1887. | BOTANICAL GAZETTE. 
Raceme virgate, usually elongated and many-flowered : 
sepals oval, 4 or 5 lines long, hardly longer than 
petals or spur. 
Raceme of few to several large flowers: sepals orbicu- 
lar-obovate or oval, 5to 9 lines long, much sur- 
passing the petals: follicles turgid. 
* * * Fasciculate-tuberous or grumous roots, i. e. a clus- 
ter of globular or oblong testiculate or sometimes 
palmate tubercles, bearing only fibrous rootlets. 
+ Raceme spiciform and yirgate, many-flowered, with 
erect or appressed pedicels shorter than the spur: 
stems strict. 
Tall, somewhat velvety-pubescent: calyx externally 
pubescent. 
Lower, glabrous or infl puberulent: leaves 
thickish. 
“+ Raceme loose, few-many- flowered: pedicels 
spreading or ascending, comparatively long, never 
appressed, 
_ Long and lax, lower often 2 inches long : leaf lobes 
all narrow : follicles oblong-cylindraceous, half to 
three-fourths inch long, at maturity almost 
always widely recurving: flowers large and not 
numerous. 
Aninch or less long, rarely longer : follicles oblong, 
hardly over half inch long or shorter, mostly 
erect: herbage glabrous or nearly so. 
Spur not longer than sepals, thickish: lower 
leaves with broad or broadish divisions. 
Spur longer than sepals, slender. 
Low, or slender and few-flowered: leaf- 
lobes all or mostly linear: sepals 8 or 4 
lineslong: root-tubercles disposed to be 
fusiform. 
Strict, 2 feet high, with rather many-flow- 
ered raceme: leaf-lobes lanceolate: pe- 
tals all bright blue. 
Such a key is far from satisfactory. 
D. HESPERRIUM., 
D. VARIEGATUM. 
D. SIMPLEX. 
D. pisTicHuM, 
D, MENZIESII. 
D. DECORUM. 
D. PAUCIFLORUM, 
D. NuTTALuu. 
