468 PROCEEDINGS OF THE AMERICAN ACADEMY 



from a branching caudex, slender, glabrous above : lower leaves 

 spatulate-oblanceolate, rarely with one or two teeth, 6 to 9 lines long, 

 the petiole sometimes ciliate, the cauline oblong-lanceolate, auriculate, 

 mostly glabrous or nearly so : flowers small, rose-colored, the sepals 

 pubescent : pods ascending or widely spreading on short pedicels 

 (1 to 3 lines), glabrous, curved, 1 or 2 inches long by | of a line 

 wide, more or less attenuate to a sessile stigma or short style : seeds 

 in one row, orbicular, narrowly winged. — A canescetis, and var. 

 Intifolia, Watson, Bot. King Exp. IG, and Bot. Calif. 1. 32, 2. 431. 

 In the mountains from western Wyoming (Parri/), Montana (Rich- 

 ardson, Watson, Canby), and British America (Bow River Pass and 

 Silver City, Macoim), to northern Nevada (Watson) and California 

 (Lemmon, Mrs. Austin), and Washington Territory (Mt. Adams, 

 Suksdorf). 



Arabis Parishii. Low and cespitose (2 to 4 inches high), very 

 finely stellate-pubescent throughout, the simple slender stems from 

 a much branched caudex : leaves entire, the lower numerous, linear- 

 oblanceolate, 6 lines long or less, the cauline few, linear, not auricu- 

 late : flowers rose-color, 3 or 4 lines long : pods glabrous, ascending 

 on pedicels 2 or 3 lines long, an inch long (including the elongated 

 filiform style) by a line broad, attenuate above ; valves 1-nerved and 

 veined : seeds somewhat 2-rowed, elliptical, narrowly winged. — In 

 Bear Valley of the San Bernardino Mountains, California, at 6,500 

 feet altitude (S. B. Parish, June, 1886). 



Arabis pulchra, M. E. Jones in herb. Perennial, canescent 

 throughout with a fine stellate pubescence, the stems erect (a foot 

 high) from a branching w^oody base : leaves entire, not rosulate at 

 base nor auriculate, the lower narrowly oblanceolate (1 or 2 inches 

 long), the upper linear-lanceolate : flowers usually large (3 to 7 lines 

 long) and deep rose-color, soon spreading or reflexed : pods pendent 

 on pedicels 3 or 4 lines long, finely pubescent, \\ to 27^- inches long 

 by 1^ lines wide, the valves 1-nerved and veined, and stigma sessile : 

 seeds small, in two rows, orbicular, winged. — Valleys of western 

 Nevada (Stretch, Shoc/dei/, Jones), to San Bernardino and San Diego 

 Counties, California (G. 7?. Vasey, Parish Brothers, W. G. Wright). 

 It has been considered a doubtful variety of A. arcuata. 



TuELYroDiuM stenopetalum. Biennial, glabrous, branching 

 from the base, the slender erect or ascending stems 1 or 2 feet hiiih : 

 leaves all entire, glaucous, narrowly oblanceolate to linear-lanceolate, 

 strongly auriculate at base, acutish, 2 inches long or less : racemes 

 elongated, the spreading pedicels 2 or 3 lines long : calyx very nar- 



