374 PROCEEDINGS OF THE AMERICAN ACADEMY 



tliiu, pinnately nerved, nearly glabrous above, somewhat pubescent 

 beueath, especially on the nerves, ovate to oblong-ovute, acuuiiuate or 

 acute, au inch or two long including the sliort slender petiole, or some- 

 times smaller, not glandular at base; stipules obsolete: racemes ter- 

 miual, unisexual, few-flowered: calyx nearly glabrous, of the pistillate 

 flower narrow and spreading: stamens about 15: styles bifid, slender: 

 capsule finely pubescent, subglobose : seed smooth, glabrous, nearly 3 

 lines long. — Northwestern Sonora, in a low range of hills about thirty 

 miles from the coast; C. G. Priugle, 1884. Allied to C. Cortesianus, 

 Kunth. 



Si'BASTiANiA (?) IJILOCULARIS. A mona'cious shrub, with light 

 gray bark, glabrous : leaves alternate, linear-oblong or narrowly lan- 

 ceolate, 1 or 2 inches long, obtuse or acute or acuminate, abruptly con- 

 tracted at base into a very short petiole, obscurely glandular-toothed, 

 often bi^landular at base : inflorescence terminal, the staminate spikes 

 (9 to 12 lines long) bearing a single pistillate flower at base : staminate 

 flowers 4 or 5 together in the naked scattered bracts, the thin calyx 

 3-parted ; stamens 2 : ovary 2-celled, with two stout exserted revolute 

 stigmas ; capsule smooth, thin-crustaceous, broadly ovate, acute, bi- 

 coccous, about 5 lines long, the 2-valved cocci separating from a thin 

 flat 2-nerved imperfect columella : seed subglobose, estroj)hiolate, 3 lines 

 broad. — In dry water-courses on the hills and mountains of Xorth- 

 western Sonora; on hills between Rayon and Ures, Dr. G. Thurber, 

 1853 (Saphini salicifolium, Torr., Bot. Mex. Bound. 201, not II BK.) ; 

 C. G. Pringle, 1884. Described as 10 to 20 feet high, with upright 

 slender branches ; called " Yerba de fleche " by the Papago Indians, 

 who say that the Apaches used to poison their arrows with its milky 

 juice. Aside from the bilocular ovary, the estrophiolate seed, and the 

 peculiar columella, its characters accord with those of the genus as 

 defined by Bentham «Ss Hooker. 



IIeciitia Texknsis. Dioecious: leaves 18 inches long or le>s, 

 H to 2 inches broad at base, white-scurfy beneath, glabrous above, 

 with 10 to 12 large distant variously curved teeth on each margin: fer- 

 tile flowering stem 2 to 4 feet high, bearing a simple pubescent panicle 

 2 feet long, the branches ascending: flowers solitary and sessile along 

 the branches, subtended by a broadly deltoid-ovate scarious brownish 

 bract: sepals broadly ovate, acute, 2 lines long, brownish and nerved ; 

 petals white, 4 lines long, oblong-obovate, nerved : stamens none : ovary 

 and stigmas pubescent: capsule glabrate, 5 lines long: staminate inflo- 

 rescence unknown. — On limestone bluffs in the Great Bend of the Rio 

 Grande, W. Texas ; Dr. V. Ilavard, August, 1883. The species of 



