272 APPENDIX G. BOTANY. 



Cassia Cham.ecrista, Linn. , Torr. and Gr., Fl. 1, p. 395. Tributaries of 

 the Washita ; fl. July 22. 



Schrankia uncinata, Willd. ; Torr. and Gr., Fl. 1, p. 400. Mouth of 

 Medicine River, &c. : fl. April. 



Acacia lutea, Leavenw. ; Torr. and Gr., Fl. 1, p. 403. On the Witchita 

 Mountains ; fl. and fr. July 14. The leaves are remarkably sensitive. 



ROSACEiE. 



Sangdisorba annua, Nutt., in Torr. and Gr., Fl. 1, p. 429. Poterium an- 

 nuum, Hook. Fl. Bor. — Am. 1, p. 198. 



ONAGRACEiE. 



CEnothera rhombipetala, Nutt., in Torr. and Gr., Fl. 1, p. 493; Kunze, 

 in Linnasa, 20, p. 55. Main Fork of Red River ; fl. June 24. 



CE. sinuata, Linn. ; Torr. and Gr., Fl. 1, p. 294. Witchita Mountains and 

 upper tributaries of Red River ; May-June. 



CE. speciosa, Nutt., in Jour. Acad. Phil. 2, p. 119 : Torr. and Gr., Fl. 1. c. 

 Big Witchita ; fl. May 8. Middle Fork of the Red River ; fr. June 21. 



CE. lavanduljefolia, Torr. and Gr., Fl. 1, p. 501 ; Hook. Lond. Jour. Bot. 

 6, p. 223 ; Gray, PI. Wright. 1, p. 72. Big Witchita and North Fork of Red 

 River ; fl. May 8, fr. June 6. The leaves in all our specimens of this rare spe- 

 cies are nearly glabrous, about one inch and a half long, and 2-3 Imes wide, 

 with the apex rather acute. The fruit is well described by Hooker, (1. c.) 



CE. serulata, Nutt., Gen. 1, p. 246; Torr. and Gr., Fl. 1, p. 501. Com- 

 mon on the upper tributaries of the Red River ; May- June. 



Gadra coccinea, Nutt. Gen. 1, p. 249 ; Torr. and Gr., Fl. 1, p. 518. North 

 Fork of Red River ; fl. June 6. 



G. villosa, Torr. Ann. Lye. N. York, 2, p. 200; Torr. and Gr., Fl. 1, p. 

 518 ; Gray, PI. Wright. 1, p. 73. Witchita Mountains ; fr. July 14. The 

 ripe fruit is not always reflexed. It is (including the stripe) about 7 lines long, 

 ovate, strongly tetraquetrous, abruptly contracted at the base, and 2-4-6eeded ; 

 the seeds more or less imbricated. 



