Nov. 1906] Index to North American Mycology 
269 
Salix, dead limbs, host to Schizoxylon dermateoides Rehm n. 
sp. Ann. Mycolog. 4:337. Aug. iqo6. 
Salix, decorticated branches, host to Lophiostoma pruni E. & 
E. Proc. Rochester Acad. Sci. 4:215. March 1906. 
Sarcoscypha dawsonensis Peck, n. sp., among mosses Lepto- 
bryum pyriforme Schimp. Bull. Torr. Bot. Club, 331220. 
April 1906. 
Sargent, Frederick LeRoy. Lichenology for Beginners. Bry- 
ologist, 8:45-8. May 1905. 
Sargent, Frederick LeRoy, Lichenology for Beginners, II. 
Bryologist, 8:66-9. July 1905. 
Sargent, Frederick LeRoy. Lichenology for Beginners, IV. 
Bryologist, 8:98-106. Nov. 1905. 
Sassafras officinalis, host to Leptothyrium kellermanni Bubfik 
n. sp. Jour. Mycol. 12:55. Mar. 1906. 
Schizoxylon dermateoides Rehm n. sp., on dead limbs of Salix 
in woods. Ann. Mycolog. 4:336. Aug. 1906. 
Schneider, Albert. Classification of Lichens [referring partic¬ 
ularly to treatment in Pflanzenfamilien by Fiinfstuck and 
Zahlbruckner]. Torreya, 5:79~82. May 1905. 
Schrenk, Flerman von. On the Occurrence of Peronospora par¬ 
asitica on Cauliflower. A11. Rep. Mo. Bot. Gar. 16:121-4. 
PI. 22-4. 1905. 
Sclerotinia johnsonii (E. & E.) Rehm n. n. (Ciboria john- 
sonii). Ann. Mycolog. 4:338. Aug. 1906. 
Sclerotinia nyssaegena (Ellis) Rehm n. n. (Peziza nyssaegena 
Ellis N. A. F.; Ciboria nyssaegena Sacc. Syll.) Ann. 
Mycolog. 4:338. Aug. 1906. 
Sclerotinia on Cauliflower and Cabbage, see Disease of Cauli¬ 
flower. 
Second Supplement to New Genera of Fungi published since the 
year 1900, with citation and the original descriptions. Com¬ 
piled by P. L. Ricker. Jour. Mycol. 12:60-67, 95-102, March 
and May 1906. 
Septoria potentillarum Fuckel, syn. of Marssonina potentillae 
q. v. 
Septoria potentillarum Fckl., syn. of Marssonina potentillarum 
q. v. 
Sexual Reproduction and the Organization of the Nucleus in 
Certain Mildews. R. A. Harper. Carnegie Institution of 
Washington Publication No. 37:1-104. PI. I-VII. Sep¬ 
tember 1905. 
