CONIOCETIIIUM. 427 



Sporodesmium chartarum, B. & C., N. Amer. Fung., n. 531 ; 

 Sacc., Syll., iv. n. 2413. 

 On damp paper. 



CONIOTHECIUM. Corda. (6g. 14, p. 397.) 



Conidia very irregular and variable in form, cruciate or 

 radiately septate, several often coalescent and forming black 

 points or spots on leaves or wood. 



Coniothecium, Corda, Icon. Fung., i. p. 2 ; Sacc., Syll., iv. 

 p. 508. 



Conidia usually very variable, resembling irregular con- 

 glomerations of cells of A r ariable size. A very badly defined 

 genus, and it is doubtful whether many of the so-called 

 species are such in reality. 



Coniothecium effusum. Corda. 



Black, broadly effused; conidia subglobose or irregular, 

 sessile, brown, semipellucid, clustered into irregular masses. 



Coniothecium effusum, Corda, Icon. Fung., i. p. 2, t. 1, f. 21 ; 

 Sacc., Syll., iv. n. 2420. 



Sporodesmium lepraria, Berk. 



On wood. 



Coniothecium conglutinatum. Corda. 



Tufts small, black, subglobose or confluent ; conidia 

 minute, ovoid, brown, 4-5 p. diam., aggregated in clusters. 



Coniothecium conglutinatum, Corda, Icon. Fung., i. p, 2, t. 1, 

 f. 20 ; Saco., Syll., iv. n. 2421. 



On birch wood, &c. 



Coniothecium amentacearum. Corda. 



Tufts pulvinate, black ; springing from a brown, fleshy, 

 lactiform stroma, conidia somewhat oblong, brown, 13-14 /x, 

 diameter, clustered. 



Coniothecium amentacearum, Corda, Ic. Fung., i. p. 2, t. 1, 

 f. 26 ; Sacc., Syll., iv. n. 2426. 



On dead branches of willow. 



Coniothecium betulinum. Corda. 

 Tufts small, solitary, black, innate in the wood, at first 

 covered, then erumpent, scarcely 1 mm. in diameter; conidia 

 black, subglobose, 4-6 p. diameter, clustered. 



