106 CRUCIFERACEAE (MUSTARD FAMILY) 



C. Spurs divergent; corolla 12-16 mm. long, white or pinkish. E. 



D. cucullaria (DUTCHMAN'S BREECHES) 

 CC. Spurs not divergent; corolla 18-25 mm. long, white. U. 



D. pauciflora (WHITE BLEEDING-HEART) 

 BB. Corolla 2-saccate at base, pink. C. E. 



D. uniflora (I-FLOWERED BLEEDING-HEART) 

 AA. Flowers in a thyrsus, pink. W. C. E. D. formosa 



CORYDALIS (CORYDALIS) 



Leaves basal or cauline. Flowers in racemes, terminal or opposite the 

 leaves. One petal of. the outer pair spurred ; inner petals narrow. Cap- 

 sule linear or oblong, 2-valved. (Gk. korydalos = the crested lark ; 

 said to be suggested by the spurs.) 



A. Flowers pink or white, or light yellow with bluish tips; perennial; capsule oval 



or oblong. 



B. Leaves many-pinnatifid; flowers pink. W. C. scouleri (PINK CORYDALIS) 



BB. Leaves 2-3-pinnatifid; flowers salmon-pink or yellow. 



C. Leaves 3-pinnatifid; flowers salmon-pink; sepals hastate. E. C. hastatum 

 CC. Leaves 2-pinnatifid; flowers yellow; sepals laciniate-reniform. E. 



C. cusickii 



AA. Flowers golden yellow; annual or biennial; capsule linear or nearly so. 

 D. Capsule incurved-ascending; seed acute-margined. E. C. montana 



DD. Capsule spreading or pendulous; seed obtuse-margined. E. 



C. aurea (GOLDEN CORYDALIS) 



CRUCIFERACEAE (MUSTARD FAMILY) 



Herbs, rarely shrubby at base, with mustard or turnip taste. 

 Leaves alternate. Flowers perfect, solitary or clustered. Sepals 4, 

 deciduous. Petals 4, rarely none, alternate with the sepals. Sta- 

 mens 6, tetradynamous, rarely only 2 or 4. Ovary 2-celled by a 

 partition from one lateral placenta to the other, rarely only i -celled; 

 style o-i. Fruit a pod, indehiscent or 2-valved from the base. 

 Difficult family, and should not be attempted without flowers and 

 mature pods. Some difficult genera are not carried to species. 

 (F. & R. pp. 176-191.) 



A. Leaves palraately-compound or -lobed or -toothed. GROUP 1, L (p. 107) 



AA. Leaves not palmately veined, or if so merely serrate. 

 B. Basal leaves 2-4.5 dm. long, not pinnately compound nor pinnatifid. 



GROUP 1, K (p. 107) 



BB. Basal leaves smaller, often pinnately compound or pinnatifid. 

 C. Flowers solitary on a scape. GROUP 2, KK (p. 108) 



CC. Flowers in racemes or heads. 



D. Pod transversely divided into 2 terete or slightly flattened or angular seg- 

 ments or joints, indehiscent, upper joint the larger; plant glabrous; leaves 

 entire or sinuate-toothed. GROUP 1, Y (p. 107) 



DD. Pod or plant or leaves not as in D. 



