INDEX TO AMERICAN BOTANICAL LITERATURE 11] 
Thompson, J. R. Boniato—atree ora yam? Plant World, 6: 287, 
288. D 1903. 
Transeau, E. N. On the geographic distribution and ecological rela- 
tions of the bog-plant societies of northern North America. Bot. 
Gaz. 36: 401-420. f. 7-37. 19 D 1903. 
True, R.H. East Tennessee pink root. Pharm. Rev. 21: 364. S. 
1903. 
Underwood, L.M. A summary of our present knowledge of the ferns 
of the Philippines. Bull. Torrey Club, 30: 665-684. 5 D 1903. 
3 Warnstorf, C. Vier neue exotische Sphagna. Magyar Bot. Lap. 1: 
43-46. 11 Mr 1902. 
Includes S. Geheebié sp. nov. from Brazil. 
Warsow, G. Systematisch-anatomische Untersuchungen des Blattes 
bei der Gattung 4cer mit besonderer Beriicksichtigung der Milchsafti- 
lemente. Beih. Bot. Centralb. 15: 493-601. fi 1-4. 1903. 
Waters, C. E. Asplenium ebeneum proliferum. Rhodora, 5: 272, 
273. 19 N 1903. [Illust.] 
Watson, W. Cereus Greggii. Gard. Chron. III. 34: 93.7 43. § 
Au 1903. 
Whetzel, H. H. A new method of mounting superficial fungi. Jour. 
Myc. g: 218, 219. 31 D 1903. 
Whitford, H.N. The forest and the prairie. Bull. Univ. Montana, 
Biol. Ser. 1: 249-254. 1903. 
Whitford, H. N. The forest trees. [Conifers of Montana.] Bull. 
Univ. Montana, Biol. Ser. 1: 215-229. f. 7-76. 1903. 
Whitford, H.N. The plant associations. Bull. Univ. Montana, Biol. 
mer. X: 271-274. ph s2 +f GTi 1903 
: - Wildeman, E. de. Cupressus Arizonica Greene. Ic. Sel. Hort. The- 
=" Nensis, 4: 111-114. pl. 145. Jl 1903- 
ES i Native of Arizona and northern Mexico. 
_= Wille, N. Algologische Notizen—X. Ueber die Algengattung 
2 Sphaerella Somm. Nyt. Mag. Vid. 41: 94-109. 1 My 1903. 
Wille, N. Algologische Notizen— XI. Ueber die Gattung Chlamy- 
domonas. Nyt. Mag. Vid. 41: 109-162. p/. 3, 4. 1 My 1903. 
With synopses of all known species of Chlamydomonas and Chloromonas. 
Williams, R. S. Bolivian Mosses. Part I. Bull. N. Y. Bot. Gard. 
ss 104-134. 19 O 1903. 
ncludes twenty-nine new species in twenty genera, of which three are new : 
oe Teretidens and Aligrimmia. 
Chry- 
