CRDBRARIAJ HETERODERMACEAE 183 



of the net purplish-brown, thickened, rather prominent, 

 charged with dark granules, polygonal, with few free rays, and 

 with slender connecting threads ; meshes of the net triangular. 

 Stalk very slender, subulate, often sinuous or wavy, dark 

 red-brown. Spores pale red, almost smooth, 5 to 6' 5 /x diam. — 

 Macbr. N. Am. Slime-Moulds, 170. C. cuprea Morg. Myx. 

 Miami Valley, 16 (1893) ; Macbr. I.e., 171. 



PL 145. — a. sporangia after dispersion of spores ; b. part of net and margin of cup 

 of sporangium ; c. spore and plasmodic granules ; (United States). 



This slender species somewhat resembles C. microcarpa, but differs 

 in the well developed cup, and in the paler smaller plasmodic 

 granules. 



Hob. On dead wood. — Austria (B.M. slide) ; Japan (B.M. 2757) ; 

 Ceylon (B.M. slide) ; Antigua (B.M. 1678) ; Santa Cruz, West Indies 

 (B.M. slide) ; New York (B.M. slide) ; Ohio (B.M. slide) ; South 

 Carolina (B.M. slide). 



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

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

 stalked, erect or nodding, 01 to 0*3 mm. diam., purplish-red ; 

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

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

 with usually very dark purple-brown plasmodic granules 



1 to 2/x diam., connected by five or six slender pink threads. 

 Stalks slender, four to ten times the height of the sporangium, 

 purple-brown. Spores pale red, minutely spinulose, 5 to 6 /* 

 diam.— Rost. Mon., p. 235 ; Mass. Mon., 63 ; Macbr. N. Am. 

 Slime-Moulds, 168 ? Petch in Ann. Pera., iv. 356. C. 

 capillaris Fr. Stirp. Femsj., 84 (1825) ? Dictydium micro- 

 carpum Schrad. Nov. Gen. PI., 13 (1797). 



PI. 145. — d. e. sporangia after dispersion of spores (d. Germany, specimen named 

 by Rostafinski, e. United States) ; /. part of net with cup of sporangium (Germany) ; 

 g. the same (United States) ; h. spore and plasmodic granules. 



Hob. On dead wood.— France (B.M. 2758) ; Germany (B.M. 676) ; 

 Austria (B.M. 2759) ; Portugal (B.M. 2760) ; Ceylon (B.M. 2761) ; 

 Japan (B.M. 2762) ; Philadelphia (B.M. slide) ; Connecticut (B.M. 

 2763). 



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

 modium ? Total height 2-5 mm. Sporangia gregarious, 

 globose, stalked, erect or inclined, 1 mm. diam-, purple ; cup 

 one-third of the sporangium, with a deeply toothed margin ; 

 net of slender threads with mesh of varying size, 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 fx diam. Stalk cylindrical, furrowed, 1-5 mm. long, 

 0*1 mm. thick, purple-black. Spores purplish, minutely 

 warted, 5 to 6 ^ diam. — Rost. Mon., p. 233 ; Mass. Mon., 

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



PI. 146. — o. sporangium after dispersion of spores ; b. part of net of same ; c. spore 

 and plasmodic granules ; (Salzburg, Tyrol). 



M 2 



