156 FLORA OF TEXAS. 



at the summit by 3-6 valves, which separate from the 

 filiform persistent placentae. Seeds globular, crested, pitted. 

 Glaucous herbs with yellow juice, sessile, pinnatifid, bristly 

 leaves, and showy white or yellow flowers. 



A. Mexicana, L. Annual. Leaves pinnatifid-lobed, 

 bristly and prickly, blotched with white, spinous on the 

 margin, and veins beneath. Stem 2°-3° high, branch- 

 ing, armed with prickly spines. Floivers axillary and 

 terminal on short peduncles 2'-3' in diameter, white or 

 yellow. All through Southern Texas and West to the Kio 

 Grande. 



ESCHSCHOLTZIA, Cham. 



Sepals 2, cohering by their edge, caducous. Petals 4. 

 Stamens indefinite, adhering to the claws of the petals. 

 Stigmas 4-7, sessile, 2-3 of them abortive. Capsule pod- 

 shaped, cylindric, 10-striate, many-seeded. Leaves pinna- 

 tifid, glaucous. The juice colorless and exhales an odor 

 of hydrochloric acid. 



E. DouGLASii, Hood. Stem branching, leafy ; torus ob- 

 conic; calyx ovoid, with a very short abrupt acumina- 

 tion; j9e^ff?,9, bright yellow, with an orange spot at base. 

 Eavines along the Rio Grande from Frontera to Eagle 

 Pass. — Torr. 



12. FUMITORY FAMILY. Order, Fumariace^. 



Herbs smooth, delicate, wath bristle stems, colorless juice. 

 Leaves alternate, multifid, often furnished with tendrils. 



Floivers irregular, purple, white, or yellow. 



Sepals 2, very small; ^jf^a?^ 4, h\^ogynous, more or 

 less grown together, the two outside ones larger with small 

 spreading tips ; the two inner small, with spoon-shaped 

 tips sticking together face to face, over the anthers and 

 stigma. 



