76 The Ohio Naturalist. [Vol. X, No. 4, 



Rutaceae. 



Xanthoxylum americanum Mill. Prickly Ash. (U. S. P.) (Ec.) 



(Horn.) Bark. 

 Ptelea trifoliata L. Shrubby Trefoil. (Ec.) (Horn.) Bark of the 



root. 



Simarubaceae. 



Ailanthus glandulosa Desf. Chinese Tree of Heaven. (Ec.) 

 Inner bark. 



Polygalaceae. 



Polygala senega L. Senega Snake-root. (U. S. P.) (Ec.) (Horn.) 

 Root. 



Eiiphorbiaceae . 



Euphorbia maculata L. Spotted spurge (Ec.) Bark of root. 

 Euphorbia corollata L. Flowering Spurge. (Ec.) (Horn.) Bark 



of the root. 

 Euphorbia cyparissias L. Cypress]^ Spurge. (Horn.) Bark of 



the root. 



Callitrichaceae. 



Callitriche palustris L. {C. verna L.) Vernal Water Starwort. 

 (Ec.) Plant. 



Sapindales. 



Anacardiaceae . a 



Rhus typhina L. Staghorn Sumac. (Ec.) Bark of the root. 

 Rhus glabra L. Smooth Sumac. (U. S. P.) (Ec.) (Horn.) Fresh 



fruit and bark of root. 

 Rhus vernix L. {R. -venenata DC.) Poison Oak. (Ec.) (Hom.) 



Leaves. 

 Rhus radicans L. {R. toxicodendron L.) (U. S. P.) (Ec.) (Hom.) 



Leaves. 

 Rhus aromatica Ait. Fragrant Sumac. (Ec.) Bark of the root. 



I lie ace ae. 



Ilex opaca Ait. American Holly. (Ec.) (Hom.) Leaves. 



Ilex verticillata Gray. Black Alder. (Ec.) Bark and berries. - 



Celastraceae. 



Euonymus atropurpureus Jacq. Wahoo, Burning Bush. (U. S. 



P.) (Ec.) (Hom.) Bark of the root. 

 Celastrus scandens L. Climbing Bitter-sweet. (Ec.) Bark. 



Hippocastanaceae . 



Aesculus hippocastanum L. Horse chestnut. (Ec.) (Hom.) 



Bark and fruit. 

 Aesculus glabra Willd. Ohio or Fetid Buckeye. (Ec.) (Hom.) 



Fruit. 



