RANUNCULACEAE. 



[Vol.. II. 



3. Delphinium Carolinianum 



Walt. Carolina Larkspur. 



(Fig. 1564.) 



Delphinium Carolinianum Walt. Fl. Car. 

 155- 1788. 



Delphinium azurcutn Michx. Fl. Bor. Am. i: 

 314. 1803. 



Stem slender, more or less pubescent, 

 i-2 high. Leaves deeply cleft into 

 linear toothed or cleft segments; raceme 

 terminal, 4 / -8 / long; flowers pedicelled, 

 blue varying to white, about i' long, the 

 spur curved upward, 8" long; follicles 3, 

 erect or slightly spreading, downy, 7 // -o/ / 

 long, tipped with a subulate beak; seed- 

 coat rugose. 



Prairies and open grounds, Illinois t<> 

 Manitoba, south to Florida and Texas; also 

 in the Rocky Mountain region. May-July. 



4. Delphinium tricorne Michx. 



Dwarf Larkspur. 



(Fig. 1565.) 



Delphinium tricornc Michx. Fl. Bor. Am. i: 314. 

 1803. 



Stout, glabrous or pubescent, simple, i-3 

 high. Leaves slender-pctioled, deeply 5-7- 

 cleftor divided, the divisions linear or obovatc, 

 obtuse, entire, or again cleft and toothed; 

 raceme loose, 4 / -5 / long, mostly several-flow- 

 ered; flowers i'-\%' long, blue or white; spur 

 generally slightly bent, ascending, io"-i5" 

 long; follicles 3, widely spreading, $"-6" long, 

 tipped with a short beak ; seed-coat smooth, dark. 



Western Pennsylvania to the mountains of Geor- 

 gia, west to Minnesota and Arkansas. Roots tuber- 

 ous. April-June. 



13. ACONITUM 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 18 species, mostly natives of mountainous regions 

 in the north temperate zone. Besides the following, 2 others are found in the Rocky Mountains 

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



Flowers blue. 



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



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



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



