60 A Monograph of the Myxogastres. 



Cribraria ininima, B. and C., Grev., Vol. ii., p. 67. 



Cribraria minutissima, Rost., Mon., 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. minutissima 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 possibly have given it as a synonym of C. minutissima. 



Cribraria mirabilis, Mass. 



Sporangium spherical with a small, irregular calyculus; 

 persistent thickened portions of watt continuing for some distance 

 from the lose as more or less parallel, irregular, flattened ribs, 

 joined laterally by thin threads, towards the apex forming an 

 irregular network with large, irregular nodes; mass of spores 

 obscure fulvous, spores smooth, 7 ju. diameter. 



Hctcrodictyon mirabile, 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 sporangium, on the inside furnished with a 

 thickened network, margin dentate, teeth 30 40, continuing 

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

 zontal strands, ^tossing above into a Cribr aria-like network, nodes 

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

 becoming attenuated upwards, brown, expanding into a small 



