198 XXVII. GERANJACE^. Pelargonidm. 



ones are white, slightly veined, the 2 upper of a rich purple, almost black at 

 base. 



6. P. coRiANDRiFOLiuM. Coriander-leaved Geranium. — St. herbaceous, bien- 

 nial, somewhat downy; lis. bipinnate, smooth, lobes linear, subpinnatif.d. — 

 Stem difTuse, If high. Distinguished by the finely divided leaves and large 

 flowers. 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 a 

 pure white. 



* * * Leaves neither divided nw angular ; stcmfridicose. 



7. P. GLAUCUM. Glaucous-leaved Geranium. — Very smooth and glaucous; 

 Ivs. lanceolate, jentire, acuminate; ped. 1 — 2-flowered. — Stems 3f high, shrubby 

 and branched. The plant is remarkably distinguished by its leaves. Pedun- 

 cles axillary, Avith 1 or 2 elegant flowers. Petals obovate, of a delicate blush- 

 color, with red veins. 



8. P. BETULlNUM. Birch-Uavcd Geranium. — Dvs. ovate, unequally serrate, 

 smoothish; stip. ovate-lanceolate; ped. 2 — 4-flowered. — Stem shrubby, 3f high. 

 The plant is well named for its leaves. Flowers pale-pink, with deep red veins. 



9. P. ACETosuM. Snrrel-leaved Geranium. — La;s. very smooth, obovate, crenate, 

 somewhat fleshy; pcd. few-flowered; pet. linear. — Stem shrubby, 3f high. 

 JVamed for the acid flavor of the leaves. Flowers pink. 



* * * * Leaves either angular or palviately lobed; stem fruticose. 



10. P. zoNALE. Hnrsc-shoe Geranium. — Lvs. cordate-orbicular, obsoletely 

 lobed, toothed, marked with a concentric zone. — Stem thick, shrubby, 2 — 3f 

 high. One of the most popular of all the species. Leaves always marked 

 with a dark concentric stripe of various shades. The flowers are of a bright 

 scarlet, umbeled, on long peduncles. It has many varieties, of which the most 

 remarkable is — 



fi. marginale; silver-edged, the leaves of which are bordered with white. 



11. P. iNauiNANS. Scarlet Geranium,. — Z/rs. round-reniform, scarcely divided, 

 crenate, viscid; umbels many-flowered; jM. obovate, cuneate. — Justly admired 

 for the vivid 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. PELTATUM. Ivy-leaved Geranium. — Lvs. 5-lobed, entire, fleshy, smooth, 

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

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

 handsome purplish flowers. 



13. P. TETRAGONUM. Sc/uare-stalkcd Geranium. — Branches 4-cornered, fleshy ; 

 lvs. cordate, bluntly lobed, somewhat toothed ; pet. 4, the upper ones pale-pink, 

 with crimson veins, the 2 lower small, wliite. — Leaves small, rounded, notched, 

 with scattered hairs. 



14. P. GRANDiFLORUM. Large-Jlowcred Geranium. — Smooth, glaucous ; lvs. 

 5-lobed, palmated, cordate at base, the Jobes dentate towards the end ; pet. three 

 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 than the rest. 



15. P. GRAVEOLENs. Rose-scentcd Geranium. — Lvs. palmately 7-lobed, lobes 

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

 flowered, capitate. — Nectary about half as long as calyx. Leaves veri^ fra- 

 grant. Flowers purple. 



16. P. RADULA. Rasp-leaved Gerandum. — Lvs. palmate, rough ; lobes narrow, 

 pinnatifid, revolute at edge, with linear segments; umbels few-flowered; nec- 

 tary nearly as long as the calyx. — Distinguished for its large rough leaves 

 deeply divided into linear segments, and with a mint-like fragrance. Flowers 

 purple. 



17. P. auERCiPOLiuM. Oak-leaved Geranium. — L/vs. cordate, pinnatifid, with 

 rounded recesses, lobes obtusely crenate ; branches and petioles hispid. — Leaves 

 rough, often spotted. Flowers purplish. 



