RANUNCULACEAE. 



VOL. II. 



7. Delphinium tricorne Michx. Dwarf 

 Larkspur. Fig. 1876. 



Delphinium tricorne Michx. Fl. Bor. Am. i ; 314. 

 1803. 



Stout, glabrous or pubescent, simple, i-, 

 high. Leaves slender-petioled, deeply 5-7-cleft 

 or divided, the divisions linear or obovate. 

 obtuse, entire, or again cleft and toothed; 

 raceme loose, 4'-$' long, mostly several-flowered; 

 flowers i'-it' long, blue or white; spur generally 

 slightly bent, ascending, io"-i5" long; follicle? 

 3, widely spreading, 5"-6" long, tipped with a 

 short beak; seed-coat smooth, dark. 



Pennsylvania to the mountains of Georgia, west to 

 Minnesota, Nebraska and Arkansas. Roots tuberous. 

 April-June. 



13. ACONITUM [Tourn.] L. Sp. PI. 532. 1753. 



Tall or long, erect ascending or trailing perennial herbs, with palmately lobed or divided 

 leaves, and large irregular showy flowers. Sepals 5, the posterior (upper) one larger, hooded 

 or helmet-shaped. Petals 2-5, small, the two superior ones hooded, clawed, concealed in 

 the helmet, the three posterior ones, when present, minute. Stamens numerous. Carpels 3-5, 

 sessile, many-ovuled, forming follicles at maturity. [Ancient Greek name for these plants.] 



A genus of beautiful plants including some 70 species, mostly natives of mountainous regions 

 in the north temperate zone. Besides the following, several others are found in the Rocky Mountains 

 and on the Pacific Coast. Roots poisonous, as are also the flowers of some species. Type species: 

 Aconitum lycoctonum L. 



Flowers blue ; roots tuberous-thickened. 



Helmet arched, tipped with a descending beak. i. A. noveboracense. 



Helmet conic, slightly beaked. 2, A. uncinatitm. 



Flowers white; stem trailing; helmet elongated-conic. 3. A.reclinatum. 



i. Aconitum noveboracense A. Gray. New 

 York Monkshood. Fig. 1877. 



Aconitum noveboracense A. Gray ; Coville, Bull. Torr. 

 Club 13 : 190. 1886. 



Slender, erect, about 2 high, leafy. Lower 

 leaves all petioled, $'-4.' broad, nearly orbicular, 

 deeply 5-7-cleft, the divisions obovate, cuneate, 

 toothed and cut, acute or acuminate, glabrous, 

 rather thin ; upper leaves nearly sessile, 3-5-cleft, 

 otherwise similar, subtending branches of the 

 loose pubescent few-flowered panicle; flowers 

 blue, 6" broad, about i' high, the arched gibbous 

 helmet tipped with a prominent descending beak 

 about 3" long; follicles erect, 3" long, subulate- 

 beaked. 



Orange, Ulster and Chenango Counties, N. Y., 

 and Summit County, Ohio. Reported from Iowa. 

 Nearest A. paniculatum Lam. of central Europe. 

 June-Aug. 



