR, having five angles with five flat faces. 

 PERENNIAL, plants flowering for several years. 



