282 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM. 



Basal leaves, as well as the whole plant, grayish. (Plants 

 taller). 



Pods widely spreading; plants very stout 7. C. aspera. 



Pods erect or ascending; plants slender. 



Clawsof the petals one-half longer than the sepals. 5. C.elata. 

 Claws of the petals little or not at all longer than 



the sepals 4. C. asperrima. 



1. Cheirinia bakeri (Greene) Rydb. Bull. Torrey Club 39: 324. 1912. 

 Cheiranthus aridus Greene, Pittonia 4: 198. 1900, not A. Nels. 1899. 

 Cheirdnthus baled Greene, Pittonia 4: 235. 1900. 



Erysimum bakeri Rydb. Bull. Torrey Club 33: 141. 1906. 



Type locality: Dry hills among nut pines and cedars at Aztec, New Mexico. 

 Type collected by Baker (no. 350). 



Range: Southwestern Colorado to western New Mexico and adjacent Utah and 

 Arizona. 



New Mexico: Aztec; Carrizo Mountains; Florida Mountains; mountains west of 

 San Antonio. Diy hills, in the Upper Sonoran Zone. 



A low (20 to 40 cm.) plant with sinuate-dentate leaves, occuring in the northwestern 

 part of the State. The type of Cheiranthus aridus was collected at Aztec by Baker. 



2. Cheirinia desertorum Woot. & Standi. Contr. U. S. Nat. Herb. 16: 125. 1913. 

 Type locality: Near Hachita, New Mexico. Type collected by Wooton, June 16, 



1906. 

 Range: Known onlj^ from t^-pe locality, in the Lower Sonoran Zone. 



3. Cheirinia inconspicua (S. Wats.) Rydb. Bull. Torrey Club 39: 323. 1912. 

 Erysimum parviflorum Nutt.; Torr. & Gray, Fl. N. Amer. 1: 95. 1838, not Pers. 



1807. 

 Erysimum asperum inconspicuum S. Wats, in King, Geol. Expl. 40th Par. 5: 24. 1871. 

 Type locality: Diamond Valley, Nevada. 

 Range : New Mexico and Kansas and northward . 



New Mexico: Dulce; White Mountains; Cloudcroft. Upper Sonoran and Transi- 

 tion zones. 



4. Cheirinia asperrima (Greene) Rydb. Bull. Torrey Club 39: 324. 1912. 

 Cheiranthus aspcrrimus Greene, Pittonia 3: 133. 1896. 



Erysimum aspeirimum Rydb. Bull. Torrey Club 33: 141. 1906. 



Type locality: None given, but jjlains of Wyoming indicated. 



Range: South Dakota to Arizona and New Mexico. 



New Mexico: Santa Fe; Las Vegas; Raton; Farmington; Ramah; Nara Visa; 

 Sandia Mountains; Magdaleiia Mountains; Mogollon ^fountains; Black Range; Organ 

 Mountains; Wliite and Sacramento mountains; Capitan Mountains. Hills, in the 

 Upper Sonoran and Transition zones. 



This and the next are the common plants of the middle elevations in the mountains 

 of the State. It is the plant which has • ordinarily passed as Erysimum asperum, 

 but it is much slenderer than that species, the leaves are mostly entire, and the pods 

 are. usually less stout and are erect or ascending, never strongly divaricate. 



6. Cheirinia elata (Nutt.) Rydb. Bull. Torrey Club 39: 323. 1912. 



Erysimum elaium Nutt.; Torr. & Gray, Fl. N. Amer. 1: 95. 1838. 



Cheiranthus elatus Greene, Pittonia 3: 135. 1896. 



Type locality: "Grassy situations by the banks of the Wahlamet." 



Range: North Dakota, Montana, and Washington, southward to the the moim tains 

 of Colorado and New Mexico, westward to California. 



New Mexico: Santa Fe and Las Vegas mountains; Sandia Mountains; Organ Moun- 

 tains; Jarilla Mountains; White Mountains. On hills, in the Transition Zone. 



