37 



■ 



ding that my name would be respected if he found it was surely 

 new when he came to revise the genus. Later on he kept the pact 

 and also made new species out of three or four others! This and 

 similar occurrences jarred my confidence in the great superiority 

 of the judgment of any closet botanist. Watson I still consider 

 one of America's four (Gray, Engelmann, Torrey, Watson in or- 

 der of ability, and amount of work) greatest botanists, but he did 

 not work up to his normal standard in Arabis, probably from lack 

 of material as well as field study. An item pointing this way is in 

 at least three species where he gives the pod only £ as long as it is, 

 and pedicels of A. pulchra are given as f line long instead of 3-4 

 lines long, etc., the latter may be a clerical error. It is not my in- 

 tion to publish a revision of the genus just now, but rather to de- 

 scribe some forms that appear new. 



Arabis Brucae n. sp. 



Related to Holbcellii. Csespitose perennial from a long and erect 

 tap root. Crowns about 6 mm. thick, fdensely covered with manj? 

 rosulate root leaves which are 4.6 cm. long and linear-oblaneeo- 

 late, acutely slender- petioled, entire, acutish, thin, about 5 mm- 

 wide. Stem leaves narrowly oblong, not reduced above, about 1 cm. 

 long and 3 mm. wide, obtuse, sessile except the lowest, not auricled. 

 Stems with inflorescence 1.5 dm. long, slender, erect, few, arising 

 from the side of the crown. Inflorescence not fully developed, the 

 upper part still in flower, deltoid in outline. Lower pedicels elon- 

 gating, ascending, 1.5 cm. long, slender; the upper floral ones 2-3 

 mm. long. Pods smooth, relatively few- seeded, strict, about 6 cm 

 long and f mm. wide, shortly acuminate but stigma nearly sessile 

 seeds appearing nearly in a single row. Flowers bright-pink, 1 cm 

 long. Petals oblanceolate to spatulate, about 3 times the green 

 ish sepals. Whole plant smooth, with the appearance of a Car 

 damine. Hills near Davis Creek Cal., June 1898,) in? flower only 

 part of Mrs. Bruce's No. 2251. Summit Cal. Nevada Co. July 10 

 1904 Jones, fruit not fully mature. 



salubris 



i 



Densely caespitose perennial, hoary throughout, except the pod 

 with compact and much branched short hairs (pods smooth). The 

 crowns rather woody nearly round with many thick and linear-ob- 

 lanceolate and entirelleaves acute at tip and with short and nar- 

 row petioles. Root leaves 2-3 cm. long and 3 mm. wide. Stem 

 leaves slightly reduced above, broadly linear, acute, entire, the 

 uppermost only with minute ears, sessile, about 2 cm. long and 3 

 mm wide. Stems about 1.5 dm. long, erect stout below, mostly 

 paniculately branched. Pedicels stout, ascending, at maturity a- 



