224 AGRICULTURAL EXPERIMENT STATION. [Jan. 



scribed by Sorauer * appears to be due to this species. Its 

 conidial form has been the subject of important studies l)y 

 Klein,f Miiller-Tliurgaul and Kissling.§ 



8clerotinia Trifoliorum Eriks. has been shown by Kuhn,|| 

 RehmTf and Ericksson** to cause a serious disease of vari- 

 ous species of clover. No conidial form has yet been con- 

 nected with it. From Wakker'sff account it would seem 

 that a very destructive disease of various bul])s (hyacinth, 

 narcissus, crocus, scilla, etc.) in the great propagating fields 

 of Holland is due to the same funixus. On either of its host- 

 plants it penetrates and destroys the tissues rapidly, leaving 

 finally only their shrivelled remains. 



A disease of the European whortleberry was described by 

 Schroeter W in 1879, and by him attributed to one of these 

 fungi, which he called Peziza baccarum. The subject was 

 taken up late;- by Woronin, who has distinguished §§ four 

 closely related species that attack the fruits and leaves of 

 European Vaccinia. The one which he has studied in most 

 detail is Sclerotinia Vaccinii Woron. This species has a 

 summer spore form, not of the Boirytis type, lint very simi- 

 lar to our common fruit-rot fungus, Monilia fmctigena.\\^ 

 There is no reason why these or similar species may not 

 be found attacking our American blueberries or cranl)erries, 

 and producing the " white blueberries," so often regarded, 

 and sometimes justly, as freaks or sp^n-ts. 



Finally, there may be mentioned, as of interest in this 

 connection, the disease of garden lilies studied by Marshall 

 Ward, HIT and shown to be due to a Botrytisi apparently dis- 

 tinct from those al)ove mentioned, and very prol)ably the 

 conidial stage of an unidentified Sclerotinia. 



* Ilandbuch der Planzenkrankheiten, II., p. 294: 1886. 

 t Botanisclie Zeitung, 188."). 



+ Landwirthschaftliche Jahrbticher, XVII., i). 8:5 : 1888. 

 § lledvvigia, XXVIII., p. 227: 1889. 

 II Iledwigia, IX., p. 50 : 1870. 



H I'^ntwickeluiig eines Kleearten zcrstor. Pilzcs ; Guttingen, 1872. 

 *-* Kgl. Landsbr. Akad. Ilandliiigar: 1880. See But. Ceutralbl., I., 296. 

 tt" Allgem. Vcreen. voor Bloembollencultur to Haarlem, 1883-4; and Arohiv Neer- 

 landaiscs, XXIII. 

 ++ lledvvigia, XVIII., p. 177: 1879. 



^^ M6iri. Acad. Sci. St. Petersburg, S6r, 7, t. XXXVI. : 1888 ; and Bericht. Deutschen 

 Bot. Gesellschaft, III., p. LIX. : 1885. 



nil Eiglith lleport Massachusetts Experiment Station, p. 213; and PI. II. 

 nil Annals of Botany, II., p. 319 : 1888. 



