244 BOTANY. 



glabrous, with the nerves of the upper surface puberulent, cordate, with an 

 acute sinus, broader than long, divided about -jf or more into 7 ovate or 

 ovate-lanceolate, incisely dentate, aristate lobes ; stipules (2-3" long) seta- 

 ceously divided; petioles about £-f the length of the leaf; cymes densely 

 many-flowered, short-peduncled, somewhat puberulent, with subulate-seta- 

 ceous, entire, or the lower ones setaceously ciliate, bracts ; sterile flowers 

 y long, with lanceolate, aristate, usually entire calyx-lobes, half as long as 

 the spatulate petals; 5 (or rarely 6) exterior and 3 longer interior stamens, 

 all united to about half their length, bearing equal, linear-oblong anthers; 

 calyx-lobes of fertile flowers broader, larger, spinulose-dentate; styles 3, each 

 with 2 oblong stigmas; capsule obtusely triangular, oblong, £' or more long; 

 seeds linear-oblong (4-5' long), with a large hoodlike, cut-fringed caruncle. — 

 Sulphur Springs, Arizona, Rothrock, 1874 (546), and to Southern New 

 Mexico and Chihuahua, Wislizenus. Leaves in the smallest specimens 

 (Wislizenus, Chihuahua) 2' long by 2J' wide, in Rothrock's largest 6' by 

 8', always with 7 lobes and usually with 2 smaller additional ones at 

 base. Evidently a form of the Mexican J. macrorhiza, and with the same 

 curious caruncle of the seed, distinguished bj T the longer petioles, the much 

 more deeply divided leaves, with more numerous and more deeply cut- 

 toothed lobes, and an acute (not wide or truncate) sinus Torrey's, J. mul- 

 tijida, Bot. Mex. Bound, p. 198 (not Linn.), is evidently the same thing, as 

 already suggested by the author himself, and probably nearer Bentham's 

 type than our plant, as the leaves are said to be only 3-5-lobed. 



Euphorbia (Anisophyllum) albomaeginata, Torr. & Gray in Pacif. 

 R. R. Report, 2, 174; Bot. Mex. Bound. 186 ; Boissier in DC. Prod. 15, 2, 

 30. — A prostrate, much branched, glabrous, glaucous perennial, with 

 orbiculate-cordate, entire, rather fleshy leaves (2-3" wide) and conspicuous, 

 triangular, membranaceous, whitish stipules ; involucres axillary, solitary, 

 ' or sometimes crowded into foliaceous cymules, broadly campanulate with 

 conspicuous, white, transverse, entire or undulate appendages of the glands ; 

 capsules triangular ; seeds reddish-gray, linear or oblong, smooth or some- 

 times very slightly undulate. — Zuni, Rothrock (173 in part), 1874, to Fort 

 Tejon, California (274), 1875, and generally from Western Texas to South- 

 ern California and into adjoining Mexico. A very distinct species, easily 



