Contributions to Western Botany 39 
leaves ovate to irregularly oval, heart-shaped to truncate at 
base; flowers loosely cymose, short pedicaled, purple, 5” wide; 
stamens 5-8, much exserted; fruit obovate-oblong, smooth, 
rounded, narrow-ribbed; bractlets 3. Western Texas. 
11. Var. paniculata C. & F. Bot. Gaz. 17 348. Fl. Tex. 356. 
Panicle more diffuse; flowers minutely pubescent on the ribs; 
fruit purplish, pubescent, rugose between the ribs, tall plants. 
Western Texas. 
4A. Flowers panicled and more or less clustered at the ends, 
ew in the clusters. 
4AB. Fruit ten-ribbed, except perhaps the first. 
12. B. decumbens Vahl. Enum. 1 284. Glabrous, clusters 
arranged in an eplongated, spreading panicle with filiform 
peduncles; fruit obeconic, scarcely grooved, rounded at apex; 
flowers angular with glandular ribs. New Mexico and south- 
ward. 
13. B. erioselena Gray Am. Jour. Sci.2 15 322. Annual; 
glutinous above, erect; leaves fleshy, glabrous, very wide, dentic- 
ulate; flowers very hairy, cymose-panicled; fruit truncate. West- 
ern Texas. __ 
14. B. leioselena Gray Mex. Bound. 172. Perennial, glab- 
rous above, erect; leaves wide, glandular tubercled on both sides; 
panicles few-flowered toward the summit; flowers smooth. West- 
ern Texas. 
- 15. B. scandens L. Sp. Pl.3. B.GrahamiGray. Glabrous 
perennials climbing over weeds and brush; leaves heart-shaped 
to ovate, acute, short-petioled; flowers in umbels, 6-8, 2-4” long, 
_ greenish, the clusters more or less panicled; stamens exserted; 
pedicels 2-6” long; fruit linear-obovate, obscurely 10-ribbed, glab- 
rous except at the black-glandular tip. Grows in ravines and 
‘valleys of eastern New Mexico and southward. 
442B. Fruit fire-ribbed or angled. 
4A2BC. Annuals. 
