POLYPETALOUS EXOGENOUS PLANTS. 181 



Leaves divided nearly to the base, stellately hirsute on both 

 surfaces. Flowers axilhiry in the uppermost leaves, about 

 ly in diameter, scarlet; peduncle IJ -2' long. Sepals very 

 hirsute, lanceolate, united only a little above the base. 

 Ovaries 15-20. Stigmas simple. Carpels lunate, point- 

 less. — Drummond. 



M. DiGiTATA. Glaucous and nearly glabrous; leaves 

 deeply 6-7 parted; segments linear, entire, or 2- rarely 

 3-cleft, the uppermost entire ; floiudrs few, solitary, or some- 

 what paniculate, on elongated peduncles; calyx naked, 

 glabrous, roots tuberous, somewhat fusiform. Stems 2°-4° 

 high, terete, slender, with a few branches toward the sum- 

 mit. Floiuers 1^-2' in diameter, purple. Segments of the 

 calyx ovate-lanceolate, acuminate. Petals crenulate at 

 the summit. Perennial. — Dritinmond, 



CALLIRRHOE, Nutt. 



Involucel 1-3-leaved and persistent, or none. Petals 

 wedge-shaped, entire or crenate. Styles as in Malva. Car- 

 pels numerous, with a short and naked beak, and a ligulate 

 dorsel process below the beak within. Enibryo curved. 



Radicle inferior. Perennial herbs. Leaves palmately- 

 lobed, or angled. Floivers showy, purple or whitish. 



C. TRIANGULATA, Gray. Rough-pubescent. Stem as- 

 cending from a perpendicular rhizoma, branching above; 

 leaves triangular, coarsely and unequally crenate, the low- 

 est ones long-petioled and cordate, the upper ones 3-5- 

 lobed; flowers approximate, panicled, longer than the pedi- 

 cels ; involucel 3-leaved, the leaves linear ; carpels at length 

 2-valved. Stem 2°-3° high. Floivers l'-l|-' wide, purple. 



0. PAPAVER, Gray. Rough with scattered appressed 

 and rigid hairs ; stems low, simple ; leaves 3-5-parted ; the 

 lobes oblong or lanceolate, toothed or entire ; floioers few, 

 solitary, axillary, long-pediincled ; involucel 1-3-leaved, or 

 none ; petals finely crenate ; carpels indehiscent. Rich open 



