292 BOTANICAL GAZETTE. [Nov., 
* Spur of corolla not very long: lateral petals usually bearded: stigma 
inflexed, a short scarious beak. (Canine.) 
' + Stipules from serrate to fimbriate-pinnatifid or pectinate. 
V. striata Ait. Stems 3-4-angled, ascending and at length a 
foot or more long, producing normal petaliferous flowers until 
midsummer or later: corolla yellowish-white ; lower petal striate 
with brown-purple lines; spur thick, rather shorter than the 
sepals: capsule ovoid.—An Atlantic and mostly northern species, 
extending along the mountains to Georgia, and westward only to 
Minnesota and Missouri. My JV. laciniosa of Japan is the anal- 
ogue of this rather than of any form of the next, with which 
aximowicz would associate it. 
V. canina L. Our forms of this collective species, none of 
them quite identical with European, may be grouped under the 
ollowing varieties : 
Yar. Muhlenbergii, the common Atlantic American Dog 
Violet, nearest to the Old World V. canina, var. sylvestris, may as 
well retain the name under which Torrey published it (as 
Muhlenbergit) in 1824, the same year in which it was named 
Muhlenbergiana in the Prodromus. The alpine and arctic form 
i uhlenbergii, var. minor Hook. Fl., bas recently been il- 
lustrated under this name by Lange in the Flora Danica, from 
Greenland. Dr. Engelmann detected a summer form of it on the 
sand-beaches of Lake Superior, answering to V. arenaria. Our 
plant is only spring-flowering; in summer it sends off prostrate 
stems bearing cleistogamous flowers. ; 
yar. multicaulis, the V. Muhlenbergii, var. multicaults 
Torr. & Gray, F]., and doubtless V. radicans DC 
Yar. adunea Gray. To this, the type of which is V. adunea 
of Smith in Rees’ Cyclopedia, I refer all the far western forms 
of the species, which differ from the eastern somewhat in habit, 
in less cordate leaves, and in the generally longer spur which 18 
isposed to be curved or hooked. ore southern and 
larger forms, which prevail in California, answer to V. longipes 
Nutt. _The smaller and higher northern form answers to Regel’s 
V. cantina, var. rupestris. 
