GO A Monogntph of the Mijxogastres. 



Co'ihrcma minima, B. and C, Grev., Vol. ii., p. 67. 



Crihraria viinutissima, Rost., Won., App., p. 31 ; Sacc, Syll., 

 n. 1405 (in part). 



(Type in Herb. Berk., n. 10874.) 



On pine planks. Lower Carolina. 



Scattered, about f mm. high, stem erect, or usually curved 

 above. Perfectly distinct from C. minutissiiiia in the presence 

 of a well-developed calyculus occupying the basal half of the 

 sporangium. Most nearly allied to C. intricata, which is distinct 

 in its larger size, presence of granules in nodes of network and 

 minutely warted spores. Rostafinski has evidently not seen 

 the type specimen of the present species, otherwise he could 

 not jDossibly have given it as a synonym of G. minutissima. 



Cribraria mirabilis, Mass. 



Sporangium spherical with a small, irregular calyculus; 

 2Jcrsistent thickened pm^tions of wall continuing for some distance 

 from the base as inore or less parallel, irregular, flattened ribs, 

 joined laterally by thin threads, towards the apex forming an 

 irreo'ular network with large, irregular nodes; mass of spores 

 obscure fulvous, spores smooth, 7 ju. diameter. 



Hctcrodictyon mirahile, Rost., Mon., p. 231, fig. 16; Cooke, 

 Myx. Brit., fig. 16 ; Sacc, Syll., no. 1403. 



Germany. 



The characteristics of the present species are— the small, 

 irregular calyculus, and the great length of the more or less 

 parallel flattened ribs, which only break up to form a reticu- 

 lation towards the apex of the sporangium. 



Cribraria Bieniaszii, Mass. 

 Sporangia globose, stipitate, brown, calyculus occupying the 

 lower third of the siiorangium, on the inside furnished with a 

 thickened network, margin dentate, teeth 30 — 40, continuing 

 Hpirards as long, linear, parallel ribs united by very thin hori- 

 zontal strands, p)cissing above into a Cribraria-lihe nctivorh, nodes 

 small with from 3 — 6 angles and concave sides ; stem elongated, 

 becoming attenuated upwards, hnnv)i, expanding into a small 



