284 



FUNG US- FLORA. 



Sclerotinia bulborum. Eehm, Krypt.-Flora, Disc., 

 p. 819; Sacc., Syll., viii. n. 802 ; Mass., in Gard. Chron., 

 Aug. llth, 1894, p. 1894, with fig. 



Ascophores 1-3 in number, springing from an irregular 

 sclerotium which is at first white, then blackish externally, 



Fig. 1, Sclerotinia bulborum, Rehm, X 10 ; Fig. 2, ascua and paraphysis 

 of same, X 400 ; Fig. 3, section of portion of a sclerotium, X 400 ; 

 Fig. 4, Botrytis form of the fungus, x 250 ; Fig. 5, conidia of Botrytis 

 stage, x 400. 



8-12 mm. diameter ; ascophore stipitate, at first closed, then 

 hemispherical, or sometimes more expanded, brown, glabrous, 

 3-5 ft; stem slender, almost cylindrical, smooth, brown, 

 10-15 mm. long; excipulum and hypothecium formed of 

 slender, interwoven hyphae; asci narrowly cylindrical, 



