22 ECONOAIIC BOTANY OF ALABAMA 



Sudworth, Geo. B. 



1. Check list of the forest trees of the United States, their names and 

 ranges.— U. vS. Dept. Agric, Div. Forestry, Bull. 17. 144 pp. 1898. 



2. (Second edition, with same title.) — U. S. Dept. Agric, Misc. Circ. 

 92. 295 pp. (May?), 1927. 



Surface, H. E. & Cooper, R. E. 



Suitabilitv of lons^-leaf pine for ])a])er pulp. — U. S. Dept. Agric, Bull. 

 11. 26 pp. 1914. 



True, Rodney H. 



Notes on the early history of the pecan in America. — Smithsoniau Re- 

 port 1917:435-448. 1919. 



Von Schrenk, Hermann. 



Sap-rot and other diseases of the red gum [Liqiiidainbar]. — U. S. Bur. 

 Plant Industry, Bull. 114. 37 pp., 8 plates. 1907. 



Wells, S. D.. & Rue, J. D. 



The suitability of American woods for paper pulp. — U. S. Dept. Agric. 

 Bull. 1485. 101 pp. May, 1927. 



Wheeler, Alvin S. 



Juglone.— Jour. Elisha Mitchell Sci. Soc, 35:49-54, pi. 18. (Nov.?') 

 1919. 



(A chemical study of dyestuffs obtained from walnut hulls — species not 

 specified, but presumably Jiiglans nigra.) 



White, L. L. 



Production of red cedar for pencil wood. — U. S. Forest Service, Circu- 

 lar 102. 19 pp. 1907. 



Wight, W. F. 



1. The varieties of plums derived from native American species. — ■ 

 U. S. Dept. Agric, Bull. 172. 44 pp. 1915. 



2. Native American species of Prunus. — U. S. Dept. Agric, Bull. 179. 

 75 pp., 4 figs., 13 plates. 1915. 



Williamson, A. W. 



Cottonwood [Poptilus dcltoidcs] in the Mississippi Vallev.— U. S. Dept. 

 .\gric., Bull. 24. 62 pp., 6 plates. 1913. 



Wilson, E. H., & Rehder, Alfred. 



A monograph of Azaleas. Rhododendron subgenus Anthodendron. — 

 Arnold Arboretum, Publ. no. 9. vii— 219 pp. April, 1921. (The North 

 American species treated by Rehder, pp. 107-170. Includes several from 

 Alabama.) 



Wolf, W. 



Quercus Bcrnardiensis sp. nov. — Torreya 18:161-162. 1918. 

 (From Cullman County, Ala. The author later decided that it was 

 only a hybrid between 0. inontana and Q. stellata.) 



