18 SAPINDACEiE. jEsculus- 



A variety with purple or flesh-colored flowers, the leaflets pubescent 

 beneath, is var. purpurascens, Gray. 



Wood light, soft, close-grained, compact, difficult to split; medullary 

 rays numerous, obscure; color creamy-white, the sap-wood hardly dis- 

 tinguishable. 



52. JEsculus Californica, Nutt. 

 California Buckeye. 



California, — valley of the upper Sacramento River and Mendocino 

 County, southward in the Coast Ranges to San Luis Obispo, and along 

 the western foot-hills of the Sierra Nevada Mountains. 



A low, widely branching tree, S to 12 metres in height, with a short 

 trunk 0.G0 to 0.90 metre in diameter, often greatly expanded at the base. 

 or more often a much-branched shrub from 3 to 5 metres in height ; 

 borders of streams, reaching its greatest development in the canons of the 

 Coast Ranges north of San Francisco Bay. 



Wood light, soft, not strong, very close-grained, compact; medullary 

 rays numerous, obscure ; color white slightly tinged with yellow, the sap- 

 wood hardly distinguishable. 



53. Ungnadia speciosa, Endl. 

 Spanish Buckeye. 



Valley of the Trinity River, Texas, to the canons of the Organ Moun- 

 tains, New Mexico ; and southward into Mexico. 



A small tree, sometimes 6 to 8 metres in height, with a trunk 0.15 to 

 0.20 metre in diameter, or towards its eastern and western limits reduced 

 to a low shrub ; common west of the Colorado River, on bottoms and 

 rich hillsides, and reaching its greatest development in the valley of the 

 Guadalupe River, between New Braunfels and the coast. 



Wood heavy, soft, not strong, close-grained, compact, satiny, contain- 

 ing numerous evenly distributed open ducts; medullary rays numerous, 

 inconspicuous ; color red tinged with brown, the sap-wood lighter. 



54. Sapindus marginatus, Willd. 

 Wihl China. Soapberry. 



Atlantic coast, — Savannah River to the Saint John's River, Florida; 

 Cedar Keys ; valley of the Washita River, Arkansas, through western 

 Louisiana, and Texas to the mountain valleys of southern New Mexico 

 and Arizona, and southward into Mexico; in the West Indies. 



A tree on the Atlantic coast, sometimes 15 to 18 metres in height, 

 with a trunk rarely 0.60 metre in diameter, west of the Colorado River 

 much smaller, rarely 9 metres in height; borders of streams or toward the 

 western limits of its distribution, only in mountain valleys ; reaching its 

 greatest development on the bottom-lands of eastern Texas. 



