402 GLOSSARY OF TERMS. 



Pericarp, the seed-vessel. 



Permanent leaves, remaining unaltered during winter. 



Persistent calyx or corolla, remaining until the fruit is ripe. 



Personate corolla, irregular, with two lips, and a closed throat, f. 124. 



Petals, the distinct pieces of a corolla. 



Pinnate, when several leaflets proceed from a common stalk, f. 78, 80. 



Pinnatifid, cut transversely into several oblong segments, f. 47. 



Pistil, an organ consisting of three parts, occupying the centre of the 



flower, f. 136. 



Pithy, having the central part filled with pith. 

 Plaited, folded so as to present alternately projecting and retiring angles, 



f.69. 

 Pod, a long dry seed-vessel of two valves, separating by a longitudinal 



partition, to the edges of which the seeds are alternately attached, 



f. 138. 



Polished, smooth and reflecting light. 



Pollen, the dust or minute globules contained in the anther. 

 Polypetalous, consisting of several distinct pieces or petals. 

 Pores, small cavities or holes. 

 Pouch, a short pod, f. 139. 



Prickle, an acute appendage arising from the bark, f. 92. 

 Prickly, covered with prickles. 

 Procumbent, lying on the ground. 

 Protuberant, having a prominence. 



Quadrangular, flat and four-cornered. 

 Quinate leaf, compound with five leaflets. 

 Qiiinquangular, flat with five corners. 



Raceme, numerous flowers, each on a stalk, arranged along a common 



stalk, f. 97, 88. 



Radiating flouers, having the marginal florets long and spreading. 

 Radical leaves, growing from the root, f. 19. 

 Ray, the marginal elongated florets of a compound flower. 

 Receptacle, the point at which all the parts of a flower meet. 

 Reclinate leaves, inclining downwards. 

 Reflected, bent backwards. 



Regular corolla, uniform in its general figure, f. 126, 127. 

 Remote leaves, scales, &c., widely separated. 

 Reticulated, when the veins resemble net-work. 

 Retuse leaf or petal, ending in a broad shallow notch, f. 55. 

 Revolute, rolled back at the margin, f. 66. 

 Rhombic, diamond-shaped. 



Ribbed leaf, when the vessels extend in undivided lines, f. 68. 

 Ribs, elevated lines. 

 Ringent corolla, the limb divided into two parts, leaving an open throat, 



f. 123. 



Rough, covered with hairs. 



Roundish leaves or petals, when the length and breadth are nearly equal. 

 Rosaceous corolla, of five equal roundish petals, f. 127. 

 Runciimte, pinnatifid, with the segments pointed and directed downwards, 



f.49. 



Salver-shaped corolla, with a long cylindrical tube and expanded limb, 

 .117. 



