Arcyria. 153 



Arcyria silacea, Ditm., t. 8 (1817). 



Arcyria ochroleuca, Fr.-S. M., iii., 181 (1829) ; Berk. Ann. N. 



Hist., No. 115 ; Cooke, Hdbk., No. 1175. 

 Arcyria hitea, Schwz. Fung. Car., 2339 (1831). 

 Arcyria globosa, Weinm, teste Fr. 

 Stemonitis ochracea, Opiz. herb. 



Arcyria cinerea. Var. cribroides, Raunk. 



Tubes of the capillitium broader than those of the type 

 species, the inner meshes equal and of ordinary width, on the 

 surface of the capillitium, on the contrary, groups of very small 

 meshes and single larger succeed each other alternately. 



Raunk., Myx. Dan., p. 107. 



On decayed branches of fir. Denmark. 



Arcyria digitata, Rost 



Scattered or gregarious, several sporangia, 3 7 ', fasciculate on 

 a common stem; sporangia shortly cylindrical, apex obtuse, basal 

 cup-like portion persistent ; mass of capillitium and spores pale 

 opaque greyish-yellow, or with an ochraceous tinge ; stem 

 elongated, equal, rather slender, expanded at the base into a 

 circular hypothallus ; capillitium dense, becoming very much 

 elongated after dehiscence, threads forming a network, meshes 

 very irregular in size ; here and there minutely warted, varying 

 in thickness; spores globose, smooth, 7 10 /u diameter. 



Arcyria digitata, Rost., Hon., p. 274; Sacc., Syll., vii., 1 

 n. 1460. 



Stemonitis digitata, Sz., Syn. Amer., n. 2350. 



(Specimen from Schweinitz in Hb. Berk.) 



Arcyria Leprieurii, Mont., Ann. Sci. Nat., Ser. IV., vol. iii., 

 p. 141. (Type in Herb. Mus., Paris.) 



Arcyria bicolor, B. and C., Journ. Linn. Soc., vol. x., p. 349. 

 (Type in Herb. Berk.) 



JExsicc. Fung. Cub. Wrightian., 542 (as Arcyria bicolor, 

 B. and C.). 



On wood and bark. Cuba ; U. States ; Cayenne. 



