OF ARTS AND SCIENCES. 339 



27. C. RiGiDUS, Nutt. Erect, 5 feet high, the branchlets tomentose ; 

 leaves 2-5 lines long, cuneate-oblong or usually very broadly obovate, 

 often emarginate, few-toothed above, very shortly petioled ; flowers 

 bright blue, in sessile clusters. — Abont Monterey and Oakland (?), 

 California; Nutiall, Douglas, Coulter (n. 125), and Ilartweg (n. 

 1G80). 



28. C. PKOSTRATUS, Bentli. Prostrate, nearly glabrous ; leaves 

 3-12 lines long, obovate or usually oblong-cuneate, spinose usually 

 only at the apex, on short slender petioles ; flowers bright blue, the 

 clusters on stout peduncles. — Frequent in the mountains from Hum- 

 boldt County and the Upper Sacramento to Mariposa County ; found 

 on both slopes of the Sierra Nevada. 



2. Descriptions of New Plants of Various Orders, from the Pacific 

 States and Western Territories, with a Synopsis of the Western 

 Species of Silene. 



Cle5iatis Fremontii. Stems stout, erect, clustered, 6-12 inches 

 high, leafy and usually branched, more or less villous- tomentose, espe- 

 cially at the nodes ; leaves simple, 3-4 pairs, coriaceous and with the 

 veinlets conspicuously reticulated, sparingly villous, sessile, broadly 

 ovate, entire or few-toothed, acutish, 2-4 inches long; flowers ter- 

 minal, nodding, the thick purple sepals an inch long, narrowly lanceo- 

 late, tomentose upon the margin, recurved at the tip, the peduncles 

 becoming erect in fruit; akenes silky, 3-4 lines long, the tails less 

 than an inch long, naked above, silky at base. — Tliis well-marked 

 species, the western representative of C. ochroleuca, was flrst collected 

 by Fremont (n. 194) on his second expedition, but without note of the 

 locality. It was rediscovered during the past season by Louis Wat- 

 son, M.D., in the neighborhood of Ellis, Kansas. 



Cardamine Breaveri. Perennial, glabrous or slightly pubescent 

 at base; stems weak and ascending, usually simj^le, a foot high; leaves 

 wilh 1-2 pairs of rounded or oblong leaflets, the terminal one much 

 larger, \-\ inch or more in diameter, entire or coarsely sinuate-toothed 

 or lobed, obtuse, often somewhat cordate at base, the radical leaves 

 mostly simple and cordate-reniform ; petals 2 lines long, white ; 

 pods 8-15 lines long, ascending on pedicels 3-4 lines long, obtuse or 

 scarcely beaked with a short style. — This species is allied to the Cal- 

 iforuian C. paucisecta, which has larger flowers and acutely beaked 

 pods on elongated pedicels. C. kirsuta and oligosperma have more 



