GLOSSARY OF TECHNICAL TEEMS 305 



Oblanceolate. Inverted lance-shaped. 



Oblique. Unequal, one sided, or slanting. 



Oblong. From two to four times longer than hroad. 



Obovate. Inverted ovate, the broad end uppermost. 



Obtuse. With a rounded end. 



Opposite. Leaves or branches in pairs at the same height but on opposite 



sides of a stem. 

 Orbicular. Circular in outline. 

 Orthotropous. Said of a straight ovule, the chalaza at the base and the 



micropyle at the apex. 

 Ovary. The ovule-bearing part of the pistil. 

 Ovule. The part of the flower which, when fertilized, becomes the seed 



Palmate. Lobed or divided into a palm-like fashion, or like the fingers 



of a hand. 

 Panicle. An open and branched inflorescence. 

 Paniculate. As a panicle, or panicle-like. 



Papilionaceous. Butterfly like; an irregular flower of the pea family. 

 Papillate. Covered with small protuberances. 

 Parietal. Attached to the walls of the ovary or fruit. 

 Pedicel. The stalk of a single flower. 

 Peduncle. Stem of a flower or flower cluster. 

 Pellucid. Transparent. 

 Peltate. Shield -shaped. 

 Pendulous. Hanging or drooping. 

 Penicillate. Tufted like a brush. 

 Penta-. In Greek words meaning five. 

 Perfect. Flowers having both stamens and pistils. 

 Perianth. The floral envelope taken as a whole; commonly applied to 



flowers in which calyx and corolla cannot be distinguished. 

 Pericarp. The ripened ovary; the wall of the fruit. 

 Perigynous. Stamens borne on the perianth around the ovary. 

 Persistent. Attached, not falling after the growing period. 

 Petal. A unit or part (a leaf) of the corolla. 

 Petaloid. Resembling or colored like the petal. 

 Petiole. The stalk of a leaf. 

 Petiolule. The stalk of a leaflet. 

 Pilose. Clothed with soft, distinct, slender hairs. 



