138 



that with the winged marg^in; seeds almost straight, 



short-clavate, minutely hairy, that in the larger cell 

 somewhat larger, the two caruncle-lobes narrow, curved, flex- 

 uous, those of the larger seed about half as long as the seed, 

 those of the smaller seed shorter. 



Texas. — '' Western Texas to El Paso, N. Mexico/' 1849, 

 Charles Wright, No. 100, (type o{ P. scoparia. var. mnlticanlis. 

 Gray); ''El Paso," 1881, G. R. Vasey, (No. 39)?; '* Summit 

 of Organ Mts." 1881, J. G. Lemmon. 



Neiv Mexico, — 1851, C. Wright, No. 934; *' Guadalupe 

 Pass, Sonora," 1852, No. 934. Arizona. — Oak Creek, 1883, 

 H. Pi. Rusby, No. 526; Foothills of the Santa Rita Mts., 1884, 

 C. G. Pringle; ** near Benson," 1880. Mexican Bound. Sur- 

 vey, Dr. C. C. Parry and others, No, 193. 



25. p. HEMIPTEROCARPA, A. Gray, PI. Wright, ii. 31, (1853). 



I 



Glabrous, or somewhat puberulcnt below; stems, often 

 many from the same woody rootstock, erect, striate or angled, 

 6'-2^ high, usually sparingly branched above, branches fas- 

 tigiate; leaves alternate, mostly erect, subulate-linear, acute, 

 ^'-l' long; racemes i'-4' long, often loosely flowered toward 

 the base; bracts deciduous; flowers whitish, at length pendu- 



lous; wings i^^-2'^ long, obovate or oval, narrowed into a 

 short claw at the base, much shorter than the mature capsule; 

 crest of keel made up of several thickish processes; stamens 

 eight in number; style much as in the preceding species; 

 mature capsule compressed, oblong-ovoid, 2^''-2^^'' long, the 

 upper cell larger and furnished with a conspicuous wing on 

 the margin from base to tip, which in some cases is almost 

 Yz^^ broad; seeds straight, clavate, hairy, unequal in size, that 

 in the larger cell larger, its two caruncle-lobes long, narrow, 



curved, flexuous, about two-thirds the length of the seed, that 

 in the smaller cell smaller, apparently undeveloped, its two 

 caruncle-lobes very short. 



Texas. -^^ * Dist. by P. V. LeRoy." Nciv Mexico,— 1 8 5 l, C. 

 Wright, No. 937, (type). Arizona. — Santa Rita Mts,, 1884, 

 C. G. Pi-ingle, (dist. as P. alba, Nutt. or P.scoparia, H. B. K); 



