278 Ordeb 31.— GBEANIACE^. 



1 P. flavum Ait. Caerot-IxEated Geeanioti. St. very simple ;• Ivs. decom- 

 pound, laoiniate, hairy, segm. linear ; umbel many-flowered, fls. brownish-yellow. 



2 P. trfste A. MouENiNG Geeakium. Lvs. hairy, pinnate ; Ifts. bipinnatifid, 

 divisions linear, acute ; fls. dark-green, in simple umbels. 



3 P. odoratfasimum A. Nutmeo-soented Gebanium. St. velvety, short, 

 fleshy; lvs. roundish, cordate, very soft; branches herbaceous, long, diffuse. — 

 Valued chiefly for the powerful, aromatic smeU of the leaves, the flowers being - 

 small, whitish. 



4 P. alolieinilloJdes A. Ladies' mantle Geeantum. St. villous; Vos. 

 cordate, viMous, 5-lobed, palmate ; ped. few-flowered ; stig. sessile. — St. 6' high, 

 diffuse, very hairy, with defiexed bristles. Fls. pink-colored. 



5 P. tricolor B. St. suffruticous, erect; lvs. lanceolate, villous, cut-dentate, trifid ; 

 upper pet. glandular at base. — St. IJf high. This species is distinguished for its 

 beautifully variegated fls. Petals roundish and nearly uniform in shape, but very 

 different in color ; the three lower ones are white, slightly veined, the 2 upper 

 of a rich purple, almost black at base. 



6 P. ooriandrifolium Jac. St. herbaceous, biennial, somewhat downy ; lvs. 

 bvpinriate, smooth, lobes linear, subpinnatifid. — St. diffuse, If high. Distinguished 

 by the finely divided leaves and large fla. The 2 upper petals much the largest, 

 obovate, veined with purple, the 3 lower, of which the middle one is often 

 wanting, are narrow and of pure white. 



7 P. glaacum L'Her. Very smooth and glaucous; his. lanceolate, entire, acu- 

 minate; ped. 1 — 2-flMwered. — Sts. 3f high, shrubby and branched. The plant is 

 remarkably distinguished by its leaves. Fed. axillary, with 1 or 2 elegant flowers. 

 Petals obovate, of a delicate blush color with red veins. 



8 P. betulinum A. Jjos. ovate, unequally serrate, smoothish ; stip. ovate- 

 lanceolate ; ped. 2 — i-flowered. — St. shrubby, 3f high. The plant is well named 

 for its leaves. Fls. pale-pink, with deep red veins. 



9 P. acetdsTim A. Lvs. very smooth, obovate, crenate, somewhat fleshy ; ped. 

 few-flowered ; petals hnear. — St. shrubby, 3f high. Named for the add flavor 

 of the leaves. Pis. pink. 



10 P. zonule L. Hoese-shoe Gbeanium. Lvs. cordate-orbicular, obsoletely 

 lobed, toothed, marked with a conceniric zone. — St. thick, shrubby, 2 — 3f high. 

 One of the most popular of all the species. The zone upon the leaf is of various 

 shades. The fls. are of a bright scarlet, umbeled, on long peduncles. It has many 

 varieties, of which the most remarkable is 



p. maeginale; silver-edged; the leaves of which are bordered with white. 



IIP. inquinans A. IJvs. round, reniform, scarcely divided, crenate, viscid ; 

 umbels many-flowed ; petals obovate, crenate. — Justly admired for the viwd 

 scarlet of its numerous flowers. The name alludes to the reddish, clammy 

 moisture which stains the fingers in handling the soft, downy branches. 



12 P. peltdtum A. Ivt-lbated Geeanium. Lvs. 5-lobed, entire, fleshy, 

 smooth, more or less peltate ; umbels few-flowered. — St. climbing, several feet in 

 length. Whole plant very smooth. A beautiful species, with umbels of very 

 handsome purplish flowers. 



13 P. tetragonum L'Eer. Branches i-cornered, fleshy; lvs. cordate, bluntly 

 lobed, somewhat toothed ; pet. 4, the upper ones pale-pink, with crimson veins, 

 the 2 lower snial], white. — ^Lvs. small, rounded, notched, with scattered haira. 



14 P. Watsdnii Link. Lvs. orbicular, cordate, somewhat lobed, crenate- 

 dentate, undulate at the margin ; stip. acute, cordate, and somewhat toothed. — 

 Fls. large, purple, variegated, several together. 



15 P. grandifldrum W. Smooth, glaucous; lvs. 5-lobed, palmated, cordate at 

 base, the lobes dentate toward the end; petals 3 times as long as the calyx. — 

 Distinguished for the size and beauty of the flowers, which are white, the 2 upper 

 ones elegantly veined, and tinged with red, larger thau the rest. 



16 P. gravgolens A. Eose-scented Geranium. Lvs. palmately 1-lobed, 

 lobes oblong, bluntly toothed, revolute, and very rough at the edge; umbels 

 many-flowered, capitate. — Nectary about half as long as calyx. Lvs. very frsr 

 grant, l^ls. purple. 



