52 INDEX TO AMERICAN BOTANICAL LITERATURE 
Christ, V.H. Die Varietiten und Verwandten des Asp/enium Ruta- 
muraria LL.  Hedwigia, 42: 153-160. pl. 5-8. 4 Jl 1903; 161- 
tot. 40 1904, 
Includes a brief discussion of the American forms. 
Claassen, E. Interesting specimens of Sfecularia perfoliata. Ohio 
iat: 3% 418. Ap 1903: 
Clarke, C.S. Mounting mosses. Bryologist, 6: 102,103. N 1903. 
Clute, W. N. Fernwort notes —IV. Fern Bull. 11: ro5—-107. [D] 
1903. 
Clute, W. N. The species-conception among the ternate botrychiums. 
Fern Bull. 11: 115-117. [D] 1903. 
Dandridge, D. More wild violets of Virginia. Garden, 61: 354, 
355. 31 My 1902. : 
Dietel, P. Bemerkungen iiber einige nordamerikanische Uredineen. — 
Hedwigia, 42 (Beibl.): 179-181. f. z, 2. 4 Jl 1903. : 
Includes description of Phragmidium Potentillae-Canadensis sp. nov. 
Dietel, P. Ueber die Teleutosporenform von Uredo Jaeviuscula D. et 
H. und iiber MWelampsora Fagi D. et Neg. Ann. Myc. I: 415- 
417. 5S 1903. 
Dietel, P. Ueber die Uvromyces-Arten auf Lupinen. Hedwigia, 42 
(Beibl.) : 95-99. 28 Mr 1903. 
Druery, C. T. New forms of ferns. Fern Bull. 11: 118-120. [D] 
1903. 
Eaton, A. A. The genus Lguisetum in North America. Fifteenth 
paper. Fern Bull. 11: 1to8—-114. [DJ] 1903. 
Includes descriptions of three new varieties of A. hiemale, 
Evans, A. W. Odontoschisma Macounti and its North American allies. 
Bot. Gaz. 36: 321-348. fl. 78-20. 15 N 1903. 
Faurot, F. A. Notes on the early development of Astragalus carye- 
carpus. Proc. Iowa Acad. Sci. 8: 210-214. p/. Q-77. 1901. 
Fischer, G. [Zr/angen.| Beitrige zur vergleichenden Anatomie des 
Blattes bei den Trifolieen. (Dissert. Univ. Erlangen.) 1-99 — 
Erlangen, 1902. 
Fitzpatrick, T. J. & M. F. L. Betulaceae of Iowa. Proc. Iowa — 
Acad. Sci. 8: 169-177. igor. 
Fitzpatrick, T. J.& M.F.L. The Fagaceae of Iowa. Proc. Iowa 
Acad. Sci. 8: 177-196. got. : 
Fitzpatrick, T.J.& M.F.L. The /ug/andaceae of lowa. Proc. lowa — 
Acad. Sci. 8: 160-169. gor. 
