184 ENDOSPOREAE [CRIBRARIA 



Hab. _ On rotten wood. — Salzburg, Tyrol (B.M. slide) ; Bohemia 

 (Herb. Celakovsky) ; Switzerland (B.M. slide) ; Norway (B.M. slide) ; 

 Austria (B.M. 2764); New York (B.M. 1435); Maine (B.M. 1612). 



14. C. elegans Berk. & Curt, in Grev., ii. 67 (1873). PL a 

 modium ? Total height 0- 7 to 1-3 mm. Sporangia gregarious, 

 globose, stalked, erect or inclined, 03 to 0*4 mm. diam., red- 

 purple ; cup about half the height of the sporangium, with 

 the margin deeply toothed and perforated ; net of very slender 

 threads connecting numerous branching flat expanded nodes ; 

 both cup and nodes thickly studded with round purple plas- 

 modic granules 2 to 25 jx diam. Stalk subulate, nearly smooth, 

 0*6 to 1 mm. long, purple-black. Spores pale violet, almost 

 smooth, 4 to 6 //, diam. — Rost. Mon., App. p. 31 ; Mass. Mon., 

 55 ; Macbr. N.Am. Slime-Moulds, 169. 



PI. 146. — d. sporangia after dispersion of spores ; e. part of net and margin of 

 cup ; /. spore and plasmodic granules ; (United States). 



This species closely resembles a small form of C. purpurea ; hitherto 

 it has been obtained only from the United States, where, Prof. Macbride 

 writes, it is much the commoner of the two species. 



Hab. On dead wood.— New York (B.M. slide); S. Carolina (B.M. 675). 



15. C. violacea Rex in Proc. Acad. Nat. Sci. Phil., 1891. 

 393. Plasmodium deep violet-black. Total height 0-5 to 

 1 mm. Sporangia gregarious, globose or ellipsoid, stalked, 

 erect or slightly nodding, about 0'2 mm. diam., dark violet 

 with a metallic sheen ; cup varying from one-third to two- 

 thirds the height of the sporangium or more, membranous, 

 violet-blue, the margin scalloped with few short teeth ; net of 

 slender threads connected with broadly expanded, flat, angular 

 nodes ; " exceptionally the apical portion is nearly entire, 

 being simply perforated with three or four oval or rounded 

 openings " (Rex) ; the cup and nodes are studded with purple 

 plasmodic granules 0-5 to 1 a diam. Stalk slender, subulate, 

 violet-black. Spores lilac, minutely and closely warted, 6 to 

 8 //. diam. — Macbr. N. Am. Slime-Moulds, 168. 



PI. 1 46.-3. sporangium after dispersion of spores (England) ; k. part of net and 

 margin of cup of same ; i. sporangia after dispersion of spores (United States) ; k. 

 part of net and cup of same ; spore and plasmodic granules. 



This minute and widely distributed species differs from C. elegans 

 in the longer stalks, the smaller sporangia of a blue-, not red-purple, 

 colour, and in the larger spores. 



Hab. On dead wood of beech, poplar, etc. — Ivinghoe, Bucks 

 (B.M. 1436) • near Lyme Regis, Dorset (B.M. slide) ; Aberdeen (B.M. 

 slide) ; Berlin (B.M. 2765) ; Austria (B.M. slide) ; Cameroons, West 

 Africa (B.M. 2766) ; Ceylon (B.M. 2767) ; Japan (B.M. slide) ; 

 Philadelphia (B.M. slide) ; Colorado (B.M. 2768); Antigua (B.M. 1679). 



C. slellata Schum., C. didermoides Solium., O. badia Chev.,are 

 discarded by Rostafinski on what appear to be sufficient grounds. 



