GENUS ii. 



CROWFOOT FAMILY. 



93 



2. Aquilegia brevistyla Hook. Small-flowered 

 Columbine. Fig. 1868. 



Aquilegia brevistyla Hook. Fl. Bor. Am. I : 24. 1829. 



Slender, erect, sparingly pubescent, branching, 6'-i8' 

 high. Basal leaves 2'-$' broad, long-petioled, biternate, 

 the ultimate leaflets nearly sessile, broadly obovate, 

 lobed and crenate; leaves of the stem few, nearly ses- 

 sile, lobed or divided ; flowers small, nodding, about as 

 broad as long (8"), blue or purple; spurs short, in- 

 curved, about 2" long; stamens and short styles barely 

 exserted; head of fruit erect; follicles slightly spread- 

 ing, 8" long, pubescent, tipped with a subulate beak 

 about 2" long. 



South Dakota to Alaska and British Columbia. June-July. 



3. Aquilegia vulgaris L. European Colum- 

 bine. Culverwort. Fig. 1869. 



Aquilegia vulgaris L. Sp. PI. 533. 1753. 



Stout, erect, pubescent or nearly glabrous, i-2 

 high, branching above. Basal and lower leaves 4'-6' 

 broad, petioled, 2-3-ternate, the lateral divisions 

 broadly obovate, obtuse, lobed and crenate, glaucous 

 beneath, dark green above ; the upper few, lobed or 

 divided; flower ii'-2' broad and about as long, 

 showy, blue, purple or white ; spurs 3"~4" long, stout, 

 strongly hooked; sepals spreading; stamens and 

 styles hardly exserted. 



Escaped from gardens into woods and fields, frequent 

 in the Eastern and Middle States, in Nova Scotia and 

 New Brunswick. Adventive or naturalized from Europe. 

 Blue-bells. Lady's-shoes. Capon's-tail. Cock's-foot. 

 Snapdragon. May-July. 



12. DELPHINIUM L. Sp. PI. 530. 1753. 



Annual or perennial erect branching herbs, with racemose or paniculate showy flowers. 

 Leaves palmately lobed or divided. Sepals 5, the posterior one prolonged into a spur. 

 Petals 2 or 4, small, the two posterior ones spurred, the lateral, when present, small. Carpels 

 few, sessile, many-ovuled, forming follicles at maturity. [Latin, from the supposed resem- 

 blance of the flowers to a dolphin.] 



A genus of beautiful plants, with large irregular flowers, comprising some 125 species, natives of 

 the north temperate zone. Besides the following, many others grow in western North America and 

 several in the mountains of Mexico. Type species : Delphinium Consolida L. 



Delphinium Consolida L., a European species which has a glabrous style and capsule, is widely 

 recorded as naturalized in the eastern United States, and was admitted into our first edition ; but 

 all specimens examined prove to be D. Ajacis. 



Annual ; pistil i ; plant pubescent. i. D. Ajacis. 



Perennials ; pistils 3. 



Follicles erect or nearly so. 



Leaf-segments broadly cuneate-obovate or cuneate-oblanceolate ; plant glabrous. 



2. D. exaltatum. 

 Leaf-segments linear. 



Panicle pyramidal ; plant glabrous. 3. D. Treleasei. 



Panicle narrow ; plants pubescent or puberulent, at least above. 



Raceme open ; roots tuberous. 4. D. Nelsoni. 



Raceme strict : roots not tuberous. 



Flowers bright blue : bractlets close to the calyx. 5. D. carolinianum. 



Flowers bluish-white ; bractlets distant from the calyx. 6. D. vircscens. 



Follicles widely divergent. 7- D. tricorne. 



