STYSANUS — GKAPHIOTHECIUM. 459 



Stysamis clematidis. Fckl. 



Stems gregarious, slender, striate, black, 1 line higli ; the 

 conidia-bearing portion elongato-cylindrical, occupying half 

 the length of the stem, grey ; conidia elliptical, 8 X 2 /x, 

 hyaline. 



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

 SylL, 2960. 



On rotting stem of clematis. 



Stysanus putredinis. Corda. 



Tufts, effused, 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. 



Grapliiothecium, 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.) 

 Yery minute, rather scattered, simple, stem composed of 

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

 blackish-brown, base spherically incrassated, above cylin- 

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

 elliptical, colourless, 5-7 /x long. 



Graphiothecium p)arasiticum, Sacc, Syll., iv. n. 2971. 



