e 
e 
57 
Plants growing in wet places and сае flowers often darker toward the 
whiter bas. Oe os ee es h Blue Violet. dora cucullata.) 
. Plants growing in moist woods and me: ores ws, not in swamps.......... UH. 
. Flowers deep violet-purple; stalks of flower usually 2 in. or iios long. 
y Blue Violet. (Viola palmata.) 
. Flowers violet, not purplish; of Mei 2 in. or more long 
w Blue Violet. (Viola papilionacea.) 
M 
. Plant hairy; leaves rather ovate.. .Ovate-leaved Violet. (Viola fimbriatula.) 
Plant not hairy; leaves lanceolate to arrow-shaped. 
Arrow-leaved Violet. (Viola sagittata.) 
Flowers usually 1 in. or more broad; plant escaped from cultivation 
Heart's-ease. (Viola tricolor.) 
Flowers lm thun i mn. brodo iu ey LIO V abro AEN Rb ek 174. 
Flowers blue or жан pur elongated. i us а Lu e „з. 175. 
Flowers whitish or faintly tinged with violet on the outside........... 176. 
Spur about $ in. long, as long as the petal. 
ng-spurred Violet. (Viola rostrata.) 
Lon 
. Spur about } in. long, half as prea as the petal. 
rican rede Violet. (Viola conspersa.) 
Corolla with a spur at the base...Blue Toadflax. (Linaria canadensis.) 
Corolla not with a spur at the аве: 22:57 oeste Esc 178. 
Adlof stem lodves alternates i. o... crc oue шыу Wes cx iae 179. 
т all of stem leaves opposite or in whorls..................... 181. 
uam ея the flowers scarlet, very conspic 
Scarlet MEE: i XE coccinea. d 
b.. Bracts subtending the flowers not scerlet.............:.5 2. eee wee 
. 2. 
б с 
Leaves pinnately lobed or divided. 
Wood Betony. (Pedicularis canadensis.) 
. Leaves not pinnately lobed nor divided. 
Chaff-seed. (Schwalbea americana.) 
Leaves in a whorl near the summit of the stem. 
F ed Milkwort. (Polygala paucifolia.) 
; Leaves opposite, rarely in whorls. irisse eas Дориана 182 
yx with a protuberance on the upper side. 
Skullcap. (Scutellaria таа 
b. Calyx not with a protuberance on the upper ѕійе.................... 
Р 
rr eS Pe 
e 
Flowers solitary or few together іп the axils, not in racemes........... "e 
Flowers «ос rangok Be Та ОРИ Оа IU. а да 191. 
W 
Flowers less Vs iin 1 in. long, usually as broad as long............... 189. 
Plants creeping, with rounded or ——— leaves... lu 186. 
Plants erect or ascending, leaves not гоипаей..................... 187. 
Upper lip of corolla 2-lobed or notched; алың about 15-nerved 
Ground Ivy. deni hederacea.) 
. Upper lip of corolla entire; calyx 5-nerved. 
Henbit. (Lamium amplexicaule.) 
