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SOLANACE.E; GENTIAN ACEjE ; ASCLEPIADACEiE. 381 



Latin Names. English Names. Geolog'l Station. Natural Habitat. 



*P. pubescens, L., Low ground. 



P. viscosa, L., Waste places. 



*P. pumila, Nutt., Arkansas. Nutt. Cat. 



*P. longifolia, Nutt., Sandy banks of Arkan. R. 



*P. mollis, Nutt., 



Datura, L., . . . Thorn apple. 



D. stramonium. L., 1 . " . Alluvial, . . Waste grounds. 



Gentianaceae. 2 Gentian Family. 



Sabbattia, Adans., . . Centaury. 



S. angularis, Pursh., 3 Prairies and low thickets. 



*S. campestris, Nutt., Prairies of Red River. 



Gentiana, L.,* . . Gentian. 



G. ochroleuca, Frcel , 5 Prairies around Fayettv'e. 



G. Andrewsii, Gris., Rich wet prairies. 



G. saponaria, L., .......... Woods and prairies. 



G. puberula, Mich., Cherty Limestone, Dry rocky prairies. 



Limnanthemum, Gmel., . Floating Heart. [i n .?« 



L. lacunosum, Gris., Ponds and bayous. Float- 



Asclepiadacese. 8 Milkweed Family. 



Asclepias, Tour., . . Milkweed. 



? A. cornuti, DC, Rich soil. 



A. variegata, L., Prairies.? (M. Cox.) 



*A. Nuttalliana, Tor., Prairies. 



*A. parviflora, Pursh., Sand, . . Barren. 



A. paupercula, Mich., Cherty Limestone, Dry barren. 



A. tuberosa, L., 7 . . Pleurisy root, Prairies and fields. 



*A. verticillata, L., Sandy, . . Dry hills. 



Apocynum. Tour., . . Dogbane. 



A. cannabinum, L., Thickets and roads, &c. 



Acerates, Ell., . . Green Milkweed. 



*A. viridiflora, Ell., Sand, . . Fields and dry hills. 



1 A poisonous plant introduced from Asia. Children have died from eating the seeds. The Tobacco, 

 Nicotiana rustica and JV. tabacum, are found around the plantation in woods and rich land. 



3 All the plants of this family have in their stems, leaves, and roots a very bitter principle, which 

 makes them useful as tonic, stomachic, and febrifuge remedies. 



3 Roots used as tonic and stomachic remedy. The four-angled stem, about one foot high, has oppo- 

 site oval and acute leaves, and deep rose-purple showy flowers, wheel-shaped, with five or six divisions. 

 Common. 



4 Fine blue or white funnel-form flowers, the last of the prairie flowers in the fall with the compositce. 

 Root very bitter. 



5 Not common in Arkansas. A specimen was brought to me at Fayetteville as a great remedy against 

 the Piles ! It is bitter and tonic, nothing else. 



s Some exotic species are used in medicine, but none of our American species. 



" A fine species, with long grapes of orange flowers. Common on the prairies. Its name, Pleurisy 

 root, comes from the sudorific property of its root, which is used in Pleurisy to excite the perspiration. 



