40 DIALYPETALOUS EXOGENS 



1. r. maculatum, L. Stem erect, dichotomous above; leaves 

 3- to 5-parted ; petals entire, twice as long as the calyx. 

 MACULATE GERANIUM. Crow-foot. Spotted Crane's-bill. 



Perennial. Stem 12 to 18 inches high, hairy. Leaves 2 to 3 inches long, marked 

 with pale blotches ; radical leaves on petioles 3 to 6 or 8 inches in length ; stem- 

 leaves on shorter petioles, the uppermost subsessile. Flowers purple, large, sub- 

 corymbose. 

 Hob. Woods, fence-rows, &c., common. Fl. May. Fr. June. 



Obs. The large root, or rhizoma, is considerably astringent; and 

 has been found useful in diarrhoea, hemorrhage, &c. 



2. O. Caroliniaimm, L. Stem diffusely branching; leaves 

 deeply 5-parted ; petals emarginate, about as long as the calyx. 

 CAROLINIAN GERANIUM. Carolina Crane's-bill. 



Annual? Stem 6 to 12 or 18 inches long, often several from the root, dichoto- 

 mously and diffusely branching. Leaves about an inch long, and wider than long, 

 reniform-orbicular in their outline, multifid ; radical petioles 2 to 6 inches long; 

 cauline half an inch to 3 inches in length. Flowers pale red, veined, small, sub- 

 fasciculate. 

 Hob. Low grounds; along Brandy wine : not common. Fl. May. Fr. July. 



ORDER XXII. OXALIDACEAE. 



Herbs, with sour juice; leaves alternate, compound, mostly without stipules; flmvers 

 regular, nearly as in Geranium, but the styles separate, and the fruit a 5-celled 

 several-seeded capsule; embryo straight, in thin fleshy albumen. 



70. OX'AMS, L. 



[Gr. Oxys, sharp, or sour; from the quality of the plants.] 

 Petals withering after expansion. Capsule membranaceous, oblong, 

 pentagonal, opening at the angles. Seeds pendulous from the axis, 

 their outer coat loose and separating. Leaves mostly composed of 

 8 obcordate leaflets, the radical ones stipulate. 



1. O. Violacea, L. Stemless ; bulb scaly ; scapes subumbellate ; 



sepals callous at apex. 



VIOLET OXALIS. Violet Wood-Sorrel. 



Perennial. Leaves radical, trifoliolate; leaflets about half an inch long, and 

 wider than long ; common petioles 3 to 6 inches long. Scapes 4 to 6 or 8 inches high , 

 naked, 2- or 3- to 6- or 9-flowered. Flowers violet-purple, nodding. 

 Hob. Woodlands, fence-rows, &c.: frequent. Fl. May. Fr. July. 

 25. O. stricta, L. Caulescent; stem mostly erect, branched and 

 leafy; peduncles axillary, longer than the petioles. 

 UPRIGHT OXALIS. Wood-Sorrel. Yellow Wood-Sorrel. 



Perennial? Stem 2 or 3 inches to near 2 feet high, more or less pubescent, 

 often bushy, and sometimes nearly prostrate. Leaflets one-fourth of an inch to an 

 inch long; common petioles 1 to 3 or 4 inches long. Peduncles 2 to 4 or 5 inches 

 long, cymosely 3- to 10-flowered. Flowers yellow. 

 Hob. Fields, and woodlands : common. Fl. May. Fr. July. 



Obs. This is a very variable plant in size, habit, and pubescence ; 

 but it is difficult to designate good characters for more than one 

 species, among all the varieties. 



ORDER XXIII. BALSAMINACEAE. 



Herbs; stems succulent, sub-pellucid, and gorged with a watery juice; leaves usually 



