Didymmm. 235 



(Rostafiiiski's Synonyms.) 

 Lycopcrdon comi^hniatum, Batscli, t. 170 (178C). 

 Didymmm scrpida, Fr., S. M., iii., 126 (182!)); Eng. Fl., v., 



314; B. and Br., Ann. N. H., No. 1035; Ckc, Hdbk., 



n. 1134. 

 Physarurii conjlnem, Fckl., Symb. Myc, p. 342 (1809), non 



Pers. 



Didymium confluens, Rost, 



Simrangia sessile, sometimes scattered and then hemispherical, 

 at others densely crowded on a well-developed hypothallus, 

 hemispherical reniform, or irregularly angular from mutual 

 pressure; columella distinct, yclloioish, or with a ^nWj tinge; 

 threads of capillitium very slender, forlced at acute angles, ixde 

 hrownish-lilac' ; spores globose, rather coarsely wartcd, dingy 

 purple-brown, 10 — 15 // diameter. 



Didymium conjliiens, Rost., Mon., p. 164. 



Didymium erustaceum, Sacc, SylL, no. 1303. 



On leaves, wood, &c. Britain (Castle Howard, Yorks) ; 

 France; Italy; Russia; Finland. 



(Rostafinski's Synonyms.) 

 Didymium eomplanatum, Schrad., Nov, Plun. Gen., p. 24, t. 5, 



f. 5 (1797). 

 Physarum confluens, Pers. Syn., p. 169, et v., a truncigerum 



(1801). 

 Physarum confluens, /3 muscigcnum, A. et Sz., 1. c, p. 9 (1805). 

 Didymium erustaceum, F., 1. c, iii., p. 124; Excl. Syn. (1829). 

 Cionium complanatum, Lk. ap. Wallr., 1. c, no. 2176 (1833). 



Var. ohducens, Karst., Not. Sallsk., pro. faun, et flor. Fenn., 

 ix., p. 356 (1880). 



Sporangia irregular (plasmodiocarp), flattenetl, often umbili- 

 cate, concave below, solitary or gregarious, sometimes densely 

 crowded ; stem short or almost obsolete, irregular, broadening 

 out below into the common hypothallus. Remainder as in 

 type. 



