STYSANUS GRAPHIOTHECIUM. 459 



Stysanus clematidis. Fckl. 



Steins gregarious, slender, striate, black, 1 line nigh ; the 

 conidia-bearing portion elongato-cylindrical, occupying half 

 the length of the stem, grey ; conidia elliptical, 8x2^, 

 hyaline. 



Stysanus clematidis, Fuckel, Svmb. Myc., p. 365; Sacc., 

 SylL, 29(50. 



On rotting stem of clematis. 



Stysanus putredinis. Corda. 



Tufts, eft'used, crowded, shining white, then mealy and 

 tinged with pale red ; stem straight, slender, wavy, downy 

 and somewhat pilose, white; head large, obovate, snow- 

 white ; chains of conidia at first few and distant, then 

 becoming numerous and crowded, short; conidia elliptic- 

 oblong, opalescent. 



Stysanus putredinis, Corda, Icon., iii. t. ii. f. 36 ; Sacc., 

 Syll., iv. n. 2965. 



On rotten leaves, stems, &c. 



GEAPHIOTHECIUM. Fuckel. (fig. 34, p. 397.) 



Stroma vertical, composed of fasciculate hyphae, inflated 

 at the base and resembling a perithecium. Conidia spring- 

 ing from the tips of the hyphae, continuous, fusoid, cate- 

 nulate. 



GrapJiiothecium, Fckl., Symb. Myc., p. 366 ; Sacc., Syll., iv. 

 p. 624. 



Distinguished amongst the genera with an elongated 

 vertical stroma composed of fasciculate hyphae by the very 

 much swollen base of the stroma, which resembles a perithe- 

 cium in appearance. 



Graphiothecium parasiticum. Sacc. (fig- 34, 



p. 397.) 



Very minute, rather scattered, simple, stem composed of 

 more or less parallel hyphae, very slender, siibulate, glabrous, 

 blackish-brown, base spherically incrassated, above cylin- 

 drical, white; chains of conidia short, conidia minute, 

 elliptical, colourless, 57 p. long. 



Grapfiiot hecium parasilicum, Sacc., Syll., iv. n. 2971. 



