APPENDIX G. BOTANY. 269 



GERANIACEiE. 



Geranium Carolinianum, Linn. ; Torr. and Gr., FI. 1, p. 207. Headwaters 

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



ZANTHOXYLACEjE. 



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

 and Gr., Fl. ], Suppl., p. 680. Common on the headwaters of the Red River; 

 fr. June 16. 



ANACARDIACEiE. 



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

 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. 



VITACEiE. 



Vitis rupertris, Scheele, in Linnsea, 21, p. 591 ; Gray, PI. Lindh., 2, p. 

 165. Witchita Mountains ; abundant. The fruit was immature, but had at- 

 tained 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. 



SAPINDACEvE. 



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 dia- 

 meter. The wood is of a yellow color. 



POLY GAL ACEiE. 



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

 richii, Torr. and Gr., Fl. 1, p. 670. On Suydam Creek, North Fork of Rec. 

 River ; fl. June 6. 



