8o The Ohio Naturalist. [Vol. X, No. 4, 



Gentianales. 



Oleaceae. 



Fraxinus americana L. White Ash. (Ec.) (Horn.) Bark. 

 Fraxinus nigra Marsh. {F. sambucijolia Lam.) Black Ash. (Ec.) 



Bark. 

 Chionanthus virginicus L. Fringe tree. (Ec.) Root hark. 

 Ligustrum vulgare L. Privet. (Ec.) Leaves. 



Loganiaceae. 



Spigelia marylandica L. Indian Pink. (U. S. P.) (Ec.) (Horn.) 

 Rhizome and roots. 



Gentianaceae. 



Sabbatia angularis Pursh. Rose Pink. (Ec.) Herb. 

 Gentiana crinita Froel. Fringed Gentian. (Ec.) Root. 

 Gentiana quinquefolia L. Ague Weed. (Ec.) Root. 

 Gentiana andrewsii Griseb. Closed or Blind Gentian. (Ec.) 



Root. 

 Frasera caroliniensis Walt. American Colombo. (Ec.) (Hom.) 



Root. 



Menyanthaceae . 



Menyanthes trifoliata L. Buck Bean, Bog Bean. (Ec.) (Hom.) 

 Leaves and rhizome. 



Apocynaceae. 



Vinca minor L. Periwinkle, Myrtle. (Ec.) Rhizome. 

 Apocynum androsaemifolium L. Spreading Dogbane. (Ec.) 



Root collected in Autumn. 

 Apocynum cannabinum L. Indian Hemp. (U. S. P.) (Ec.) 

 (Hom.) Root collected in Autumn. 



A sclepiadaceae . 

 Asclepias tuberosa L. Pleurisy Root. (Ec.) Root. 

 Asclepias incarnata L. Swamp Milkweed. (Ec.) Root. 

 Asclepias syriaca L. {A. cornuti Des.) Milkweed. (Ec.) Root. 



Polemoniales. 



Convolvulaceae. 



Convolvulus arvensis L. Bindweed. (Hom.) Root, leaves and 



jloivers. 

 Convolvulus scammonia L. Scammony. (U. S. P.) (Ec.) (Hom.) 



Resinous exudation from the living root. 



Polemoniaceae . 

 Polemonium reptans L. Greek Valerian. (Ec.) (Hom.) Root. 



Hydrophyllaceae . 

 Hydrophyllum virginicum L. Water-leaf. (Hom.) Plant. 



