12 
lected along the Rio Grande by Wright in 1848, somewhere above Presidio de Rio 
Grande, and probably to be found on the Texan side. 
2. C. elegans Greene, A slender species: leaves not as large as in the last, with 
broader sinus, entire or obscurely crenate, apt to be purple beneath, and the sepals 
with purple lines: petals acute or acuminate, tinged with blue. (Nymphaa elegans 
Hook.)—A beautiful blue water-lily, found in lagoons, etc., along the Brazos and Rio 
Grande, and presumably in intermediate localities. 
3. C. Mexicana. Leaves more nearly round and thicker, with narrow sinus, entire 
or crenate, and conspicuously reticulated beneath: sepals not streaked, and petals 
light yellow, obtuse or acute. (Nymphoa Mexicana Luce, )—In lagoons along the lower 
Rio Grande. This yellow water-lily is very near the C. flava Greene of Florida, of 
which it may be but a form. 
4. NYMPHZA Tourn. (YELLOW POND-LILY. SPATTER-DOCK.) 
Flowers yellow, sepals 5 or 6 or more, colored (or partly green out- 
side) and roundish or concave, petals numerous but small and stamen- 
like and inserted with the very numerous short stamens under the 
ovary, and not surpassing the disk-like radiate sessile stigma. 
1. N. advena Ait. Floating or emersed and erect leaves thick, from roundish to 
ovate or oblong, the sinns open or closed or narrow; thin submersed leaves seldom 
present: sepals 6, unequal: petals shorter than the stamens: stigma 12 to 24-rayed, 
pale red: fruit ovate, about 3.7 em. long. (Nuphar advena Ait. f.)—Common in still 
or stagnant waters. 
PAPAVERACER. (Poppy FAmIty.) 
Herbs with milky or colored juice, regular 2 or 4-merous flowers, fuga- 
cious sepals, early deciduous showy petals, numerous stamens, a dry 
many-seeded pod.like fruit, and alternate leaves without stipules. Our 
two genera are annuals. 7 
1. Argemone. Leaves simple, prickly-toothed : sepals distinct: capsule oblong 
or ovoid, prickly: juice yellow. 
9. Eschscholtzia. Leaves finely dissected : sepals united into a narrow pointed 
cap: capsule linear, grooved: juice colorless. 
1. ARGEMONE L. (PRICKLY POPPY.) 
Stout glaucescent annuals, with sinuately pinnatifid prickly toothed 
leaves, large brightly colored flowers, 2 or 3 spinosely beaked sepals, 
4 to 6 petals, and a prickly 1-celled pod opening at the top. 
1. A. platyceras Link & Otto. Erect, 3 to 7.5 dm. high, hispid throughout or 
armed with rigid bristles or prickles: leaves 7.5 to 15 cm. long, the lower attenuate 
to a winged petiole, the upper sessile or auriculate-clasping: flowers white, 5 to 10 
em. in diameter. (A. hispida Gray).—Abundant in the valleys and along dry hill- 
sides. Var. ROSEA Coulter has bright rose-purple petals: so far reported only from 
near the coast (vicinity of Corpus Christi) and from adjoining Mexico. 
9. A. Mexicana L. Similar, but smoother, having leaves blotched with white, 
and petals usually yellow.—Dry hillsides and valleys throughout southern Texas and 
southward. 
