252 APPENDIX G. BOTANY. 



Petalostemon villosum, Nutt., Gen. 2, p. 85 ; Torr. and Gr., Fl. 1, 

 p. 310. Cache Creek ; June 14 ; flowers not yet expanded. 



Dalea atjeea, Nutt., Gen. 2, p. 101 ; Torr. and Gr., Fl. 1, p. 308 ; 

 Gray, PI. Wright. 2, p. 41. Main Fork of Eed Eiver ; fl. July 5. 



D. lanata, Spreng. Syst. 3, p. 32*7. D. lanuginosa, Nutt., in Torr. 

 and Gr., Fl. 1, p. 307. Big Witchita and on the Main Fork of the Eed 

 Eiver; fl. June 27. 



D. laxiflora, Pursh, Fl. 2, p. 741 ; Nutt., Gen. 2, p. 101 ; Torr. and 

 Gr., Fl. 1, p. 307. D. pencillata, Moricand, PI. Nouv. Amer., t. 45. 

 Common on all the upper waters of the Eed Eiver ; May-July. 



Amorpha canescens, Nutt., Gen. 2, p. 92 ; Torr. and Gr., Fl. 1, p. 

 306. Witchita Mountains; fl. May 30. 



Astragalus Nuttallianus, DC. Prodr. 2, p. 289 ; Torr. and Gr. 2, 

 p. 234. Upper waters of the Eed Eiver ; fl. and fr. May 5. The flowers 

 are larger than usual in this species.' 



A. caryo carpus, Ker. Bot. Eeg.. t. 176; Torr. and Gr., Fl. 1, p. 

 331. Headwaters of the Trinity. May 2 ; in flower only. 



Oxttropis Lambertt, Pursh, Fl. 2, p. 740 ; Torr. and Gr. Fl. 1, p. 

 339. With the preceding ; fl. in May. 



Desmodium sessilifolium, Torr. and Gr. 1, p. 363. Witchita Mount- 

 ains. The specimens of this plant collected by Captain Marcy are in 

 a state of remarkable fasciation. The branches of the panicle are coa- 

 lesced (sometimes almost to the summit) into a broad flat mass, which 

 is covered with sessile flowers and fruit. 



Clitoria Mariana, Linn. ; Torr. and Gr., Fl. 1, p. 290 ; Torr., Fl. 

 N. York, 1, p. 163, t. 24. On the Washita ; fl. July 27. 



Baptisia australis, E. Br.; Torr. and Gr., Fl. 1, p. 385. Sources 

 of the Eed Eiver; fl. and fr. June 6-10. 



B. leucoph^a, Nutt., Gen. 1, p. 282 ; Torr. and Gr. 1. c. Common 

 on the upper tributaries of the Eed Eiver ; fl. April, fr. May. 



Hoffmanseggia Jamesii, Torr. and Gr., Fl. 1, p. 293 ; Gray, PI. 

 Lindh. 2, p. 178. With the preceding ; fl. and fr. June 14-24. 



