Proceedings of the Ohio State Academy of Science 169 



1. Aesculus hippocastanum L. Horse-chestnut. A large 

 tree with very resinous, gummy winter buds. Autumn leaves 

 orange. The seeds are poisonous and symptoms of poisoning 

 have been produced from eating the green rind. The twigs con- 

 tain Aesculin which is fluorescent in aqueous solution. Escaped 

 from cultivation ; native of Asia. 



2. Aesculus glabra Willd. Ohio Buckeye. A large tree 

 with rough and fetid bark. Leaves, young shoots, and seeds poi- 

 sonous to cattle. Wood light and hard to split ; used for making 

 artificial limbs, wooden-ware, and paper pulp. Penn. to Ala., 

 Mich., Neb., Okl., and Ohio. 



3. Aesculus arguta Buckl. Western Buckeye. A shrub- 

 like small tree with smooth bark. On flood plains. Kan. to Tex. 



4. Aesculus octandra Marsh. Yellow Buckeye. A large 

 tree with brown scaly bark. Seeds poisonous. Wood light 

 and hard to split; used for making artificial limbs, wooden- 

 ware, and paper pulp. Aesculus octandra hybrida (DC.) 

 Sarg. has purplish or pink flowers, leaflets pubescent beneath, 

 and light brown bark. Penn. to Ga., Iowa and Tex., Ohio. 



Sapindaceae. Soapberry Family. 



59. Sapindus L. Soapberry. 



Trees or shrubs with alternate, odd-pinnate leaves. Fruit a 

 berry. 



I. Sapindus drummondi H. & A. Drummond Soap- 

 berry. A tree with white flowers in dense terminal panicles and 

 very saponaceous, globose berries. Kan. and La. to Ariz. 



Order, Rhamnales. 



Rhamnaceae. Buckthorn Family. 



60. Rhamnus L. Buckthorn. 



Shrubs or small trees, sometimes with thorns, with berry- 

 like drupes, containing 2-4 nutlet-like stones. 



1. Leaves with 3 or 4 pairs of lateral veins, the basal pair prominent; 

 nutlets of the fruit grooved ; flovi^ers dioecious or imperfectly mono- 

 sporangiate. R. cathartica. 



