Dec. 1902 ] Index to North American Mycology 
205 
Acontium Morgan gen. nov. Jour. Mycol. 8:4. May 1902. 
Acontium album Morgan n. sp., on the inner side of old bark of 
Acer. Jour. Mycol. 8:4. May 1902. 
Acontium minus Morgan n. sp., on old pod of Gleditsia. Jour. 
Mycol. 8:5. May 1902. 
Acontium velatum Morgan n. sp., on the cut surface of a black 
walnut stump. Jour. Mycol. 8:5. May 1902. 
Acrasieae, Monograph of the. Edgar W. Olive. Proc. Boston 
Soc. Nat. Hist. 30:451-513. pi. 5-8. Aug. 1902. 
Adenostegia pilosa (A. Gray) Greene (Cordylanthus pilosus 
Gray), host to Puccinia adenostegiae Arthur n. sp. Bull. 
Torr. Bot. Club, 29:231. April 1902. 
Aecidial stage (of Puccinia phragmitis) on Rumex britannica, 
R. altissima, R. crispus, and on rhubarb in gardens (John 
M. Bates). Science, N. S. 16:138. 25 July 1902. 
Aecidium albiperidium Arthur n. sp., on Ribes cynosbati L. 
Jour. Mycol. 8:53. June 1902. 
Aecidium atriplicis Shear n. sp., on leaves of Atriplex nuttallii. 
Bull. Torr. Bot. Club, 29:453. July 1902. 
Aecidium dakotensis Griffiths n. sp., on Aquilegia canadensis L. 
Bull. Torr. Bot. Club, 29:300. May 1902. 
Aecidium fraxini Schw., syn of Puccinia fraxinata, q. v. 
Aecidium grindeliae Griffiths n. sp., on Grindelia squarrosa Dunal. 
Bull. Torr. Bot. Club, 29:299. May 1902. 
Aecidium helianthellae Arthur n. sp., on leaves of some species 
of Helianthella. Bull. N. Y. Bot. Garden, 2:(348). 25 
April 1902. 
Aecidium jacquemontiae E. & E. n. sp., on leaves of Jacquemon- 
tia pentantha. Jour. Mycol. 8:11. May 1902. 
Aecidium rubellum Pers., syn. of Puccinia rubella, q. v. 
Aecidium rumicis Hoff., syn. of Puccinia rubella, q. v. 
Aecidium zephyranthis Shear n. sp., on leaves of Zephyranthes. 
sp. Bull Torr. Bot. Club, 29:454. July 1902. 
Agaricus campestris, a preliminary study of the Germination of 
the Spores of, and other Basidiomycetous Fungi. Margaret 
C. Ferguson. U. S. Dept. Agr. Bureau of Plant Industry, 
Bull. No. 16:143. 3 pi. 14 June 1902. 
