PLANTAE LINDHEIMERIANAE. 205 
ScHeete, Apotr. Beitriige zur Kenntniss der Labiaten. 
Linnaea. 22:3 584-596. 1849. 
— Beitrige zur Kenntniss der Euphorbiaceen. 
Linnaea. 25:3 580-588. 1852. 
Situ, J. G. Grazing problems in the Southwest and how to meet them. 
Bull. No. 16. U.S. Div. Agros., Dept. Agr. Washington. 1899. 
47 pp. 
Spacu, E. Description of some new Cistaceae, chiefly found by Mr. 
Drummond, in the southernmost regions of North America. 
Hooker’s Comp. to Bot. Mag. 2: 282-293. 1836. London. 
Suuurvant, W. S. Mosses and Liverworts (of the Whipple Expedition). 
Pac. Ry. Surv. 43 185-193. pl. 7-10. Washington. 1856. 
Torrey, JoHN. (Botany of the Whipple Expedition). 
Pac. Ry. Surv. 4: 61-182. pl. 1-25. Washington. 1856. 
— Botany of the Boundary. 
U.S. & Mex. Bound. Surv. 2: 27-270. pl. 1-61. Washington. 1859. 
—— Plants collected during Capt. Marcy’s exploration of the Red River 
of Louisiana in 1852. Washington. 1854. 
— Report on the botany of the Sitgreaves Expedition in ‘‘ Report of an 
expedition down the Zuni and Colorado Rivers by Captain Sitgreaves.” 
Washington. 1854. pp. 153-178. pl. 1-27. 
(Contains many references to species from Texas). 
— & Asa Gray. Report on the botany of the (Pope) Expedition 
(32d Parallel). 
Pac. Ry. Surv. 2: 157-185. pl. 1-10. Washington. 1855. 
Townsend, C. H. T. On the biogeography of Mexico and the south- 
western United States. pp. 80-85. 
Trans. Tex. Acad. Sci. 2!: 33-86. Austin. 1897. 
On the biogeography of Mexico, Texas, New Mexico and Arizona. 
Trans. Tex. Acad. Sci. 14: 71-96. Austin. 1895. 
Tracy, 8. M. A report on the forage plants and forage resources of the 
Gulf States. 
Bull. No. 15. U.S. Div. Agros. Washington. 1898. 55 pp. 
UnvEerwoop, L.M. Pteridophyta (of western Texas). 
Cont. U. S. Nat. Herb. 2: 557-568. Washington. 1894. 
VasEy, Geo. Report of an investigation of the grasses of the arid districts 
of Texas, New Mexico, Arizona and Utah in 1887. Washington. 1888. 
61 pp. 29 pl. 
—— Grasses of the South. A report on certain grasses and forage plants 
for cultivation in the South and Southwest. Washington. 1887. 
63 pp. 16 pl. 
Warp, L. F. Texas plants. Washington. 1877. 5 pp. 
Watson, SERENO. List of plants from southwestern Texas and northern 
Mexico, collected chiefly by Dr. E. Palmer in 1879-80. 
Proc. Amer. Acad. 17: 316-361. 1882. 18: 96-191. 1883. 

