GLOSSARY. 9 



Pinnate, a compound leaf whose leaflets are arranged on 

 each side of the common petiole or axis. Eren-piunafc, 

 havin.t? an equal nnmher of leaflets. Odd-pin nate, 

 having an odd terminal leaflet. 



Pinnafifid, leaf cut into lobes about halfway to the niidi-ib. 



rinnafisi'cf, leaf cut into segments nearly or quite to the 

 midrib. 



Pistil, central and female organ of the flower, consisting of 

 the ovaij/, which contains one or more ovules, the 

 style, Miiicli rises from the summit of the ovary, and 

 the stigma, a glandular termination of the style. In 

 those eases where the style is absent, the stigma is 

 sessile on the ovary. It is often sticky or papillose 

 and receives the pollen from the anthers. 



Placenta, part of the ovary to which the ovules are at- 

 tached by their funicles. 



Plumose, furnished with hairs branching or arranged in 2 

 rows like the barbs of a feather. 



Pod, a sort of capsule forming the fruit of Lcijiniiinosoi 

 and Crurifera'. 



Pollen, see stamen. 



Polijpetalous, a corolla formed of several free petals. 



Prickle, a sharp excrescence rising from the bark and de- 

 tachable without tearing the wood. 



Procumbent, spreading along the ground, but not so closely 

 as prostrate. 



Proliferous, an organ which produces another like itself. 



Prostrate, lying flat along the ground. 



Baceme, an undivided axis or peduncle bearing pedicellate 

 floAvers. 



Padicid, springing from the root. 



Badicle, see embryo. 



Pay, (1) see second definition of Ugule; (2) all the ray- 

 flowers in a Comjiosita which has tubular flowers in 

 the centre of the head ; (3) one of the branches (ped- 

 uncles) of an umbel. 



Beceptaclc, enlarged summit of the peduncle, bearing a 

 single flower, or, in the Composita', a dense cluster of 

 flowers. 



Pecurred ( reflexcdj, curved backwards or downwards. 



Phom boidcd, lozenge-shaped. 



Pootstock, subterranean part of the stem of herbaceous 

 perennials, producing roots and sometimes stolons. 



Ptincinate, a pinnatifid leaf with the lobes pointing towards 

 the base. 



Scarious, almost the same as membranous, but rather stiff. 



Seed, a ripened ovule, consisting of two coats, within which 

 is the embryo only (as in Crucifera), or the embryo 

 with a supply of albumen (as in Wheat), the albumen 

 being intended for the nourishment of the growing 

 embryo. 



