96 
IOWA ACADEMY OF SCIENCES. 
G. quinqueflora Lam., var. occidentalis Gray. Borders of 
woods, becoming common. 
G. puberula Michx. Dry prairies, rare. 
G. andrewsii Griseb. Low prairies, infrequent. 
G. alba Muhl. Low ground, rare. 
POLEMONIACE^. 
Phlox paniculata L. Rare and probably escaped. Mr. J. R. 
Gardner, coll. 
P. maculata L. Low ground, infrequent. 
P. pilosa L. Low prairies, common. 
P. divaricata L. Woods, common. 
P. subulata L. In cemetery, probably escaped. 
Polemonium reptans L. Woods, abundant. 
HYDROPHYLLACE^. 
Hydrophyllum virginicum L, Woods, abundant. 
H. appendiculatum Michx. Low woods, rare. 
Ellisia nyctelea L. Moist, shady ground, common. 
BORRAGINACE^. 
Echinospermum virginicum Lehm. Woods, common. 
E, lappula Lahm. Waste ground, common. 
Mertensiavirginica (L.) D. C. Woods, abundant. 
Lithospermum officinale L. Border of woods, one patch 
known. Not previously reported in Iowa. 
L. latifolium Michx. Rare, Dr. C. C. Parker, coll. 
L. hirtum Lahm. Prairies, infrequent. 
L. canescens Lahm. Prairies, common. 
L. angustifolium Michx. High prairies, common. The form 
formerly considered a distinct species under the name of L. 
longijiorum Spreng, occurs commonly on hillsides and is quite 
distinct. 
Onosmodium carolimanum A. D. C., var. molle (Michx.) Gray. 
Waste ground, common. 
CONVOLVULACE^. 
Ipomoea coccinea L. Rarely escaped. 
I. purpurea Lam. Frequently escaped. 
Convolvulus sepium L. Low ground, frequent. 
G. arvensis L. In yards, rare. 
Guscuta injlexa Engelm. On various plants, infrequent. 
G. tenuiflora Engelm. On willows in low ground, frequent. 
G. glomerata Choisy. Low ground, probably rare. Mr. J. R. 
Gardner, coll. 
