146 ENDOSPORE^. [CRIBRARIA. 



This species has hitherto heen found only in America ; the spores in 

 mass are described by Dr. Eex as " dull red, the colour of the paler 

 forms of C. 'purpurea." 



Hah. On dead wood— New York (L:B.M.114) ; Ohio (L:B.M.114) ; 

 S. Carolina (K. 1689). 



12. C. microcarpa Pers.,' Syn., p. 190 (1801). Plasmodium? 

 Total height 0-7 to 2 mm. Sporangia globose, gregarious, 

 stipitate, erect or nodding, 0-2 to 0-25 mm. diam., purple-brown; 

 cup rudimentary or wanting; net close, regular; nodes of the 

 net subglobose, prominent, about 10 /a diam., densely charged 

 with purple-brown plasmodic granules 1 to 2 ju, diam., connected 

 by five or six delicate pink threads. Stalk slender, four to ten 

 times the height of the sporangium, purple-brown. Spores pale 

 red, minutely fepinulose, 5 to 6 /x diam. — Rost., Men., p. 235 ; 

 Mass., Mon., p. 63. Crihraria capillaris Fr., Stirp. Femsj., p. 84. 

 Dictydium microcarpum, Schrad., Nov. Gen. PI. p. 13 (1797). 



Plate LY., B. — <?, e. sporangia after dispersion of spores, x 20 (<?. Germany, 

 Eostafinski's type, e. Dnited States) ;/. part of net with cup of sporangium, 

 X 180 (Germany) ; g. the same, x 180 (United States) ; Ji. spore and 

 plasmodic granules, x 600. 



Rab. On rotten wood. — Germany (B. M. 676) ; Freiburg, Germany 

 (Strassb. Herb.) ; Philadelphia (L:B.M.115). 



13. C. purpurea Schrad., Nov. Gen. PL, p. 8 (1797). 

 Plasmodium ? Total height 2-5 mm. Sporangia globose, stipitate, 

 erect or inclined, gregarious, 1 mm. diam., purple; cup one-third 

 of the sporangium, margin deeply toothed ; net of slender threads 

 with mesh of varjdng size, about 1 mm. diam., only a few of the 

 nodes expanded, flat, and angular ; the cup and net thickly 

 studded with round purple plasmodic granules, 2 to 2'5 /* diam. 

 Stalk cylindrical, furrowed, 1'5 mm. long, O'l mm. thick, purple- 

 black. Spores purplish, minutely warted, 5 to 6 /a diam. — Eost., 

 Mon., p. 233 ; Blytt, Bidr. K. Norg., Sop. iii., p. 10 ; Mass., Mon., 

 p. 57. 



Plate LVI., A. — a. sporangium after dispersion of spores, x 20 ; 6. part 

 of net of same, ^ 180 ; o. spore and plasmodic granules, v 600 (Salzburg, 

 Tyrol). 



Hah. On rotten wood. — Salzburg, Tyrol (L:B.M.116) ; Norway 

 (L:B.M.116 slide); Philadelphia (L:B.M.n6). 



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

 Plasmodium. 1 Total height 0'7 to 1'3 mm. Sporangium globose, 

 stipitate, erect or inclined, gregarious, 0'3 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, with numerous branching flat expansions at the nodee, 

 the cup and nodes thickly studded with round purple plasmodic 

 granules, 2 to 2'5 fi diam. Stalk subulate, nearly smooth, 0"6 to 

 1 mm. long, purple-black. Spores pale violet, almost smooth, 

 4 to 6 /A diam. — Post., Mon., App., p. 31 ; Mass., Mon., p. 55, 



