House: NortH AMERICAN CONVOLVULACEAE 149 
4. Stylisma villosa (Nash) 
Breweria villosa Nash, Bull. Torrey Club 22: 159. 1895. 
Type tocaLity: Near Eustis, Florida. 
DistRriIBUTION :. Dry soil, peninsular Florida. 
5. StyLisMA PickeRincu (M. A. Curtis) A. Gray, Man. ed. 2. 
326, 1860. 
Convolvulus Pickeringii M. A. Curtis, Bost. Jour. Nat. Hist. 1: 
129. 1837. 
Stylisma evolvuloides var. angustifolia Choisy, in DC. Prodr. g: 
480; 184s. 
Bonamia Pickeringii A. Gray, Man. ed. 5. 376. 1867. 
Breweria Pickeringii A. Gray, Syn. Fl. N. Am. 2: 217. 1878. 
Type LocaLity: New Jersey. 
DistriputTion: Sandy pine regions, New Jersey to Florida, 
Mississippi and Texas. Also reported from Illinois. 
6. StyLisMA AQUATICA (Walt.) Chapm. Fl. Southern U. S. 346. 
1860. : 
Convolvulus aquaticus Walt. Fl. Car. 94. 1788. 
Convolvulus erianthus Willd. ; Spreng. Syst. 1: 610. 1825. 
Bonamia aquatica A. Gray, Man. ed. 5. 3 76... 1867. 
Stylisma elliptica Raf. Fl. Tellur. 4: 55. 1836. 
Breweria aquatica A. Gray, Syn. Fl. N. Am. 2: 217. 1878. 
TyPE LOcALITy: Carolina. 
DistripuTion: In pine lands, Virginia to Florida and Texas. 
7. Stylisma rotundifolia (S. Wats.) 
Breweria rotundifolia S. Wats. Proc. Am. Acad. 23: 281. 1888. 
Evolvulus rotundifolius Haliier f. Bot. Jahrb. 70: 530. 1393- 
Type Locatity: Chihuahua, Sierra Madre, Mexico. 
Disrripution: In fields and thickets, pine plains, northern 
Mexico, In general appearances this species has a striking sim- 
ilarity to certain species of Evolvulus, especially A. prostratus 
Robinson, but the style has only the two divisions, typical of 
Stylisma. 
CLEMSON COLLEGE, SOUTH CAROLINA. 
