MALVACEAE. 619 



5. Malva moschata L. MUSK MALLOW. MUSK ROSE. (I. F. f. 2418.) 

 Perennial, 3-6 dm. high, pubescent with long hairs, or glabrate. Basal leaves 

 orbicular, 7-10 cm. wide, with broad rounded dentate lobes; stem-leaves deeply 

 divided into linear or cuneate, pinnatifid or cleft segments; flowers 3-5 cm. 

 broad, pink or white, racemosely clustered at the summits of the branches; pet- 

 als obcordate or emarginate, 5-8 times as long as the triangulate-ovate acute 

 calyx-lobes; carpels 15-20, densely hairy, rounded on the back. In waste places, 

 occasional in the Middle, Southern and Eastern States and in Canada. Adventive 

 from Europe. Plant with a faint odor of musk. Summer. 



6. Malva Alcea L. EUROPEAN MALLOW. (I. F. f. 2419.) Similar to the 

 preceding, but the stem-leaves are only once 5~7-parted or cleft, the lobes den- 

 tate or incised; pubescence shorter and denser; flowers pink, purplish or white; 

 petals obcordate; carpels glabrous, very finely rugose-reticulated. In waste places, 

 occasionally escaped from gardens. Introduced from Europe. Summer. 



3. CALLfRRHOE Nutt. 



Herbs with lobed or divided leaves, and showy perfect flowers. Bractlets of 

 of involucels 1-3, separate, or none. Calyx deeply 5-parted. Petals cuneate, often 

 toothed or fimbriate. Cavities of the ovary oo , i-ovuled ; style-branches of the 

 same number as the cavities of the ovary, stigmatic along the inner side. Carpels 

 10-20, i -seeded, beaked, the beak separated from the cavity by a septum. Seed 

 ascending. [A Greek mythological name.] A genus of about 7 species, natives of 

 the central and southern U. S. and northern Mex. 



Bractlets of the involucels none. 



Flowers 2-3 cm. broad ; carpels very pubescent. i. C. alceoides. 



Flowers 3-5 cm. broad ; carpels scarcely pubescent. 2. C. digit at a. 

 Bractlets of the involucels 3. 



Leaves triangular, crenate ; carpels not rugose. 3. C. triangulata. 



Leaves orbicular, palmatifid ; carpels rugose. 4. C. involticrata. 



1. Callirrhoe alceoides (Michx.) A. Gray. LIGHT POPPY-MALLOW. (I. F. 

 f. 2420.) Perennial, 2-5 dm. high, strigose-pubescent. Basal leaves triangular, 

 palmately lobed or incised, 5-9 cm. long, slender-petioled ; stem-leaves palmatifid, 

 the divisions linear or cuneate ; flowers corymbose or racemose at the summit, pink 

 or white ; pedicels slender ; calyx-lobes triangular, acuminate; petals dentate and 

 somewhat fimbriate; carpels rugose-reticulate on the back. In dry soil, Ky. to 

 Neb., Kans. and Tex. May-Aug. 



2. CallirrhoS digitata Nutt. FRINGED POPPY-MALLOW. (I. F. f. 2421.) 

 Similar to the preceding. Divisions of the stem- leaves longer, narrowly linear, 

 sometimes quite entire, sometimes deeply incised; flowers long-peduncled, reddish 

 purple or lighter; petals fimbriate; calyx-lobes triangular to lanceolate, acuminate; 

 carpels rugose-reticulate. In dry soil, Mo. and Kans. to Tex. April-July. 



3. CallirrhoS triangulata (Leavenw.) A. Gray. CLUSTERED POPPY-MAL- 

 LOW. (I. F. f. 2422.) Perennial, 4-7 dm. high, pubescent with short hairs. 

 Leaves triangular-hastate, the lower long-petioled, crenate or slightly lobed, 5-8 

 cm. long, the upper short-petioled or nearly sessile, smaller, 3 -5 -cleft or divided, 

 the lobes narrow, dentate or crenate; flowers 2-5 cm. broad, deep purple, in termi- 

 nal panicled clusters; involucels of 3 linear or spatulate bractlets, nearly as long as 

 the 5 -lobed calyx; carpels numerous, hairy, short-beaked. Prairies, Ind. to Minn., 

 N. C. and Tex. June-Aug. 



4. Callirrhoe involucrata (T. & G.) A. Gray. PURPLE POPPY-MALLOW. 

 (I. F. f. 2423.) Perennial, procumbent or ascending, 3-6 dm. long, pubescent 

 with long hispid hairs. Leaves cordate-orbicular, the lobes dentate or incised, 

 those of the upper leaves commonly narrower than those of the lower; stipules ovate, 

 conspicuous; penduncles slender, i -flowered; bractlets of the involucels 3. linear, 

 half the length of the lanceolate acute 3~5-nerved calyx-lobes; flowers red-purple, 

 2-6 cm. broad. In dry soil, Minn, and Iowa to Tex., Utah, N. Mex. and northern 

 Mex. April- Aug. 



4. NAPAEA L. 



Erect perennial herbs, with palmately-lobed leaves, and small white dioecious 

 flowers in ample terminal corymbose panicles. Involucels none. Calyx 5 -toothed. 



