OP ARTS AND SCIENCES. 193 



summit of the style to the base. — Rocky banks of the Trask River, 

 Tillamook County, Oregon ; discovered by T. Howell and L, F. 

 Henderson, in July, 1882. Near S, Kamtschatica, Pall., from which it 

 differs in its pubescence, more developed petiolar leaflets, sessile 

 petals, longer styles, and more villous carpels. 



RiBES AMBiGUUM. Intermediate between R. Afenziesn and H. Lob- 

 bit, having the spinose fruit of the one and the obtuse anthers of the 

 other. Glandular-pubescent and villous, especially on the petioles 

 and peduncles : leaves larger, 1 to 2 inches in diameter; stijjular spines 

 rather short : flowers smaller, the calyx 3 or 4 lines long above the 

 ovary, greenish, more or less villous : stamens equalling or scarcely 

 exceeding the white petals, the light-colored anthers very small, obtuse, 

 smooth : fruit densely covered with long spines. — On Scott Mount- 

 ains, Northern California, at 8,000 feet altitude, trailing over rocks, 

 with the flowers very villous (Rev. E. L. Greene, August, 1876) ; on 

 Mount Adams, Washington Territory, at 5,000 feet altitude (W. N. 

 Suksdorf, 1882). 



Seddm radiatum. Stems from a branching rooting caudex, 

 decumbent at base, 3 to 6 inches high : leaves oblong to oblong-ovate, 

 obtuse or only acutish, somewhat clasping by the narrower base, 3 to 

 6 lines long, delicately nerved when dry : flowers sessile ; sepals short 

 and triangular ; petals yellow, narrowly lanceolate, acuminate, 3 lines 

 long : carpels broad and with the beaks abruptly divergent and hori- 

 zontal in fruit. — In the Coast Ranges of California ; on Gavillan 

 Peak, Monterey County (742 Brewer) ; Sonoma County (J. W. 

 Congdon) ; Trinity County (V. Rattan) ; Mendocino County (6566 

 Bolander). Resembling S. Douglasii (for which it has been mistaken, 

 and which has not yet been found in California), but with very differ- 

 ent foliage. This is the fourth species of the group with divaricately- 

 beaked carpels. 



Gayophytum pumilum. Closely resembling low forms of G. ra- 

 cemosum, 6 inches high or less, glabrous or very nearly so, and 

 somewhat strict : flowers less than a line broad : capsule erect, very 

 shortly pedicellate, 6 lines long by half a line broad or more, the 

 numerous seeds oblique in the cells. — From San Bernardino Coun- 

 ty, California, to Washington Territory; collected by Dr. Torrey, 

 Kellogg, Lemmon, Parry, Rattan, and Suksdorf. In G. racemosum 

 the capsules are more narrowly linear, usually fewer-seeded, and the 

 seeds erect or nearly so. 



Eryngium discolor. Stem erect, very slender (2 feet high), sim- 

 ple and monocephalous, or rarely sparingly branched : radical leaves 



VOL. XVIII. (n. s. X.) 13 



