Proceedins,s of the Ohio State Academy of Science 171 



*. Tilia europaca L. European Linden. A large tree much 

 cultivated in parks. Its name, Lin, was the origin of the family 

 name of Linnaeus. 



Subclass, Heteromerae. 

 Order, Ericales. 



Ericaceae. Heath Family. 

 62. Rhododendron L. Rhododendron. 



Shrubs or low trees with alternate persistent, coriaceous 

 leaves ; usually with a woody capsule and numerous seeds. 



T. Rhododendron maximum L. Great Rhododendron. 

 A tall shrub or small tree with beautiful flowers and striking ever- 

 green leaves. Leaves poisonous to stock and the nectar said to 

 produce poisonous honey. On rocky hillsides and along streams. 

 Occasionally cultivated. N. S. to Ont., Ohio, and Ga. 



63. Kalmia L. K.almia. 



Erect shrubs or small trees with evergreen coriaceous leaves. 

 Fruit a capsule. 



I. Kalmia latifolia L. Mountain Kalmia. A shrub or 

 small tree with evergreen leaves. All parts of the plant poisonous 

 to cattle, sheep, and other animals. The honey from the flowers 

 is said to be poisonous ; also the flesh of game that has fed upon 

 the leaves or fruit. In woods and on rocky hillsides. Occasion- 

 ally planted. X. 15. to Out., Ohio, Fla., and La. 



64. Oxydendrum DC. Sorrel-tree. 



A tree with alternate sour leaves and numerous white flowers 

 in terminal panicled racemes. Fruit a capsule. 



I. Oxydendrum arboreum (L.) DC. Sorrel-tree. A small 

 tree Avith smooth bark and brilliantly red-colored leaves in au- 

 tumn. \A'ood hard and close-grained; used for handles of tools, 

 bearings of machinery, etc. On hillsides. Ohio and Penn to 

 Va., Fla., and Aliss. 



