458 FUNGUS-FLORA. 



Stilbum Ucolor, Pers., Syn., p. 682. 

 On trunks, branches, &c. 



HABPOGKAPHIUM. Sacc. (fig. 30, p. 397.) 



Stroma forming a stem, apex forming a head or equal, 

 sooty-brown, bearing more or less loose paler conidiophores 

 upwards ; conidia elongated or falciform, continuous, 

 hyaline. 



HarpograpJiium, Sacc., Mich., ii. p. 33; Sacc., Syll., iv. 

 p. 619. 



Only differs from GrapMum in the elongated or falciform 

 conidia. 



Harpographium graminum. Cke. & Mass. (fig. 30, 



p. 397.) 



Solitary, scattered, very minute ; stem consisting of a 

 fascicle of septate, olive hyphae, becoming free and spread- 

 ing above ; conidia cylindric-fusiform, 2-guttulate, hyaline, 

 12 x 5 p. 



HarpograpJiium graminum, Cke. & Mass., Grev., xvi. p. 81. 

 On straw. 



STYSANUS. Corda. (fig. 28, p. 397.) 



Stroma erect, cylindrical or clavate, brown, rather rigid ; 

 conidia ovoid, lemon-shaped, or somewhat fusoid, subhyaline, 

 concatenate, grouped into an oblong or subglobose, somewhat 

 lax, terminal panicle. 



Stysanus, Corda, Icon. Fung., i. p. 21 ; Sacc., Syll., iv. 

 p. 620. 



^ Stysanus stemonites. Corda. (fig. 28, p. 397.) 

 Gregarious, stem simple, thin, blackish-brown, consisting 



of septate, olive-brown, parallel hyphae, which separate above 



into a cylindrical head; conidia ovate or lemon-shaped, 



concatenate, almost colourless, 8 x 5 /x. 



Stysanus stemonites, Corda, Icon. Fung., i. p. 22, t. vi. 



f. 283; Sacc., Syll., iv. n. 2951. 

 On trunks, branches, leaves, &c. 



