502 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



2. AmareUa strictiflora (Rydb.) Greene, Leaflets 1: 53. 1904. 

 Gentiana acuta stricla Hook. Fl. Bor. Amer. 2: 63. 1838. 



Gentiana acuta strictiflora Rydb. Mem. N. Y. Bet. Gard. 1: 309. 1900. 



AmareUa cobrensis Greene, Leaflets 1: 56. 1904. 



Type locality: "Canada to the Rocky Mountains and Slave Lake." 



Range: British America to California and New Mexico. 



New Mexico: Jemez Mountains; Santa Fe and Las Vegas mountains; Taos Moun- 

 tains; Carrizo Mountains; Baldy; Santa Rita; Capitan Mountains; White Mountains. 

 Meadows in the mountains, Transition to the Arctic-Alpine Zone. 



The type of AmareUa cobrensis was collected at Santa R,ita (Greene in 1880). 



3. AmareUa scopulorum Greene, Leaflets 1: 55. 1904. 

 AmareUa revoluta Greene, loc. cit. 



Type LOCAtrrY: "Rockj^ Mountain region from Colorado to Montana." 



Range: Montana and South Dakota to Arizona and New Mexico. 



New Mexico: Rio Pueblo; Santa Fe and Las Vegas mountains; West Fork of the 

 Gila; Jemez Mountains; White and Sacramento mountains. Mountain meadows, in 

 the Transition Zone. 



The type of A. revoluta was collected in the White Mountains ( Wooton 552). 



8. CHONDROPHYLLA (Bunge) A. Nels. 



Small annual or biennial, less than 10 cm. high, with single or several stout stems; 

 leaves numerous, small, opposite, with white scarious margins; flowers solitary, ter- 

 minal; calyx narrow, 4 or 5-toothed; corolla salverform when expanded, plicate at the 

 sinuses with broad emarginate lobes or plaits, without crown or glands; anthers cor- 

 date, versatile. 



1. ChondrophyUa fremontii (Torr.) A. Nels. Bull. Torrey Club 31: 245. 1904. 



Gentiana frcinontii Torr. in From. Rep. Exped. Rocky Mount. 94. 1845. 



Type locality: "Wind River Mountains." 



Range: Wyoming to northern New Mexico. 



New Mexico: Winsors Pi.anch; Costilla Valley. Moist meadows, in the Transition 



Zone. 



9. DASYSTEPHANA Adans. Closed gentian. 



Annuals, biennials, or usually perennials, Avith opposite entire leaves, sometimes 

 scabrous-ciliolate or erose, and usually 5-parted flowers variously arranged; calyx per- 

 sistent, the lobes minute or foliaceous, smootli and glabrous or scabrous-ciliolate; 

 corolla salverform, funnelform, or clavate, without glands at the base of the tube or 

 filaments at the base of the lobes, the lobes erect, converging, plaited in the sinuses; 

 stamens with converging or cohering anthers; capsules stipitate. 



key to the species. 



Floral leaves broadened, more or less scarious; flowers deep purple. 2. D. parryi. 

 Floral leaves narrow, green; flowers not deep purple. 



Calyx glabrous; corolla white with purplish dots 1. D. romanzovii. 



Calyx scabrous; corolla not dotted, white or purplish. 



Corolla white, 3 cm. long or more 3. D. rushyi. 



Corolla purple, 2 cm. long or less. 



Flowers in a short dense cluster; plants less than 15 cm. 



high 4. 1). bigelovii. 



Flowers in an elongated raceme; plants more than 20 



cm. high 5. I), interrupta. 



