Spumana. 257 



figs. 158, 172, 175; Cke., Myx. Brit., p. 45, figs. 158, 172, 175; 

 Schroeter, p. 120 ; Raunk., Myx. Dan., p. 89 ; Sacc, Syll, 1338. 



^a;sicc.— Rab., Fung. Eur., 1323; Lib., PI. Crypt. Ard., Fasc. 

 IL, 179 ; Karst., Fung. Fenn., 497 ; Fckl., Fung. Rheu., 1471 ; 

 Syd., Myc. March., 397; Desm., Cr. Fr., ser. I., 768; Kunze, 

 Fung. Sel., 198. 



On wood, bark, leaves, twigs, grass, &c. Britain (Kew, 

 Scarboro', Carlisle, Capel Ciirig, Aboyne, N. B.) ; Germany ; 

 France ; Belgium ; Italy ; Hungary ; Denmark ; United States ; 

 Canada ; Australia ; S. Africa ; Ceylon. 



The Plasmodium often creeps up the stems of grasses for 

 a distance of several inches, forming aethalia varying from 

 I — 2 inches or more in length, at first covered with the thick, 

 white, common cortex, which soon falls away, leaving the 

 numerous, crowded, branched sporangia arranged in a dendritic 

 manner, and of a bluish-grey colour. Mass of spores blackish, 

 very copious and pulverulent. 



(Rostafinski's Synonyms.) 



Mucilago, 2, Mich., t. 96, f. 2 (1729). 



Mucorii, Gled. Meth., p. 160 (1753). 



Mucilago Crustacea alha, Batt., t. 40, f. 9, H. I. (1755). 



Mucilago, Hall, n. 2129 (1768). 



Byssus homhycina, Retz., V. Handl., 251 (1769). 



Mucilago filamentosa, Bonamy., t. 3 (1772). 



Beticularia alha, Bull., t. 326 (1791). 



Sjmmaria mucilago, Pers., Disp., t. 1, f. ct, h, c (1797). 



Beticularia ovata, Var., With. Arr., iv., 1978 (1803). 



Sjyumaria cm-nuta, Schum., Saell., 1415 (1803); Fl. Dan., 



t. 1978, f. 1. 

 Spumaria alba, D. C, Fl. Fr., ii., 261 (1805); Fr., Syst. 



Myc, iii., 25; Eng. Fl., v., 310; Cooke, Hdbk., n. 1103. 

 Spumaria alha, a. laminosa, (3. cornuta, Fr., S. M., iii., 95 



(1829). 

 Didymium spumarioidcs, Fr., S. M., iii., 95 (1829). 

 Diderina spumariacformc, Wallr., Fl. Germ., 2208 (1833). 



