GLOSSARY OF TERMS. 



Permanent leaves, remaining unchangctl through the winter, paj^c 71. 

 Persistent calyx or corolla, remaining until the fruit is ripe, ^la^^e 1 1 . 

 Personate, when a corolla with two lips is closed at the throat, pi. 9, 



fig. 2 ; pi. 10, fig. 2. 

 Petals, the distinct pieces of a corolla, page 11. 

 Petaloid, like a petal. 

 Petiole, a leaf-stalk, pi. 32, fig. 7- 

 Pefiolate, having foot-stalks. 

 Phccnogamous plants, such as are \-isibly furnished with stamens and 



pistils. 

 Pilose, slightly hairy. 

 Pitmate, when several leaflets proceed from a common leaf-stalk, page 



68, pi. 30, figs. 5, 6. 

 Pinnatifid, when cut or divided into lobes from the margin nearly to 



the mid-rib, pi. 29, fig. 7- 

 Pistil, the central organ of a flower, consisting generally of three 



parts, page 17, pi. li%.3; pi. 11, fig. 6. 

 Plaited, folded, pi. 31, fig 5. 

 Plane, flat. 



Plicate, plaited, folded, pi. 31, fig. 5. 

 Plumose, resembling feathers. 

 Pod, a long seed-vessel of two valves, such as that of the pea tribe, 



pi. 12, fig. 9; and some of the cruciform flowering plants, pL 12, 



fig. 8. 

 Pollen, the dust or minute globules contained in the anther, pi. 1 1 , fig 1 c. 

 Polyandrous, having more stamens than 20, pi. 18, fig. 2. 

 Polygamous plant, when some of its flowers contain stamens only, 



others pistils only, and others both stamens and pistils. 

 Poly gy nous, having numerous pistils, pi. 20, fig. 10. 

 Polypctalous, having meny petals, pi, y? fig- 5 . 



Polyspermous, many-seeded. . 



Pome, an apple, page 19, pi. 13, fig. 3. 



Pores, apertures in the cuticle. » 



Pouch, a short pod, page 19, pi. 12, tigs. 6, 7- 

 Procumbent, lying on the ground, page 62. 



Proliferoiis plant, when it forms numerous young plants about its roots. 

 Prurient, stinging. 



Pubescent, downy, invested with close-pressed hairs. 

 Pyriform, shaped like a pear. 



Q 



Quadrangtilar, four-angled. 

 Quadriferous, arranged in four rows. 

 Quadrifid, divided four times. 

 Quinate leaf, compound with five leaflets. 

 Quinquejid, div ided into five. 

 (^uinquangular, flat, with five comers. 



R 

 Raceme, a mode of flowering, page 72, pi. 32, fig. 2. 

 Racemose, flowering in racemes, pi. 32, fig. 2 . 

 Rac/iis, that part of the stem which bears the flowers. 

 Radiate, when the marginal florets of a compound flower are long and 



spreading, pi. 16, fig. 6 ; pi. 22, fig. 2. 

 Radical, proceeding from the root, pi 25, fig. 9, *■ ; pi- 27, fig 4, r, 

 Radius, the ray, or marginal florets of a compound flower, pi. 16, fig. 6 ; 



pl. 22, fig. 2. 

 Radicating, throwing out roots from the stem. 

 Ratnifications, sulidivisions of roots or branches. 



