OF ARTS AND SCIENCES. 291 



back. — On Table Mountain of the Monitor Range, N. Nevada, at 

 10,000 feet altitude ; Prof. C. S. Sargent, 1878. 



Silene Grayii. Low and alpine (3 to 6 inches high), cespitose, 

 grayish-puberulent : leaves oblanceolate, 6 to 8 lines long: flowers 



2 or 3 : calyx broadly cylindric, with deep-rounded teeth, 5 or 6 lines 

 long : petals rose-color, 7 or 8 lines long, the broad blade bifid to the 

 middle with a prominent tooth on each side ; claw broad with narrow 

 entire auricles ; appendages broad, entire or nearly so : capsule short, 

 nearly sessile. — Mount Shasta, near snow; "VV. H. Brewer, 18G2 

 (n. 1373) ; Hooker & Gray, 1877 ; A. S. Packard, Jr., 1877. 



Psoralea castorea. Stems very short from a tuberous root, 

 decumbent ; the whole plant covered with white straight closely 

 appressed rather rigid hairs : leaves digitately 3-5-foliolate, on stout 

 petioles 2 or 3 inches long ; leaflets cuneate-obovate, rounded or acutish 

 at the apex, less pubescent above, an inch long ; stipules ovate- 

 lanceolate, scarious, persistent : peduncles shorter than the petioles : 

 spike rather dense, about an inch long, with conspicuous foliaceous 

 bracts as long as the calyx (4 or 5 lines), spatulate and abruptly 

 acute : calyx-lobes linear, acuminate, nearly equalling the blue petals : 

 pod thin, lanceolate, 5 lines long : seed compressed, nearly 2 lines 

 long. — Near Beaver City, S. Utah, on sandy ridges ; Dr. E. Palmer 

 (n. 96, 1877). Belonging with the next to the P. esculenta group, 

 and distinctly marked by the large foliaceous bracts. 



Psoralea mephitica. A similar species, softly pubescent through- 

 out and villous with more or less spreading hairs : leaflets 4 or 5, 

 obtuse or refuse : stipules broadly ovate : peduncles about equalling 

 the petioles : flowers on very short slender pedicels in a close raceme 

 an inch long : bracts mostly scarious, ovate, acuminate or acute, rather 

 shorter than the calyx (4 to 6 lines) : calyx-lobes linear to oblong- 

 lanceolate, lax, equalling the blue petals : pod small, somewhat 

 chartaceous, villous above. — Same locality ; Dr. E. Palmer (n. 97, 

 1877), who describes it as having the odor of the skunk. 



Vicia Reverchoni. Annual, pubescent with spreading hairs, the 

 decumbent stem angled and narrowly winged, a foot high : leaflets 



3 or 4 pairs on a broad rhachis, cuneate-oblong or the lower obovate, 

 rounded or truncate and mucronate at the summit, 4 to 7 lines long : 

 flowers solitary, small (3 lines long), light blue, the narrow acuminate 

 calyx-teeth about equalling the tube : pod pubescent, shortly pedicellate 

 on a peduncle an inch long or more, 10 to 15 lines long by 2 lines 

 broad, 10-15-seeded. — On sandy prairies near Dallas, Texas; J. 

 Eeverchon, April, 1877. 



