PAPAVERACEAE. 
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1. Argemone mexicana L. Introduced from Mexico and sparingly estab¬ 
lished from N. J. to Fla. and N. M. It has been reported from Colorado, 
but doubtful. 
2. Argemone intermedia Sweet. (A. platyceras Coult., in part) In sandy 
soil, on the plains and in the foot-hills, in canons and draws from S. D. to 
Wyo., Tex. and Mex.—Alt. 4000-7500 ft.—Dixon Canon; Spring Canon; 
Trinidad; Manitou; Black Canon; plains and foot-hills near Boulder; New 
Windsor; Ft. Collins. 
3. Argemone hispida A. Gray. (A. bipinnatidda Greene) On sandy soil, 
on the plains and in the foot-hills, from Wyo. to Utah and N. M.—Alt. 4500- 
9000 ft.—Ft. Collins; along Platte River, Denver; Huerfano Valley, near 
Gardner; Veta Pass; west of New Windsor; foot-hills, Colorado Springs; 
plains and foot-hills near Boulder; Redcliffe. 
Family 58. FUMARIACEAE. Fumitory Family. 
Capsule 2-valved, several-seeded. 1. Capnoides. 
Fruit globose, indehiscent, i-seeded. 2. Fumaria. 
1. CAPNOIDES Adans. Corydalis. 
Annual or biennial; corolla yellow. 
Bracts narrowly lanceolate; pod torulose, pedulous. 1. C. aureum. 
Bracts ovate-lanceolate, ovate or obovate; pod erect on curved pedicels, not 
torulose. 2. C. montanum. 
Perennials with thickened roots; corolla white or tinged with purple. 
3. C. Brandegei. 
1. Capnoides aureum (Willd.) Kuntze. ( Corydalis aurea Willd.) Among 
bushes, in open woods and on hillsides, from N. S. to Alaska, Pa. and Calif. 
—Alt. 4000-10,000 ft.—Dillon Canon, Trinidad; above Beaver Creek; Platte 
River Valley; Stove Prairie Hill; Trail Creek; near Boulder; mountains 
between Sunshine and Ward; Engelmann Canon; Ouray; Villa Grove; 
Georgetown; river bank near Ft. Collins; West Indian Creek; Green Moun¬ 
tain Falls; Cucharas Valley, near La Veta; South Park; Manitou; West 
Mancos Canon; Ward, Boulder Co.; Sapinero; Minnehaha; Marshall Pass; 
Pike’s Peak; mountain sides near Empire; Ute Pass; Walden, Larimer Co. 
2. Capnoides montanum (Engelm.) Britton. ( Corydalis aurea occidentals 
A. Gray; Capnoides pachylobum Greene) On river banks and in canons 
from S. D. to Utah, Tex. and Ariz.—Alt. 4000-8000 ft.—Trinidad; gulch west 
of Soldier Canon; Horsetooth Gulch; foot-hills of Larimer Co.; Howe’s 
Gulch; Los Pinos; hills southeast of La Veta; Arboles; near Boulder; Rist 
Canon; Spring Canon; Poudre flats; Trinidad; Manitou; mountains between 
Sunshine and Ward; New Windsor; Upper West Mancos Canon. 
3. Capnoides Brandegei (S. Wats.) Heller. ( Corydalis Brandegei S. 
Wats.) In the mountains of Colo, and Utah.—Alt. 9000-10,000 ft.—Leroux 
Creek; Crystal Creek; Ruby; near Pagosa Peak; Piedra Mountains. 
2. FUMARIA L. Fumitory. 
1. Fumaria officinalis L. Introduced from Europe and established locally 
from N. S. to Fla., Colo, and Tex.—Ft. Collins. 
