22i AGRICULTURAL EXPERIMENT STATION. [Jan. 



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

 conidial form has been the sul>ject of important studies bj- 

 Klein, t Miiller-Thurgau J and Kissling.§ 



Sclerotinia 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 bulbs (hyacinth, 

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

 of Holland is due to the same fungus. 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 descril)ed by 

 Schroeter XX i^^ 1870, and by him attributed to one of these 

 fungi, Avhich he called Peziza baccarimi. The subject w^as 

 taken up later hj "Woronin, who has distinguished §§ four 

 closely related s})ecies that attack the fruits and leaves of 

 European Vaccinia. The one which he has studied in most 

 detail is Sclerotinia Yaccinii Woron. This species has a 

 summer spore form, not of the Bolrytis type, 1)ut very simi- 

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

 There is no reason why these or similar S})ecies may not 

 be found attacking our American blueberries or cranberries, 

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

 and sometimes justly, as freaks or sports. 



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

 connection, the disease of garden lilies studied by JNIarshall 

 Ward,!!!! and shown to l)e due to a Botrytis apparently dis- 

 tinct from those above mentioned, and very probably the 

 conidial stage of an unidentified Sclerotinia. 



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



t Botanische Zeitung, 1885. 



+ Lanawirthschaftliche Jahrbiicher, XVII., ]>. 83 : 1888. 



§ Hedwigia, XXVIII., i). 227 : 1889. 



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



H Entwickelung eines Kleearten zerstor. Pilzes ; Gottingen, 1872. 

 ** Kgl. Landsbr. Akad. Handlingar: 1880. See Bot. Centrall)!., I., 296. 

 tt" Allgem. Vereen. voor BloemboUencultur te Haarlem, 1883-4; and Archiv Neer- 

 landaises, XXIII. 

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



^^ MC'iu. Acad. 8ci. St. Petersburg, S6r. 7, t. XXXVI. : 1888 ; and Bericht. Deutschen 

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



III! Eighth Report Massachusetts Experiment Station, p. 213; and PL II. 

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



