MTXOGASTEES. 



385 



spores dingv. — Fr.S.M. iii. ^. 111. Sturm, t. 39. Berk. Ann. 

 N.H. no. 109. Bisch.f. 3624. 



On dead grass, fern, &c. "Wotiiorpe. [United States.] 



Gen.%0. 



Fig. 125. 



DIDYMIUM, Schrad. 



Peridium scaly or floc- 

 cose, bursting irregularly. 

 —Berk. Outl.p. 307. 



(Fig. 125.; 



Inner peridium very delicate ; 

 membranaceous, bursting irregu- 

 larly, externally clothed with the 

 bark-like outer peridium, which 

 breaks up into little furfuraceous 

 scales or mealy down. — -E'/i^' Fl. 

 v,j>.312. 



1118. 



Didymium xnelanopus. 



Didymium. 



Fr. " Black' stemmed 



Peridium hemispherical, depressed, erect, farinose, plano-um- 

 bilicate beneath, grey ; stem subulate, black, as well as the 

 columella; spores dingy brown. — Fr. S.M. iii. ^j. 114. Berk. 

 Ann. N.H. no. 382. Bisch.f. 3669. 



On bramble, [United States.] 



var. /3. clavus. Fr. Stem substriate, peridium farinoso-vil- 

 lous, concaye beneath, black. — Ann. N.H. no. 110, A. ^' S,t. 2, 

 /.2. 



On yarious substances. 



1119. Didymium haemisphericum. Fr. 



Didvmium."' 



Hemispherical 



Peridium hemispherical, depressed, erect, with a whitish yeil, 

 piano -umbilicate beneath; stem short, thick, whitish ; columella 

 obsolete ; spores sooty-black. — Fr. S.M. iii.^;. 115. Bull. t. 446, 

 /.I. Sow. t. 12. Fl.Dan.t.l972,f.2. 



On dead twigs, &c. 



The curious flat subhemispherical peridia, with a broad shallow umbiHcus 

 beneath, and the short, dirty-white stem, are characteristic. — Fn^. FL 



1120. Didym.ium fuzfuxaceum. Fr. " Scurfy Didymium." 



Peridium lenticular, cernuous,flocculoso -farinaceous, whitish- 

 cinereous, columella none; stem whitish, eyen ; spores blackish. 



T 5 



