Sept. 1906 ] Index to North American Mycology 
227 
Cronartium quercuum (Berk.) Peridermium cerebrum Peck, 
and. [Cultures, etc.] C. L. Shear. Jour. Mycol. 12:89-92. 
May 1906. 
Crown-Gall and Hairy-Root Diseases of the Apple Tree. George 
G. Hedgcock. U. S. Dept. Agr. Bureau PI. Industry, Bull. 
90:1-7. PI. I-III. 17 Nov. 1905. 
Cryptosporium nubilosum E. & E., syn. of Pseudostegia nubi- 
losa q. v. 
Cubamyces Murrill n. gen. Polyporaceae, type Polyporus cu- 
bensis Mont. Bull. Torr. Bot. Club, 32:480. Sept. 1905. 
Cubamyces cubensis (Mont.) Murrill n. n. [Polyporus cuben- 
sis Mont.] Bull. Torr. Bot. Club, 32:480. Sept. 1905. 
Culture Medium for the Zygospores of Mucor stolonifer. J. 
I. Hamaker. Science, N. S. 23 :7io. 4 May 1906. 
Cytological Studies on the Entomophthoraceae. I, The Morph¬ 
ology and Development of Empusa. Edgar W. Olive. B'ot. 
Gaz. 41:192-206. PI. XIV-XV. Mar. 1906. 
Cytological Studies of Entomophthoraceae. II, Nuclear and 
Cell Division of Empusa. Edgar W. Olive. Bot. Gaz. 
41 .-229-260. PI. XVI. Apr. 1906. 
Cytology of the Entomophthoraceae. Lincoln Ware Riddle. 
Proc. Am. Acad. Arts & Sci. 42:177-198. PI. 1-3. August 
1906. 
Daedalea pini Fr., syn. of Porodaedalea pini q. v. 
Deleterious Agents upon the Fungi; the Action of insoluble 
substances in Modifying the effect of. Ruby Fitch. Ann. 
Mycolog. 4:313-322. Aug. 1906. 
Dendrophagus colossus (Fr.) Murrill n. n. [Polyporus colos¬ 
sus Fr.] Bull. Torr. Bot. Club, 32:473. Sept. 1905. 
Dendrophagus Murrill n. gen. Polyporaceae, type Polyporus 
colossus Fr. Bull. Torr. Bot. Club, 32 473. Sept. 1905. 
Denniston, H. R. Russulas of Madison and Vicinity. Trans. 
Wise. Acad. Sci. Arts & Let. 15:71-88. 1904 (issued 1905). 
Development of Armillaria mellea and of Agaricus cainpestris 
[abstract]. G. F. Atkinson. Science, N. S. 23:203. 9 Feb. 
1906. 
Development of Ascus and Spore Formation in Ascomycetes. 
J. Horace Faull. Proc. Boston Soc. Nat. Hist. 32:77-113, 
PI. 7-11. June 1905. 
Diaporthe ailanthi megacerasphora Fairman n. var., on dead or 
rotten limbs of Ailanthus glandulosa Desf. Proc. Rochester 
Acad. Sci. 4:220. March 1906. 
Dichomera prunicola Ell. & Dearn. n. sp., on prunus virginiana, 
No. 2021, Fungi Columbiani. 20 March 1905. 
