308 INDEX TO AMERICAN BOTANICAL LITERATURE 
Weston, W. H. The development of Thraustotheca, a peculiar water- 
mould. Ann. Bot. 32: 155-173. pl. 4,5 +f. 1, 2. Ja 1918. 
Whitaker, E.S. Anatomy of certain goldenrods. Bot. Gaz. 65: 250- 
260. pl. 7,8 +f. 1. 15 Mr 1918. 
White, O. E. Environment, variation and the laws of heredity. 
Brooklyn Bot. Gard. Leaflets 6: [1-16] f. I). 17. Ap 1988: 
Wilson, G. W. Rusts of Hamilton and Marion Counties, Indiana. 
Proc. Indiana Acad. Sci. 1916: 382, 383. IQI7. 
Wilson, G. W. Studies in North American Peronosporales—VII. 
New and noteworthy species. Mycologia 10: 168, 169. My 1918. 
Rhysotheca Acalyphae sp. nov. is described 
Wilson, O. T. Notes upon a market disease of limes. Phytopath- 
ology 8: 45-50. f. 1-5. 14 F 1918. 
Wolf, F. A. Tobacco wildfire. Jour. Agr. Research 12: 449-457. 
J. 4, 2. -¥B:F :igi8 
Wolf, F. A. SPE with a note on mechanical injury as a 
cause of their development. Jour. Agr. Research 13: 253-260. 
pl. 18, 19 +f. 1. 22 Ap 1918. 
Woodward, R. W. Some Connecticut plants. Rhodora 20: 97, 98 
My 1018. 
Yates, H. S. Some recently collected Philippine fungi. Philip. Jour. 
Sci. 12: (Bot.) 361-380. N 1917. 
ncludes 38 new species in Meliola (17), Asterina (6), Asterinella (1), Morenoella 
(1), Nectria (1), Trabutia (1), Melanopsamma (1), Mycosphaerella (1), Stigmatea (1), 
Merrilliopeltis (1), Pleospora (1), Hypoxylon (1), Nummularia (1), Xylaria (1), 
Pirostoma (1), Phyllosticta (1), and Melanconium (t). 
Zeller, S. M. Correlation of the strength and durability of southern 
pine. Ann. Missouri Bot. Gard. gs: 109-118. pl. 7, 8+f.7 
Ap 1918. 
Zeller, S. M., & Dodge, C. W. Rhizopogon in North America. Ann. 
Missouri Bot. Gard. §: 1-36. pl. 3... F188. 
Nine new species are described. 
Zeller, S. M., & Dodge, C. W. Gautieria in North America. Ann. 
Missouri Bot. Gard. 5: po ah hae 9. Ap 1918. 
Gautieria plumbea sp. nov. is describe: 
Zimmerman, H. E. The siascak fe: Am. Forestry 24: 231: Ap 
1918. 
