402 BOTANICAL GAZETTE [JUNE 
hand, but cultures from the Botrytis gave at first conidia and 
later sclerotia of the usual botrytis type. 
Among the many other diseases of this class which have 
been described, space only permits that the following be men- 
tioned : 
CONIFERS. 
TuBEuF, K. F. von. Bot. Centralb. 33:347. 1888. Also: Beitrage zur 
Kenntniss der Baumkrankheiten. Pflanzenkrankheiten 283 
BEHRENS, J. Zeitschr. f. Pflanzenkrankh. 5:136. 1895. 
RitzEMA Bos, J. Forstlich-naturwiss. Zeitschr. 6:174. 1897. 
MASSEE, G. Text-book of plant diseases 160. 
GRAPE, 
MULLER-TuurGau, H. Landwirtsch. Jahrb. 17:83. 1888. 
ViaLa, P. Rev. gén. de bot. 3: 145. 1891. (Zeitschr. f. Pflanzenkrankh. 
7:159. 1897.) 
Ravaz, L. Compt. rend. 118: 1280. 1894. (Zeitschr. f. Pflanzenkrankh. 
5:49. 1895.) 
Cuponl, G. Bull. di Notizie Agrarie. 2: 487. 1896. (Zeitsch. f. Pflanzen- 
krankh. 7: 159. 1897.) 
Von BaBo UND MAcH. Weinbau. 
LILY. 
Warp, H.M. Ann. Bot. 2: 319. 1888. Diseases of plants 117. 
KEAN, A. J. Bot. Gaz. 15:8. 1890. 
MASSEF, G. Text-book of plant diseases. 161. 
HORSE CHESTNUT. 
KISSLING, E. Loc. cit. 
PRUNUS TRILOBA. 
TUBEUF, K. F. von, Pflanzenkrankheiten 281. 
GENTIAN. 
KissuinG, E. Loc. cit. 
PRILLIEUX ET DELACROIX. Bull. Soc. Myc. de France 6:135. 1890. 
CYCLAMEN AND PRIMULA. 
WEHMER, CC. Loc. cit. 
In all these cases the general nature of the disease was the 
same, Botrytis appearing more or less on affected parts and often 
forming sclerotia, Many interesting points are brought out in 
some of the descriptions, but they have little bearing on the 
question under consideration. It may be mentioned that the 
