41 

 Arabis sabulosa var. frigida n. var. 



This has the pectinate stem leaves nearly like A. subpinnatifida 

 and linear-oblanceolate rosulate root leaves 1.5-3 cm. long, the 

 stem leaves barely auricled. Plants |-1 ft. high. Top of Diamond 

 Peak, Cal. June 28 1897, nearly alpme, Jones. Flowers barely 8 

 mm. long. 



Arabis sabulosa var. colorata n. var. 



Flowers purple, 12-18 mm. long. Petals 3-4 mm. wide, fully 3 

 times the sepals, including the short claws. Sepals linear ellipti- 

 cal, obtuse, very narrowly margined* 4-5 mm. long, colored. Ped- 

 icels slender, 10-12 mm. long, closely reflexed except in youngest 

 flowers. Pods appressed, straight, 4-5 cm. long, barely 2 mm. 

 wide, slightly narrowed at tip. Internodes about £ the leaves 

 which are barely auricled above. Stem leaves 4-6 mm. wide, 2-3 cm. 

 long. Root leaves linear-oblanceolate, mostly entire, as are the 

 stem leaves. Whole plant greener. This approaches A. Holbcellii. 

 Summit, Owen's Valley, Cal. to Weiser Idaho and northwestward. 

 Arabis pulchra Jones. As I have said above the young p< ds 

 are round and gradually flatten as they mature till at length they 

 are 3 mm. wide and 1 mm. thick, strongly nerved § the way tow- 

 ard the tip and with many ascending veinlets starting from the 

 sides and often uniting as pseudo-lateral nerves. The young pod* 

 are white with repeatedly forked fine hairs, and gradually become 

 nearly smooth with age, they are conspicuously truncate when 

 young and without any constYiction; the stigmatic knob remains 

 to the end, the mature pod becoming shortly-triangular with the 

 knob slightly separated from the rest by a minute necK. Th flow- 

 ers as^they mature become reflexedfby the pedicel turning down, 



at maturity the stout pedicels are closely reflexed and forming a 

 nearly straight line with the pods which are only lightly arcuate 

 and 4-5 cm. long on pedicels 10 15 mm. long in fruit (a little less 

 jn flower). The raceme is strict and mostly unbranched. Rarely 

 is even the stem branched at the base in the second year (it flow- 

 ers the second year), in older plants there are often several herba- 

 ceous ones form the woody base which is often 2 ft. long and 7 mm. 

 thick and with a bark. Naturally the herbaceous part is 1.5-2 ft. 

 high. The pubescence is short and close, never strigose. Flowers 

 bright-purple, about 10 mm. long. PetaN spatulate-ohlanceolate 

 and with the claws twice the elliptical and rounded ^pals whlch 

 are hoary and with narrow purple hyaline margins. Leaves all en- 

 tire. The root leaves slender, oblanreolate, petioled, 5-8 cm. long, 

 acutish. Stem leaves mostly broadly linear, closely sessile, and the 

 upper ones often with small auricles, 3-5 mm. wide, somewhat re- 

 duced above, thick. The type was gathered at Empire City Aev, 



