502 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Amarella strictiflora (Rydb.) Greene, Leaflets 1: 53. 1904. 
Gentiana acuta stricta Hook. Fl. Bor. Amer. 2: 63. 1838. 
Gentiana acuta strictiflora Rydb. Mem, N. Y. Bot. Gard. 1: 309, 1900. 
Amarella cobrensis Greene, Leaflets 1: 56, 1904. 
Type Locauity: ‘‘Canada to the Rocky Mountains and Slave Lake.”’ 
Ranae: 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 Amarella cobrensis was collected at Santa Rita (Greene in 1880). 
3. Amarella scopulorum Greene, Leaflets 1: 55. 1904. 
Amarella revoluta Greene, loc. cit. 
Type Locauity: ‘‘Rocky Mountain region from Colorado to Montana.”’ 
RanGeE: 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. Chondrophylla fremontii (Torr.) A. Nels. Bull. Torrey Club 31: 245. 1904. 
Gentiana fremontit Torr. in Frém. Rep. Exped. Rocky Mount. 94. 1845, 
Type Locauity: ‘‘Wind River Mountains.”’ 
RaNGE: Wyoming to northern New Mexico. 
New Mexico: Winsors Ranch; Costilla Valley. Moist meadows, in the Transition 
Zone, 
9. DASYSTEPHANA <Adans. CLOSED GENTIAN. 
Annuals, biennials, or usually perennials, with cpposite entire leaves, sometimes 
scabrous-ciliolate or erose, and usually 5-parted flowers variously arranged; calyx per- 
sistent, the lobes minute or foliaceous, smooth 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, romanzovit. 
Calyx scabrous; corolla not dotted, white or purplish, 
Corolla white, 3 cm. long or more......................--- 3. D, rusbyi. 
Corolla purple, 2 cm. long or less. 
Flowers in a short dense cluster; plants less than 15 cm. 
high........2..--22-2.-02---------222----------- 4. D. bigelovii. 
Flowers in an elongated raceme; plants more than 20 
em, high. ........... 02222 eee ee ee eee. 5. D. interrupta. 
