CATALOGUE. 303 



projecting beyond the scarious sinuses; calyx pubescent. — Southern Cahfornia 

 and Arizona ; Southern Utah, (Palmer.) 



Eriogonum corymbosum, Benth. T. 4- G., I. c, p. 170. (§ Corymbosa. 

 See Appendix, under Eriogonece.) Shrubby, lJ-2° high, floccose-wooUy, 

 the stout woody branches erect or assurgent, leafy to the top, terminated by 

 a broad full-flowered cyme upon a short or rather long peduncle ; leaves 

 oblong, subundulate, 8-18" long ; flowers white, Ih" long, usually rather thick 

 at base after flowering, glabrous within, segments obovate, inner ones at least 

 emarginate or retuse ; ovary often scabrous above upon the angles. Utah 

 (Fremont and Gunnison) and New Mexico. 



Eriogonum microthecum, Nutt. T. 4* G-, I. c, p. 170. Shrubby, rather 

 low, (rarely 1° high,) very much branched from the base ; tomentum floccose, 

 sometimes rather thin ; branches as in the last, but the cyme either crowded 

 or effuse ; leaves narrowly oblong and linear ; flowers white or rose-colored, 

 rarely dull-yellow, seldom over 1" in length, usually rather thick at base after 

 flowering, glabrous within, the segments and ovary as in the last. — In various 

 forms from Nebraska to New Mexico and west to Northern California and 

 Washington Territory. The typical form is low, with linear or linear-oblong, 

 (occasionally oblong,) nearly flat leaves, and open corymbose cymes on rather 

 long peduncles ; involucres 1-1 J" long ; uniformly rather slender and graceful 

 in habit. Frequent in the mountains from the Sierras to the "Wahsatch, espe- 

 cially in Nevada, with the blade of the leaves 6-12" long and 2-3" wide, 

 peduncles 2-4' long, and elongated leafy stems ; 5-9,000 feet altitude ; July- 

 September. (1,023.) 



A dwarf alpine form with the leafy stems but 1' long, peduncles i-2' 

 in length and small whitish or deep rose-colored cymes, was found on the 

 East Humboldt Mountains, at 10,000 feet altitude ; August. (1,024.) 



Rather imperfect specimens were collected at the base of the Pah-Ute 

 range, Nevada, at an unusually low elevation, more densely tomentose, the 

 stems and peduncles rather stout and strict and the branchlets of the loose 

 spreading cyme short and stiiF; flowers pale-yellow, few in the involu- 

 cres. (1,025.) 



Specimens from the Wahsatch at 6,000 feet altitude, with very short 

 (f ) leafy stems and slender almost scapelike peduncles, (4' long,) bright- 

 yellow flowers and rather oblong leaves, are intermediate between the typical 

 form and the following variety. (1,026.) 



