146 Field Manual 



Palmate. Diverging like the lingers of a hand. 



Panicle. A compound inflorescence of the racemose type 



usually of pyramidal form. 

 Parasitic. Growing upon other living plants or animals and 



absorbing their juices and tissues as food. 

 Parietal. Borne on the wall of the ovulary. or pertaining to it. 

 Parted. Deeply cleft. 



Pedicel. The stalk of a flower in a flower cluster. 

 Peduncle. The stalk of a flower or flower cluster. 

 Pellucid. Transparent. 

 Peltate. Shield-shaped, as a leaf with the petiole attached at 



or near the centre of the blade. 

 Pentacyclic Having five cycles. 

 Pentamerous. Five-parted. 



Perfect. A flower having both stamens and carpels. 

 Perfoliate. Leaves so clasping the stem as to appear as if 



pierced by it. 

 Perianth. The calyx and corolla taken collectively. 

 Pericarp. The wall of a fruit; the carpel wall. 

 Perigynous. Having the sepals, petals and stamens borne on 



a disc surrounding the gynecium. 

 Persistent, Remaining attached after the growing period. 

 Petal. One of the leaves of the corolla. 

 Petiole. The stalk of a leaf. 

 Pilose. With long soft hairs. 



Pinna. The primary divisions of a pinnately compound leaf. 

 Pinnate. Leaves divided into leaflets or segments along a 



common axis. 

 Pinnatifid. Pinnately cleft to the middle or beyond. 

 Pinnule. .\ division of a pinna in a compound leaf. 

 Placenta. The ridge or surface bearing the ovules. 

 Plicate. Folded like a fan. 

 Plumose. Resembling a plume or feather. 

 Plurilocular. Having several or many cavities. 

 Pollen grain. The male gametophyte of seed plants. 

 Pome. The fruit of the apple and related plants, with an 



adnate fleshy perigynous disc. 

 Prickle. A stifiF sharp-pointed outgrowth from the epidermis. 

 Puberulent. With very short hairs. 

 Pubescent. Hairy, especially with fine and soft hairs. 

 Punctate. With translucent dots or glands. 



