The Botany of Texas 17 



18. — (1905), 



The vegetation of the sotol country in Texas. 

 U. of T, Bull. 60. (Sc. ser. 6). 24 pp. pL 1-11. 

 Discusses characters of vegetation of this region; the 

 ecolouical factors; and describes many of the character- 



istie types. 



19. (1906). 



Distribution and adaptation of the vegetation of Texas. 

 U. of T. Bull. 82. (Sc. ser. 10). 108 pp. pi. 1-14. 

 A consideration of the plant environment autl its factors, 

 and of the plant societies of the Texas region. 



20. (1910). 



The Mistletoe pest in the Southwest. 



Bull. 166. B. P. L, IT. S. D. A. 39 pp. 2 pis. 



A report of investigations of the various phases of the 



mistletoe and suggestions as to methods of combating the 



pest. 



21. Britton, X. L. (1884). 



A list of the Cyperaceae collected by the late ^Ir. S. B. 

 Buckley from 1878 to 1883, in the valley of the lower Kio 

 Grande in Texas and nothern Mexico. (46 species). 



Torr. Bnll. 11 :85-87. 



22. ■ (1S90). 



Contributions to Texas Botany. 



Trans. N. Y. Acad. Sc. 9 :181-183. 



Additions to the list of plants collected by iliss :\Iary B. 

 Croft at San Diego, Texas. 



23. (1890). 



Notes on some plants collected by Mr. Prank Tweedy m 

 Tom Greene Co., Texas, in 1879. 

 Trans. N. Y. Acad. Sc. 9 :183-185. 



24 & II. H. Rusby. (1887). 



A list of plants collected by Miss Mary B. Croft at San 



Diego, Texas. 



Trans. N. Y. Acad. Sc. 1 -.7-14. 



25. Boot. F. (1845). 



Descriptions of six new North American Carices. 



Boston Jour, Nat. Hist. 5 :112-116. 



New species of Drummond's Texas Collection. 



26. Buckley, S. B. (1860). _ 



Descriptions of several new species of plants. 



Proc. Fhda. Acad. pp. 443-445. 



Nine spei-ies from Texas and I;ouisiana. 



27. (1861). 



Descriptions of new plants from Texas. 



Proc. PMla. Acad. pp. 448-463. 



Describes 78 species collected in 1860-1861. 



