Contributions to Western Botany. 41 
nutely pubescent or viscid, stems straight; leaves ovate-oblong to 
ovate-lanceolate, mucronate, acute at base, smooth, white be- 
neath, slender petioled; peduncles solitary, two-cleft, mostly 
shorter than the leaves; flowers minute; stamens 3; fruit clavate, 
acutish, with glandular ribs. Western Texas. 
4A8B. Fruit 3-5-winged or almost paccsed in the first, obpy- 
ramidal, truncate; probably all annual 
21. B.intermedia n.sp. Slender annual; notat all glandular, 
slightly pubescent below; leaves elliptical to oblong lanceolate, 
obtuse, apiculate, whiter below, slender petioled, rounded at base, 
about 1’ long, sinuate on the margins, not black-dotted; branches 
panicled, with a single filiform peduncle in most lower axils 
about 6-12” long, but above dichotomously cymose-panicled, the 
ultimate peduncles 4-6” long, peduncles bearing 2-5 umbellate; 
cainpanulate flowers about 1” long, which equal the ovaries; 
stamens included; fruit not contracted to a stipe, on a filiform 
pedicel, about 4” long, ribs raised into pseudo wings, narrower 
than the body, rugulose between the angles. El Paso, Texas. 
Distributed as B. erecta, No. 4173, Jones. See Fie. 
22. B. triquetra Wats. Proc. A. A. 24 71. Low, puberulent 
and viscid; leaves lanceolate, pedicels very short; flowers pink, 
1” long; stamens 2, included; fruit 1°’ long, very acutely 3-4 
angled, sides rugose, not contracted into a stipe. Gulf of Cali- 
fornia. 
23. B.alata Wats. Proc. A. A.24 69. Puberulent, reddish; 
leaves narrowly oblong to linear, or lower ones broader; flowers 
Joosely panicled, solitary, clustered on slender pedicels, 1-3” long; 
Stamens 5, included; fruit nearly 2” long, rather broadly 5- 
winged, the wings often broader than the body. Guaymas, 
Mexico. 
24. B. pterocarpa Wats. Proc. A. A. 17 376. Nearly 
smooth, prostrate or widely spreading and low annual; leaves 
ovate, acute, short petioled, less than 1’ long, with undulate 
‘ Margins, white below; stems pubescent; flower clusters in pani- 
