APPENDIX G. BOTANY. 279 



SOLANACE^. 



Solanum flavidum, Torr. Ann. Lye. New York, 2, p. 227 ; Dunal in DC. 

 Prodr. 13, p. 375. Cache Creek ; May. This species is not suffrutescent, as 

 is stated in the original description, but probably annual. Mr. Wright found it 

 on the Rio Grande. The prickles are sometimes almost wanting. 



S. Carolinense, Linn. ; Torr., Fl. N. York 2, p. 105; Dunal, 1. •., p. 305. 

 Witchita Mountains and upper tributaries of the Red River ; May- June. 



Physalis pumila, Nutt., in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 193. "With 

 the preceding ; May-June. This species has been overlooked by Dunal in 

 DC. Prodr. 



SCROPHULARIACEiE. 



Castilleja purpurea, G. Don. ; Benth., in DC. Prodr. 10, p. 531. Euchro- 

 ma purpurea, Nutt., 1. c, p. 180. Sources of the Trinity River ; May. 



Penstemon grandiflorus, Nutt., in Fras. Cat. 1813, and Gen. 2, p. 53 ; 

 Benth., 1. c, p. 322. P. Bradburii, Pursh, Fl. 2, p. 738. North Fork of Red 

 River ; fl. June 3. The pedicels vary from three lines to nearly an inch in 

 length. 



P. ambigcus, Torr., in Ann. Lye. N. York, 2, p. 228 ; Benth., 1. c, p. 321. 

 Witchita Mountains; June. This rare and well characterized species has lately 

 been found by Mr. Wright on the upper Rio Grande. 



P. Cobjea, Nutt., 1. c. ; Hook. Bot. Mag., t. 3465 ; Benth., 1. c , p. 326. 

 Upper tributaries of the Red River ; May- June. 



P. pubescens, Soland. ; Torr., Fl. N. York, 2, p. 35 ; Benth., 1. c. Head- 

 waters of the Trinity. Smoothish, with narrower and more entire leaves than 

 usual. 



Gerardia grandiflora, Benth., Comp. Bot. Mag., 1, p. 206. Dasystomu 

 Drummondi, Benth., in DC. Prodr. 10, p. 521. On the Washita ; fl. July 27. 



