350 



CISTACEiE ; HYPERICACEiE. 



Latin Names 

 Viola, L., 

 V. pedata, L., 

 V. palmata. L., 

 V. cucullata, Ait., 

 V. sagittata, Ait., 

 V. hastata. Mich., 

 *V. tricolor, L., 

 Ionidium, Vent. 

 *I. stipulaceura, Nutt, . 



English Names. 

 . Violet. 



. Bird-foot Violet, 

 . Hand-leaf Violet, . 

 . Common blue Violet, 

 . Arrow-leaved Violet, 

 . Halbert-leaved Violet, 

 . Pansy, . 



Geologl Station. 



Natural Habitat. 



Sandstone, . Rocky prairies. 



u . . Shady places. 



. Open woods and hills. 



Sandstone, . Woody hills. 



Sandy, 



Fields and dry hills. 

 Plains of Red River. 



CistaceaB. Bock- Rose Family. 



Helianthemum, Tour., . Rock-rose. 



? H. Canadense, Mich., . Frost weed, . . Sandstone, 



*H. polifolium, T. & Gr., .... Sandy, 

 Lechea, L., . . Pinweed. 



L. major, Mich., Sand and chert, 



L. minor, Lam., " . 



Dry soil and rocks. 

 Dry sterile places. 



Dry woods. 



Sterile places. Hills. 



Drosera, L., . 



? D. rotundifolia, L , 



Droseracese. 1 



Sundew. 



Sundeiv Family. 



Bo^s. 



Parnassia, Tourn., 

 P. Caroliniana, Mich., 



Parnassieae. 



. Grass of Parnassus. 



Limestone, 



Mammoth Spring. 



Hypericaceae. 2 St. John's wort Family. 



Ascyrum, L., . . . St. Peter's wort. 



A. Crux-Andrea? , L , . St. Andrew's cross, . Sandstone, . Pine woods. 



Hypericum, L., . . St. John's wort. 



H. prolificum, L., Sandstone, . Shady, rocky banks. 



H. adpressum, Bart., Wet prairies. 



H. corymbosum, Muhl., . Woods and meadows. 



H. nudiflorum, Mich., Borders of swamps. 



H. mutilum, L., Limestone, . Banks and prairies. 



H. Canadense, L., Sandy, . . Roads on prairies. 



"*H.Drummondii,T.& Gr. 



Elodea, Pursh., . . Marsh St. John's wort. 



" X 'E. petiolata, Pursh., Swamps. 



1 No species of this family has been mentioned in Arkansas. But probably they have escaped obser- 

 vation. These small plants grow among mosses (Sphagnum) in bogs. 

 Q The sap of these plants is generally bitter, astringent and febrifuge. 



