384 MTXOGASTEES. 



On moss. Appin. 

 The columella resembles that of D. timlj'dicatum. 



1113. Diderma nitens. Klotsch. " Shining Diderma." 



Applanato-sessile, round, hemisplierical, c^espitose, outer peri- 

 dium crust-like, silvery white, brittle, inner very thin hyaline, 

 columella none, spores black-brown. — Klotsch. in Hook. Herh. 

 Eng.Fl.Y.iy.2>l2. 



On bark. Appin. 



1114. Diderma globosum. Fr. " Globose Diderma." 



Sessile, globoso-hemispherical ; outer peridium white, inner 

 cinereous, columella globose, spores sooty-black. — Fr. S.M. iii. 

 p. 106. Mich. t. 96,/. 6. Bull. t. 446,/. 2. Pers. Disp. t. 4, / 4, 5. 

 Sturm, t. 6. Grev. 1. 122. Chev. t. 9,/. 28. Eng. Fl. Y.p. 312. 

 Bisch.f. 3629. 



On dead leaves. Autumn. Common. [United States.] 



Gregarious, sessile, minute, about a line in diameter, roundish, somewhat 

 depressed, white, or greyish, the outer peridium fragile and evanescent in 

 farinaceous particles ; the inner one also fragile, grey, membranaceous. 

 Columella large, white, roundish. Spores globose dark coloured, intermixed 

 with filaments. — Grev. 



1115. Diderma cyanescens. Fr. " Amorphous Diderma." 



Sessile-adnate, sub-rotund, irregular, outer peridium thick, 

 white, inner ash-colour, columella none, ilocci and s^Dores black- 

 brown.— i^r. S.M. m.p. 109. Nees.f. 105 ? Eng. Fl. Y.p. 312. 



On dead oak leaves. 



Outer peridium crustaceous, white, like the shell of some small ^gg, inner 

 peridium in the dry state brownish, except at the base, where it is adnata 

 and rufous.— ^?i^. Fl. 



1116. Diderma deplanatum. Fr, " Depressed Diderma." 



Sessile, rounded, outer peridium thick, white, inner very thin, 

 hyaline, columella and flocci none, spores black-brown. — Fr, 

 aS'.^. iii.;?. 110. Hoff.F.G.t.^J.2. Eng. Fl. Y.p. ^12. 



On dead oak leaves. Appin. 



When the spores have fallen out, the base within is of a somewhat tawny 

 tinge. There are a few flocci. — Eng.Fl. 



1117. Diderma contextum. Fr. "Interwoven Diderma." 



Sessile, crowded ; peridia elongated, flexuose, outer lemon- 

 coloured ; inner whitish-yellow, columella none, flocci white, 



