198 BRAINERD: CAULESCENT VIOLETS OF SOUTHEASTERN U. S. 
§3. Style much enlarged upward into a globose, hollow summit; stipules large, 
leaflike, pectinate at bas 
ite leaves entire, or obscurely crenulate; petals twice the crate 
of sepals. Rafinesquii. 
Upper aed plainly crenate; petals usually shorter than the sepals. _ arvensis. 
MIDDLEBURY, VERMONT. 
