278 APPENDIX G. — BOTANY. 



Amsonia salicifolia, Pursh, Fl. 1, p. 184 ; Decaisne, in DC. Prodr. 8, p, 

 385. Witchita Mountains ; fr. July 16. This is perhaps only a variety of A. 

 angustifolia, Micks., and both may not be specifically distinct from A. tabernas- 

 montana. 



GENTIANAGrE. 



Sabbatia campestris, Nutt, in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 167 ; 

 Griseb., in DC. Prodr. 9, p. 50 ; Engelm. and Gr., PI. Lindh. 1, p. 15. On 

 the Washita ; fl. and fr. July 27. 



Erythr^ea Beyrichii, Torr. and Gr., Fl. 2, ined. E. trichantha ft. angusti- 

 folia, Griseb. 1. c. With the preceding ; fl. and fr. July 26. 



Eustoma Russelianum, Don. ; Griseb. in DC. Prodr. 8, p. 51. Lisianthus 

 glaucifolius, Nutt. 1. c. L. Russelianus, Hook. Bot. Mag., t. 3626. Washita 

 River to the upper tributaries of the Red River ; July. 



CONVOLVULACKE. 



Evolvulus pilosus, Nutt. Gen. 1, p. 174, (as a synonym) ; Trans. Amer. 

 Phil. Soc. (n. ser.) 5, p. 195. E. argenteus, Pursh, Fl. 1, p. 187 ; Choisy, in 

 DC. Prodr. 9, p. 443 ; not of R. Br. Middle Fork of Red River ; fl. May 22. 

 Choisy doubtingly refers Brown's plant to E. hirsutus, Lam., and therefore has 

 adopted Pursh 's name. 



Convolvulus lobatus, Engelm., and Gray, PI. Lindh. 1, p. 44 (in a note.) 

 C. hastatus, Nutt.. in Trans. Amer. Phil. Soc (n. ser.) 5, p. 194 ; not of Thunb. 

 C. Nuttallii, Torr. in Emory's Rep., p. 149. Middle Fork of Red River ; May 

 22 — June 6. This species has much the appearance of C. althtzoides, Boss. 



C. (Ipomcea) leptophyllus, Torr., in Frem. First Report, p. 94, and in 

 Emory's Report, p. 148, t. 11. With the preceding. 



C. (Ipomcea) shumardianus, (sp. nov. ;) caule gracili subpubescente ; foliis 

 ovato-lanceolatis sursum angustatis basi acutis ; pedunculis petiolas longioribus 

 sepalis ovatis obtusis. Witchita Mountains ; fl. July 17 ; flowers as large as in 

 C. panduratus, which the plant much resembles, but differs in the form of the 

 leaves, and in the broader and more obtuse sepals. Named in honor of Dr. G. 

 C. Shumard, the botanical collector of the expedition. 



