45 



Pedicel. The stalk of a single flower in a 

 flower-cluster. 



Pedicellate. Borne on a pedicel. 



Peduncle. The stalk of a flower-cluster or 

 of a solitary flower. 



Pedunculate. Borne on a peduncle. 



Peltate. Shield-shaped. A flat organ at- 

 tached by a central stem. 



Perennial. Lasting for more than two years. 



Perfect. Said of flowers which have both 

 stamens and pistils. 



Perfoliate. Said of leaves through which 

 the stems seem to pass. 



Perianth. The calyx and corolla of a flower 

 collectively. 



Pericarp. The matured wall of an ovary. 



Perigynous. Said of a perianth united with 

 the ovary a portion of its length. 



Persistent. Remaining long attached to the 

 organs supporting them; as leaves at- 

 tached over winter; or calyx-lobes after 

 the flowering season. 



Petal. One of the divisions of a corolla. 



Petaloid. Resembling or colored like a petal. 



Petiolate. Having a petiole. 



Petiole. The stalk or stem of a leaf. 



Petiolulate. Having a petioule. 



Petioule. The stalk of a leaflet. 



Phyllodium. A specialized petiole re- 



sembling or performing functions of a 

 leaf. 



Pilose. Hairy with long soft hairs. 



Pinna. (pi. Pinnae) One of the first di- 

 visions of a bipinnately compound leaf. 



Pinnate. Said of compound leaves with 

 leaflets arranged on opposite sides of a 

 stem the rachis. 



Pinnatifid. Pinnately cleft to the midde or 

 farther. 



Pinnule. A secondary pinna. 



Pistil. The central organ of a perfect 

 flower in which the seeds are produced. 



Pistillate. Provided with a pistil. 



Placenta, (pi. Placate) The portion of the 

 interior of an ovary which bears the ovules. 



Plicate. Said of leaves folded or plaited 

 (like a fan) in the bud. 



Plumule. The bud or terminal of an em- 

 bryo. 



Pollen. The fertilizing grains or element of 

 the stamen. 



Polliniferous. Bearing pollen. 



Polygamous. Bearing both perfect and im- 

 perfect flow 7 ers. 



Polypetalous. Having separate petals. 



Pome. A fleshy fruit resulting from the de 

 velopment of an ovary and an adnata 

 calyx-tube, as the' apple. 



