446 FUNGUS-FLORA. 



Stilbum ramigenum. Sacc. 



Stem citrin-yellow, cylindrical, formed of filiform, septate, 

 fasciculated hyphae, expanding at the apex into a sub- 

 globose head; hyphae attenuated at the apex, bearing 

 numerous short, lateral conidiophores ; coiiidia globose, 

 echinulate, 10 p. diameter, collecting in masses. 



Stilbum ramigenum, Sacc., Syll., iv. n, 2719. 



Acremonium ramigenum, B. & Br., Ann. Nat. Hist., n. 1319, 

 t. 18, f. 10. 



On rotten branches. 



Stilbum melleum. B. & Br. 



Minute; pale yellow; stem short, hispid, dilated above; 

 conidia globose, 1 5-2 p. diameter ; globose, warted, honey- 

 coloured, crystallised bodies 12-15 p diameter are mixed with 

 the conidia. 



Stilbum melleum, B. & Br., Ann. Nat. Hist., n. 1G09, t. 10, 

 fig. 5 ; Sacc., Syll., iv. n. 2667. 



On bark. 



Stilbum citrinellum. Cke. & Mass. (figs. 20-22, p. 

 442.) 



Minute, scattered, stem erect, cylindrical, whitish, a little 

 attenuated upwards ; head subglobose, lemon-yellow ; com- 

 pacted hyphae furcate at the tips ; conidia solitary, elliptical, 

 continuous, hyaline, 7-9 X 4 /x. 



Stilbum citrinellum, Cke. & Massee, Grev., vol. xvi. p. 81. 



On fading leaves of Lycopodium. Whole fungus about 

 2 mm. high. 



ISAEIA. Pers. (fig. 31, p. 397.) 



Stroma erect, clavate and simple or variously branched or 

 fimbriated, consisting of loosely compacted hyphae, every- 

 where bearing conidia that are borne at the tips of the 

 hyphae; conidia minute, globose or elliptical, continuous, 

 colourless. 



Isaria, Persoon, Tent. Disp., p. 41 ; Sacc., Syll., iv. p. 584. 



On the pupa, larval, or imago condition of insects, also on 

 wood, dung, leaves, &c. The species on insects are mostly 

 conidial conditions of species of Cordyceps. 



