444 MINNESOTA BOTANICAL STUDIES. 
glabrous, deeply cleft into 3 to 7 wedge-shaped lobes, which 
are often trifid, petioles usually not dilated at the base: flowers 
medium in size, blue with upper petals yellow, sepals nearly 
equalling the spur in length; flowers on long, crowded, erect, 
pyramidal racemes: follicles 3, pubescent or smooth ; seed coats 
irregularly wrinkled. June to August. Borders of woods. 
Alabama and Carolina to Minnesota. 
25. D. Treleasei B. F. Busn, n. sp. 
Roots fascicled, rather fleshy: stem green, slender but erect, 
usually 2 to 4 feet high, simple or branched, glabrous through- 
out, somewhat glaucous: only 1 or 2 true stem leaves, basal 
leaves 2 to 5, 2 to 5 inches across, about 5-parted, and lobed 
into narrow segments with calloused tips; petiole of lowest stem 
leaf dilating : inflorescence open and somewhat branching ; pedi- 
cels long and very slender, ascending or spreading, pubescent on 
upper part; spurs and sepals about equal, blue, puberulent with- 
out; petals much shorter than sepals and very narrow; upper 
petals blue at the ends, lower ones blue with dense yellow beard ; 
spur straight, sometimes 2-lobed ;: sepals narrowly ovate ; bractlets 
very small and slender, usually not very close to the pubescent 
receptacle: follicles 3, not divergent, sparsely hairy; styles 
divergent, % the length of follicles; stigmas 2-lobed; seed 
coats dark brown, loose and much wrinkled. Collected by B. 
F. Bush (No. 73), May 28, 1898, Eagle Rock, Mo.; (No. 81) 
June 10, 1899, Forsyth, Mo. Common in barrens (f). 
This is perhaps most nearly related to D. Carolinianum. 
Besides the difference in floral characters the plant is glabrous, 
somewhat glaucous: roots fleshy, fascicled: racemes open: 
stem leaves about 2: follicles always 3. 
26. D. Carolinianum Watt. Fl. Carol. 155. 1788. 
D. azgureum Micux. Fl. 1: 314. 1803. 
iD orvescens NUTT. Genta: 246 Sic. 
D. azureum var. laxiflorum Hutu, Bot. Jahrb. 20: 450. 
1895. 
Stem 1% to 2% feet high, not much branched, plant some- 
what pubescent: leaves 3-5-parted, the divisions 3-5-cleft 
into usually linear lobes: spicate racemes slender, usually many- 
flowered: flowers small, azure-blue; spurs slender: 3 to 5 fol- 
licles, oblong, erect; seeds transversely wrinkled and rough- 
