172 FUNGUS-FLOKA. 



membranaceous, composed of the finest down, margin byssoid, 

 pure white. 



Radulum tomentosum. Fr. 



Effused irregular for 1-3 in., rather thick, innate, whitish, 

 margin more or less free and erect, distinctly tomentose ; 

 tubercles short, crowded, irregular, subangular and often 

 confluent, smooth ; spores cylindric-oblong, slightly thinner, 

 curved, and apiculate at the base, 8 X 4 p.. 



Eadulum tomentosum, Fr., Epicr., 525 ; Stev., Fung., p. 252. 



On Pyrus, Salix, &c., also on pine sawdust. Distinguished 

 by the peculiarly-shaped spores and the tomentose margin, 

 which is sometimes brownish when dry. 



Radulum deglubens. B. & Br. 



Orbicular, about ^ in. across, margin broadly free and 

 upturned, smooth below, flesh-colour with rust tinge, dia- 

 phanous, sub-cartilaginous and rigid when dry ; tubercles 

 about 1 line long, very irregular, scattered, cylindrical or 

 compressed, plate-like and toothed, interstices mealy with the 

 white spores, which are cylindric-obloug, ends obtuse, 14-16 

 X 7-8 p., often slightly curved. 



Eadulum deglubens, B. & Br., Ann. Nat. Hist., n. 1440; 

 Stev., Fung., p. 252. 



On ash. Described from. Berkeley's type specimen. 



Radulum corallinum. B. & Br. 



Effused for 2-3 in., whitish, very thin and pelliculose, 

 shining, sterile portions flaking off, tubercles in scattered 

 fascicles ^1 in. across, very irregular, coralloid, 2-3 lines 

 long ; spores subglobose, apiculate, about 5 /x, diarn. 



Eadulum corallinum, B. & Br., Ann. Nat. Hist., n. 1441 ; 

 Stev., Fung., p, 252. 



On oak branches. Eemarkable for the very thin, shining 

 subiculuin, producing isolated, coral-like clusters of very 

 irregular, crowded tubercles. 



Radulum epileucum. B. & Br. 



Effused for several inches, very thin, entirely adnate ; 

 subiculuin white, mucedinous; hymenium waxy, polished, 



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pale ochraceous ; tubercles sparsely scattered, variable in 





