Rydberg : Rocky Mountain flora 677 



flowers, the smaller fruit with broader, flattened prickles. In L. 

 occidentalis the prickles are only slightly broadened below, not 

 flattened, and strongly grooved on the inside. 



Arizona: Tucson, Apr. 20, 1894, Toiumy (type, in herb. N. 

 Y. Bot. Gard.) ; vicinity of Flagstaff, June 16, 1898, MacDougal 

 122 ; CHfton, Apr., 1881, Rusby 281. 



Utah: St. George, 1877, Palmer ^^g. 



Eremocarya muricata sp. nov. 



Annual ; stem slender, branched throughout with ascending 

 branches, strigose ; leaves linear, 2—5 mm. long, hispidulous, the 

 hairs with pustulate bases ; racemes short and dense, usually less 

 than I cm. long ; bracts oblong, 1—2 mm. long ; sepals linear, 

 obtuse, 1.5 mm. long, hispidulous on the margins and midvein ; 

 corolla white, i mm. long; limb scarcely 0.5 mm. wide; nutlets 

 lanceolate in outline, long-acuminate, dull, finely muricate. 



This species is somewhat intermediate between Evcniocafya 

 micrantha and E. Icpida. It resembles the former most in habit, 

 but differs in the more ascending branches, the shorter leaves, 

 and especially in the narrower, muriculate and dull, instead of 

 smooth and shining, nutlets. The latter resemble much those of 

 E. lepida, but are narrower and more tapering upwards. E. Icpida 

 has much broader leaves and larger flowers. 



Utah : Southern Utah, 1874, Parry 16^ (type, in herb. Co- 

 lumbia Univ.). 



Arizona : Near Camp Lowell, Apr. 13, 1881, Pringlc ; Pres- 

 cott, \d>2>T), Rnsby y^j ; Tucson Mountains, Apr. 12, 1903, Thorn- 

 ber ; Plains of Tucson, Apr., \Z^\, Leninion 20J ; Mesa, near 

 Tucson, May 14, 1883, Pringle ; Apr. 25, 1906, Shear 42jj ; 

 Tucson, Apr. 3, 1894, Toiimey. 



Greeneocharis circumscissa (H. & A.) Rydb. comb. nov. 



Lithospcrui2nn{f) circuinscissum H. & A. Bot. Beech. 370. 

 1840. 



Piptocalyx circumscissus Torr. ; S. Wats. Bot. King's Exp. 

 240. 1 87 1. 



EritricJiiinn circumscissinii A. Gray, Proc. Am. Acad. 10 : 58. 

 1874. 



Krynitzkia circumscissa A. Gray, Proc. Am. Acad. 20: 275. 

 1885. 



