248 APPENDIX G. BOTANY. 



RANUNCULAOEvE. 



Clematis Pitcheri, Torr. and Gr., Fl. 1, p. 10. Witchita Mountains; 

 fl. and fr. July 17. 



Anemone Caroliniana, Walt; Torr. and Gr., Fl. 1, p. 12. Sources 

 of the Trinity River; May 3. 



Delphinium azureum, Michx.; Torr. and Gr., Fl. 1, p. 32. Main Fork 

 of the Eed River; fl. May 8— June 16. 



PAPAVERACEJE. 



Argemone Mexicana, Linn.; Torr. and Gr., Fl. 1, p. 61. Common 

 on the upper waters of the Red River ; May — June 16. 



CRUCIFERJE. 



Vesicaria angustifolia, Nutt., in Torr. and Gr., Fl. 1, p. 101; Gray, 

 PI. Lindh. 2, p. 145. Sources of the Trinity River; fl. and fr. May 3. 



V. stenophylla, Gray, PL Lindh. 2, p. 149; and PI. Wright. l,p. 10, 

 and 2, p. 13. North Fork of the Red River ; fr. June 14. 



Iithyr^ea Wislizeni, Engelm., in Wisliz. N. Mex., p. 95; Gray, PI. 

 Wright. 1, p. 10, and 2, p. 14. Abundant on the headwaters of the 

 Red River; June 23 — July 14. 



The specimens of this plant collected by Captain Marcy vary con- 

 siderably in the leaves, which are often nearly entire. The flowers also 

 vary in size ; the petals being sometimes nearly one-third of an inch in 

 length. The silicles are larger than in specimens collected in New 

 Mexico by Mr. Wright and Dr. Edwards. They are by no means always 

 deeply emarginate at the base, and sometimes they are slightly notched 

 at the summit. 



Streptanthus hyacinthoides, Hook., in Bot. Mag., t. 3516 ; Torr. 

 and Gr., Fl. 1, p. 78; Gray, Gen. 111., t. 61. Witchita Mountains to 

 the boundary of the Choctaw Nation ; fl. May 31 — June 4. 



CAPPARIDACEJE. 



Polanisia graveolens, Raf. ; Torr. and Gr., Fl. 1, p. 123, and Suppl., 

 p. 669. Witchita Mountains ; fl. and fr. July 16. The pods are on a 

 short stipe, and the seeds are more or less rough. 



