Parasitic Bacteria and Fungi Occurring in Texas. 
41 
19. 
Griffiths, David. 
The Prickly Pear as a Farm Crop. 
Bull. Bureau Plant Ind., 124:28. 1908. 
20 . 
Heald & Wolf. 
The Whitening of the Mountain Cedar. 
Mycologia., 2 :205-212. 1910. 
21 . 
Heald- & Wolf. 
Plant Disease Survey of the San Antonio-Austin Area. 
Bull. Bureau Plant Industry. ( In press.) 
22 . ‘ 
Heald & Wolf. 
New Species of Texas Fungi. 
Mycologia, 31 :5-22. 1911. 
23. 
Holway, E. W. D. 
North American Uredinales. 
Part 1. 1-32. 1905. 
Part 3. 57-80. 1907. 
24. 
Jennings, H. S. 
Some Parasitic Fungi of Texas. 
Bull. Tex. Agr. Exp. Sta., 9. 1890. 
25. 
Kern, F. C. 
Studies in the Genus Gymnosporangium. 
Bull. Torr. Bot. Club, 35:508-509. 1908. 
26. 
Long, W. H. 
Some New Species of Puccinia. 
Bull. Torr. Bot. Club, 29 :110-116. 1902. 
27. 
Long, W. H. 
The Ravenelias of the United States and Mexico. 
Bot. Gaz. 35:111-133. 1903. 
29. 
Murrill, W. A. 
Agaricales. 
North Amer. Flora, 9 :1-131. 1907-8. 
