326 FUNGUS-FLORA. 



AsteropJiora, Ditm., in Sturm's Deutschl. Fl., iii. p. 53 ; 

 Sacc., Syll., iv. p. 148. 



Shown by Brefeld to be the chlamydosporous state of 

 the parasitic agaric Nyctalis. 



Asterophora agaricicola. Corda. (fig. 5, p. 358.) 

 Hyphae filiform, septate, hyaline, interwoven, sparingly 

 branched; conidia globose or broadly ellipiical, stellataly 

 tuberculose, rarely 2 conidia superposed, hyaline then some- 

 what dingy ochraceous, 18-24 p.. 



Asterophora agaricicola, Corda, Ic. Fung., vi. p. 8, f. 24; 

 Sacc., Syll., n. 770. 



On the pileus of Nyctalis asterophora, of which Brefeld lias 

 proved it to be the chlamydosporous condition. 



Tribe 6. Vertidllieae. Sacc. 

 VEET1CILLIUM. Nees. (fig. 9, p. 274.) 



Vegetative hyphae creeping, septate, fertile erect, with 

 more or less elongated branches that are frequently branched, 

 and arranged in a verticillate manner; conidia solitary at 

 the tips of the branchlets, colourless or coloured, simple or 

 septate. 



Verficillium, Nees, Syst. der Pilze, p. 57; Sacc., Syll., iv. 

 p. 150. 



In most species both primary and secondary branches are 

 arranged in a verticillate manner, and the secondary branches 

 are thickened at the base, tapering towards the tip bearing 

 the conidium. 



A. Eu-VerticilUum. 



Branches almost straight ; heads of conidia not involved 

 in mucus. 



* Whitish. 



Verticillmm candelabrum. Bon. 



Tufts white, at first minute, then often growing into eacli 

 other, velvety, fertile hyphae erect, septate, primary branches 

 few, scattered, shorter towards top of main stem, ultimate 



