APPENDIX G. BOTANY. 287 



Aristida fasciculata, Torr., in Ann. Lye. N. York, 2, p. 154 ; Kuntli, 

 Enum. 2, p. 196. A. purpurea, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, 

 p. 145. Middle Fork of Red River ; May-June. 



Agrostis (Sporobolus) airoides, Torr, in Ann. Lye. N. York, 2, p. 151. 

 With the preceding. The axils of the panicle are nearly glabrous in Captain 

 Marcy's specimens. 



Calamagrostis gigantea, Nutt. 1. c, p. 143. Middle Fork of Red River ; 

 June 23. 



Chloris verticillata, Nutt. 1. c. With the preceding ; June 25. An ele- 

 gant grass, near C. alba, Presl. and Torr. in Emory's Rep. p. 153. 



Bouteloua racemosa, Lag. Var. Cienc. (1805) p. 141 ; Torr. in Emory's 

 Rep., p. 154 ; not of Torr. Fl. N. York. Dinebra curtipendula, DC. ? Kunth, 

 Syn. PI. Eq. 1, p. 281 ; excl. syn. Michx. Eutriana curtipendula, Trin. Fund. 

 p. 161 (in part ;) Kunth, Enum. 1, p. 280, and Suppl. p. 233; excl. syn. Michx. 

 and Willd. Main Fork of Red River ; July. The detailed description of this 

 species by Kunth, 1. c., (drawn from a Mexican specimen collected by Hum- 

 boldt) shows that the Chloris curtipendula of Michaux (Bouteloua curtipendula, 

 Torr.) is a distinct species, as indicated in Emory's Report, 1. c. 



Chondrosium oligostachyum. Alheropogon oligostachyum, Nutt. Gen. 1, p. 

 78; Torr. in Sill. Jour. 4, p. 58. Eutriana? oligostachya, Kunth. Gram. 1, p. 

 96, ex. Enum. 2, p. 282. Main Fork of Red River ; July 2. 



C. papillosum. Mheropogon papillosum, Engelm. in Sill. Jour. 46, p. 104. 

 With the preceding, of which it is perhaps only a variety. The species of 

 Chondrosium and Bouteloua are known by the name of Grama Grasses in New 

 Mexico and Texas. 



Pleuraphis Jamesii, Torr. in Ann. Lye. N. York, 1, p. 148, t. 10 ; Kunth. 

 Enum. 1, p. 285. Main Fork of Red River ; July. Kunth (1. c.) asks whether 

 this is not Hymenotheceium quinquesetem of Lagasca ; but the brief description 

 of that author (in Gen. et. Sp. PI. Nov. 1816) does not agree with our 

 plant. 



