272 A Monograph of the Myxogastres. 



Craterium Curtisii, Mass. 



Gregarious, sessile, obovate, fixed by a point to a very thin 

 hypothallus, umher-hroivn, wall tliin, smooth or sometimes rugu- 

 lose, soon disappearing at the apex ; capillitium dense, nodes 

 large, irregular, sepao^ated only hy short constrictions, everywhere 

 containing pale brown granules of lime, the nodes become 

 confluent towards the base and form an irregular columella ; 

 spores brown with indistinct lilac tinge, globose, minutely warted, 

 7 — 8 ju, diameter. 



Badhamia Curtisii, Rost., Mon. App,, p. 3; Sacc, Syll., vii., 

 1, n. 1159. 



Didymium Curtisii, Berk., Grev., vol. ii., p. 65. (Type in 

 Herb. Berk., n. 10,758.) " 



Bcypliium Curtisii, Rest., Mon., p. 149. 



On leaves, grass, &c. United States. 



Sporangial wall very thin, shining, containing very little or 

 no lime. About 1 mm. high, 



Craterium Fuckelii, Mass. (n. sp.). 



Sporangia perfectly globose, contracted below into a short, 

 stout stem, every part hrownish-ochre, upper portion breaking 

 away in an irregularly circumscissile manner; nodes of capil- 

 litium large, angular, combining towards the base to form an 

 irregular columella; spores dirty lilac, globose, rather coarsely 

 warted, 12 — 14 fx diameter. 



Craterium mutcdiile, Fr., in Fuckel's Fung. Rhen., Exs., n. 

 1455. (Kew copy.) 



On wood. Germany. 



Distinct from C. auretim in the globose, differently-coloured 

 sporangia, the absence of the long, thin internodes of the 

 capillitium, and the larger, coarsely-warted spores. 



Craterium minimum, B. and C. 



Sporangia broadly elliptical, apex convex, breaking away in 

 an irregularly circumscissile manner, pale yellow, becoming 



