320 FUMARIACEAE 



petals; filaments united above the middle. Ovary with two parietal placentae; 

 style filiform. Fruit an elongated 2-valved capsule. Seeds numerous, crested. 

 [Corydalis Vent.] 



Annuals or biennials. 



Plants low, ascending or diffuse; corolla yellow. 

 Pod glabrous. 



Bracts narrowly lanceolate; pod pendulous, torulose. 1. C. aureum. 



Bracts ovate-lanceolate, ovate, or obovate; pod erect, not torulose. 



2. C. montanum. 



Pod covered with translucent vesicles. 3. C. crystallinum. 



Plants erect, tall, usually 3-6 dm. high; corolla rose or purplish, with purple tips. 



4. C. sempervirens. 

 Perennials with thickened roots; corolla white or tinged with purple. 



Bracts spatulate or oblanceolate, about 1 cm. long; dorsal crest of the hood narrow. 

 Sepals reniform, laciniate. 5. C. Cusickii. 



Sepals narrowly hastate, with large toothed basal lobes. 6. C. hastatum. 



Bracts linear; dorsal crests of the hood obsolete. 



Corolla 2 cm. long; sepals broadly ovate, obtuse, their auricles subentire; pod 



lance-obovoid. 7. C. Brandegei. 



Corolla 1.5 cm. long; sepals ovate, acute, their auricles toothed; pod broadly 

 obovoid. 8. C. br achy car pum. 



1. C. aureum (Willd.) Kuntze. Glabrous and more or less glaucous annual 

 or biennial, diffusely branched, 1-4 dm. high; racemes 1-5 cm. long; leaves 

 thrice pinnate; corolla 12-15 mm. long, golden yellow; spur one-half to two- 

 thirds as long as the body, curved downward; pods 2-3 cm. long, about 2 mm. 

 thick. Corydalis aurea Willd. C. Engelmanii, C. macrorrhiza, and C. Albertae 

 Fedde. River banks, hillsides, and open woods: N.S. Pa. Tex. Calif. 

 Alaska. Plain Mont. My-Au. 



2. C. montanum (Engelm.) Britton. Glabrous and glaucous biennial, 

 branched at the base, 2-5 dm. high; leaves as in the preceding; corolla 15-20 mm. 

 long, golden yellow; spur usually almost as long as the body, decidedly saccate 

 at the end and somewhat turned upward; pod usually curved at the base, 2-3 

 cm. long, 3 mm. thick. Corydalis aurea occidentalis Engelm. C. curvisili- 

 quaeformis, C. bilimbata, and (?) C. hypecoiformis Fedde. River banks, canons, 

 and copses: S.D. Tex. Ariz. Utah; Mex. Plain Submont. Mr-Au. 



3. C. crystallinum (Engelm.) Kuntze. Glabrous and slightly glaucous 

 annual, branched at the base, 1-3 dm. high; leaves thrice pinnatifid, with oblong 

 small divisions; bracts ovate or ovate-lanceolate; corolla golden yellow, 12-15 

 mm. long; spur nearly as long as the body; pod erect, about 2 cm. long and 3 

 mm. thick. Fields and open grounds: Mo. Ark. Kans. Mont. Plain 

 Mont. Ap-Je. 



4. C. sempervirens (L.) Borkh. Glabrous and glaucous biennial, simple, 

 3-6 dm. high; leaves twice or thrice pinnatifid, with obovate divisions; racemes 

 3-10 cm. long; corolla 12-15 mm. long; spur short, one-third as long as the body 

 or less; pod ascending, 3-4 cm. long, 1.5 mm. thick. Corydalis glauca Pursh. 

 Rocky woods: N.S. N.C. Mont. B.C. Alaska. Plain Boreal. My-Au. 



5. C. Cusickii (S. Wats.) Heller. Stout glabrous perennial, 6-15 cm. high; 

 leaves thrice pinnatifid, 2-10 dm. long; ultimate divisions ovate or lanceolate, 

 acuminate; corolla with the spur about 2 cm. long, white or lilac, with the tips 

 of the inner petals violet; capsule ellipsoid, 1-1.5 cm. long. Mountains along 

 water-courses: e Ore. Ida. Submont. Je-Jl. 



6. C. hastatum Rydb. Glabrous green perennial, 1-1.5 m. high, branched 

 above; leaves 2-4 dm. long, thrice pinnatifid; ultimate divisions elliptic or oval, 

 mucronate; corolla with the spur 15-18 mm. long, salmon-pink; hood barely 

 crested. (?) Corydalis Hendersonii Fedde. Along water-courses: Ida. Wash. 



7. C. Brandegei (S. Wats.) Heller. Glabrous perennial, scarcely glaucous, 

 6-15 dm. high; leaves 2-3 dm. long, thrice pinnatifid, with oval or obovate, 

 mucronate divisions; corolla 2 cm. long, with almost erect spur; pods pendent, 

 1.5 cm. long, 4 mm. thick. Mountains: Colo. n N.M. Mont. JeAu. 



8. C. brachycarpum Rydb. Glabrous and glaucous perennial, with a 

 thick root; stem 3-6 dm. high, branched above; leaves 2-3 dm. long, thrice pinna- 

 tifid; ultimate divisions lanceolate or lance-elliptic; corolla yellowish, the inner 



