BIBLIOGRAPHY 



5' 



Stansbury, H. 



1852 Exploration and survey of the valley of the Great Salt Lake of Utah, 

 including a reconnoissance of a new route through the Rocky moun- 

 tains. Philadelphia. 

 Stapf, 0. 



1888 DerLandschaftscharakter der persischen Steppen und Wiisten. Oesterr.- 

 Ungarische Revue. 

 Tourney, J. W. 



1895 Vegetal dissemination in the genus Opuntia. Bot. Gaz. 20 : 356. 

 1895 Ec/iinocactus -wislizeni and some related species. Garden and Forest, 

 8: 154. 



1895 Opuntia fulgida. Garden and Forest, 8 : 324. 



1896 Opuntia arborescens in the Southwest. Garden and Forest, 9 : 2. 



1897 The giant cactus. Pop. Sci. Monthly, 51 : 641. 



1898 The tree opuntias of the United States. Bot. Gaz. 25 : 119. 

 Townsend, C. H. T. 



1895 On the biogeography of Mexico, New Mexico and Arizona. Trans. 

 Texas Acad. Sci. i : 71. 



1897 On the biogeography of Mexico and the southwestern United States. 

 Trans. Texas Acad. Sci. 2^ : 33. 



Tschirch, A. 



1881 Ueber einige Beziehungen des anatomischen Baues der Assimilations- 



organe zu Klima und Standort, etc. Linnsea, 43 : 139. 

 1895 Beitrage zu der Anatomic und dem EinroUungsmechanismus einiger 

 Grasblatter. Jahrb. Wiss. Bot. 13 : 544. 

 United States Department of Interior. 



1859 Report of the United States and Mexican boundary survey. Vol. 2, Pt. i. 

 United States Department of War. 



1854, 62-74 Exploring expedition, 1838-^2, under command of Chas. Wilkes. 



Vols. i6, 17. Philadelphia. 

 1855-7 Reports of Explorations and Surveys, from the Mississippi river to the 



Pacific ocean, made in 1S53-54, 54-55. Washington. 

 i860 Report upon the Colorado river of the west, explored in 1857-8 by J. C. 



Ives. Washington. 

 1871 United States geological explorations of the 40th parallel, Clarence King 



in charge. Vol. 5. Washington. 

 1878 Report upon United States geological surveys west of the looth merid- 

 ian, in charge of G. M. Wheeler. Vol. 6, Washington. 

 Volkens, G. 



1887 Die Flora der agyptisch-arabischen Wiiste auf Grundlage anatomisch- 



physiologischer Forschungen. Berlin. 

 1890 Ueber Pflanzen mit lackirten Blattern. Ber. Dents. Bot. Gesell. 8 : 120. 



1898 Der Kilimandscharo. 

 Warming, E. 



1892 Lagoa Santa et Bidrag til den biologiski Plantengeografi. Mem. de 

 I'Acad. Roy. d. Sc. et d. Lettres d. Danemark. 6: No. 3. 



1893 Note sur la biologic et I'anatomie de la feuille des Vellosiacees. Bull. 

 Acad. Sci. Copenhague, 57 : — . 



