250 APPENDIX G. BOTANY. 



GERANIACE^E. 



Geranium Carolinianum, Linn.; Ton;, and Gr., Fl. 1, p. 207. Head- 

 waters of the Trinity, and on Cache Creek ; April — May. 



ZANTHOXYLACEtE. 



Ptelea trifoliata, Linn. ; Torr. and Gr., Fl. 1, p. 215; (Z mollis. 

 Torr. and Gr., Fl. 1, Suppl., p. 680. Common on the headwaters of the 

 Red River; fr. June 16. 



ANACARDIACE^E. 



Rhus trilobata, Nutt., in Torr. and Gr., Fl. 1, p. 218; Gray PI. 

 Fendl., p. 28. On the Middle and North Forks of the Red River; in 

 fruit June 1-16. 



R. Toxicodendron, Linn.; Torr. and Gr., 1. c. With the preceding 

 in fruit only. 



VITACEJE. 



Vitis rupertris, Scheele, in Linnaea, 21, p. 591 ; Gray, PL Lindh., 

 2, p. 165. Witchita Mountains; abundant. The fruit was immature, 

 but had attained nearly its full size in the middle of July. They are 

 said to be ripe in August, when they are about the size of large peas, 

 of a deep purple color, and agreeable to the taste. This species much 

 resembles the summer grape of the Atlantic States. 



SAPINDACEJE. 



Sapindus marginatus, Willd.; Torr. and Gray, Fl. 1, 255; Gray, 

 Gen. 111., 2, t. 180. Main Fork of Red river. 



This is generally known in Texas and Arkansas by the name of Wild 

 China. It is a tree, and attains the height of 20 feet, with a trunk 

 10 inches in diameter. The wood is of a yellow color. 



POLYGALACE^E. 



Polygala alba, Nutt. Gen. 2, p. 87 ; Gray, PI. Wright. 1, p. 38. 

 P. Beyrichii, Torr. and Gr., Fl. 1, p. 670. On Suydam Creek, North 

 Fork of Red River; fl. June 6. 



