APPENDIX G. BOTANY. 257 



Hymenopappus corymbostjs, Torr. and Gr., Fl. 2, p. 372. IT. En- 

 gelmannianus, Kunth. 



Actinella linearifolia, Torr. and Gr., Fl. 2, p. 383. Hymenoxys 

 linearifolia, Hook. Witchita mountains ; May 30. 



Marshallia caespitosa, Nutt. in DC. Prodr. 5, p. 680; Hook. 

 Bot. Mag. t. 3,704; Torr. and Gr., Fl. 2, p. 391. Headwaters of the 

 Trinity river ; May. 



Aphanostephus ramosissimus, DC. Prodr. 5, p. 310 ; Gray, PI. 

 Wright. 1, p. 93. A. Eiddellii, Torr. and Gr., Fl. 2, p. 189. Egletes 

 ramosissima, Gray, PI. Fendl., p. 71. Little Witchita and upper tribu- 

 taries of Red River; May — June. The tube of the disk flowers is indu- 

 rated in all the specimens. 



. Engelmannia piNNATiFroA, Torr. and Gr., in Nutt. Trans. Am. Phil. 

 Soc. (n. ser.) 7, p. 343; and Fl. 2, p. 283. Witchita Mountains ; May 

 30. 



Melampodium cinereum, DC. Prodr. 5, p. 518; Gray, PI. Fendl., p. 

 78; M. ramosissimum, DC. 1. c, Torr. and Gr., Fl. 2, p. 271. M. 

 lencanthum, Torr. and Gr. 1. c. Cache Creek; June 21. A variable 



species. 



Chrysopsis canescens, Torr. and Gr., Fl. 2, p. 256; Gray, PI. Fendl., 

 p. 77. Main Fork of Red River; July 8. 



C. hispida, Hook. Fl. Bor. — Am. 2, p. 22, (under Diplopappus ;) DC. 

 Prodr. 7, p. 279 ; Torr. and Gr. 1. c. 



Centaurea Americana, Nutt. in Jour. Acad. Phil. 2, p. 117 ; Bart. 

 Fl. Amer. — Sept., t. 50 ; Torr. and Gray, Fl. 2, p. 453. Tributaries of 

 the upper Red River ; June — July. 



Cirsium undulatum, Spreng. ; Torr. and Gr., Fl. 2, p. 456. With 

 the preceding. 



Pyrrhopappus Carolinianus, DC. Prodr. 7, p. 144; Nutt. in 

 Trans. Amer. Phil. Soc. (n. ser.) 7, p. 430. Headwaters of the Trinity 

 and on Cache Creek ; May. 



Ltgodesmia juncea, Don.; Hook. Fl. Bor. — Am. 2, p. 295, t. 103 ; 

 Torr. and Gr., Fl. 2, p. 484. Upper tributaries of the Red River; June. 

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