Vor. II.] MALLOW FAMILY. 419 
3. Callirrhoé triangulata (Leav- 
enw.) A. Gray. Clustered Poppy- 
Mallow. (Fig. 2422.) 
Malva triangulaia Yeavenw. Am. Journ. 
Sci. 7:62. 1824. 
Callirrhoé triangulata A. Gray, Mem. Am. 
Mem. Acad. (II.) 4:16 1848. 
Perennial, erect or ascending from a 
deep root, 1%4°-2'4° high, branched above, 
pubescent with short hairs. Leaves tri- 
angular-hastate, the lower long-petioled, 
crenate or slightly lobed, acute or obtus- 
ish, 2’-3’ long, the upper short-petioled 
or nearly sessile, smaller, 3-5-cleft or di- 
vided, the lobes narrow, dentate or cre- 
nate; flowers in terminal panicled clusters, 
1/-2’ broad, short-pedicelled, deep purple; 
involucel of 3 linear or spatulate bractlets, 
nearly as long as the 5-lobed calyx; car- 
pels numerous, hairy, not rugose, short- 
beaked. 
Prairies, Illinois to Minnesota, south to 
Texas. June-Aug. 
4. Callirrhoé involucrata (T. & G.) 
A. Gray. Purple Poppy-Mallow. 
(Fig. 2423.) 
Nuttallia involucrata Nutt.; Torr. Ann. Lyc. N. Y. 
2:172. Name only. 1828. 
Malva involucrata T. & G. Fl. N. A. 1: 226, 1838. 
Callirrhoé involucrata A. Gray, Mem, Am. Acad. 
(II.) 4:16. 1848. 
Perennial, branched from a deep root, pro- 
cumbent or ascending, 1°-2° long, pubescent 
with long hispid hairs. Leaves cordate-orbicu- 
lar, palmately lobed or palmatifid, the lobes ob- 
tuse or acute, dentate or incised, those of the 
upper leaves commonly narrower than those of 
the lower; stipules ovate, conspicuous; pedun- 
cles terminal and axillary, slender, 1-flowered; 
bractlets of the involucel 3, linear, half the 
length of the lanceolate acute 3-5-nerved calyx- 
lobes; flowers red-purple, 1/-214’ broad; carpels 
rugose-reticulate. 
In dry soil, Minnesota to Texas, Utah and New 
Mexico and northern Mexico. April—Aug. 
4. NAPAEA L, Sp. Pl. 686. 1753. 
Erect perennial herbs, with palmately-lobed leaves, and small white dioecious flowers in 
ample terminal corymbose panicles. Involucels none. Calyx 5-toothed. Staminate flowers 
with 15-20 anthers borne at the summit of the stamen-column. Pistillate flowers with 
8-10 styles, stigmatic along their inner surface, the stamen-column present but destitute of 
anthers. Cavities of the ovary as many as the styles, t-ovuled. Carpels 8-10, separating at 
maturity from the axis, beakless, but minutely tipped, imperfectly 2-valved. Seed ascend- 
ing. [Greek, a dell.] 
A monotypic genus of the east-central United States. 
