270 FUNGUS-FLORA. 



highly developed fungi belonging to other families, more 

 especially to the various orders of the Ascomycetes. All 

 such form-species are included in the present arrangement, 

 and their true relationship indicated where known. 



In dealing with the HypJiomycetes I have followed the 

 arrangement given by Saccardo in "Sylloge Fungorum," 

 vol. iv. 



KEY TO THE FAMILIES. 



I. MUCEDINEAE. 



Hyphae pallid or bright-coloured, collapsing, lax, crowded, 

 but not cohering in regular fascicles to form a stem-like 

 structure ; conidia similar in colour. 



II. DEMATIEAE. 



Hyphae dark coloured, brown or blackish, rather rigid, 

 crowded, but not fasciculate ; rarely somewhat hyaline, but 

 then the conidia are dark-coloured. 



III. STILBEAE. 



Hyphae pallid or brownish, densely coherent in elongated, 

 stom-like fascicles (= stipes). 



IV. TUBERCDLAEIEAE. 



Hyphae pallid or brownish, densely conglutinated into a 

 wart-like > tuft (= sporodocMum^ often seated on a compact, 

 stroma-hke base. 



Fam. I. MUCEDINEAE. Link, 



Hyphae white, pallid, or bright-coloured (rarely brownish), 

 forming cottony, or downy patches, soon collapsing, lax; 



