WOOTON AND STANDLEY FLORA OF NEW MEXICO. 279 



10. Draba patens Heller, Bull. Toney Club 26: 624. 1899. 



Type locality: White Mountains, New Mexico. Type collected by Wooton (no. 

 275). 

 Range: White and Sacramento mountains of New Mexico, in the Transition Zone. 



11. Draba mogolloiiica Greene, Bot. Gaz. 6: 157. 1881. 



Type locality: Northward slopes of the Mogollon Mountains, New Mexico. Type 

 collected by E. L. Greene, April 18, 1880. 



Range : Mountains of southwestern New Mexico. 



New Mexico: Bear Mountain; Mangas Springs; Magdalena Mountains; Mogollon 

 Mountains. Upper Sonoran Zone. 



The plant is a perennial but blooms the first year. The pods are typically glabrous, 

 but sometimes they are pubescent. 



12. Draba petrophila Greene, Pittonia 4: 17. 1899. 



Type locality: Ledges of the Santa Rita Mountains, southern Arizona. 

 Range: Mountains of Arizona and New Mexico. 

 New Mexico: San Luis Mountains {Mearns 2206). 



13. Draba gilgiana Woot. & Standi. Contr. U. S. Nat. Herb. 16: 124. 1913. 

 Type locality: Organ Peak in the Organ Mountains, New Mexico. Type col- 

 lected by Wooton & Standley, September 23, 1906. 



Range: Mountains of southern New Mexico. 



New Mexico: Organ Mountains; Tortugas Mountain. Transition Zone. 



19., ARABIS L. Rock cress. 



Annuals or perennials, glabrous or pubescent, with entire or toothed leaves more 

 or less rosulate at the base, the cauline leaves usually smaller, sessile, sometimes 

 clasping; flowers white, rose-colored, or purple; siliques long-lineai', flattened par- 

 allel to the septum, the valves one-nerved; seeds winged or marginless. 



KEY to the species. 



Pods erect. 



Seeds broadly winged; none of theleavescoarsely hirsute, the 

 basal ones sometimes with a few hairs; plants glau- 

 cous 1 . A. oxyphylla. 



Seeds not winged ; at least the lower leaves coarsely hirsute ; 



plants bright green 2. A. ovata. 



Pods reflexed or spreading. 



Leaves hispid on the margins, the faces usually stellate- 

 pubescent 3. A.fendleri. 



Leaves not hispid on the margins, but the faces stellate- 

 pubescent. 



•Pods pubescent; flowers 12 or 13 mm. long 4. A. formosa. 



Pods glabrous; flowers 6 mm. long or less. 

 Sepals stellate-pubescent. 



Leaves finely and densely stellate-pubescent.. . 5. A. eremophila. 

 Leaves coarsely and loosely stellate-pubescent. . S. A. consanguinea. 

 Sepals glabrous. 



Pods 45 to 60 .mm. long, 1 mm. wide, green, 



curved upward 6. A. angulata. 



Pods 35 mm. long, 1 .5 mm. wide, purple, straight 



or curved downward 7. A. porphyrea. 



