Fidiijo. 339 



Forest, Epping, Hereford, Scarboro', Carlisle, Denbigh, Appin, 

 N. B.) ; Europe ; U. States ; Tasmania. 



Usually tlensely gregarious, sometimes several sporangia are 

 more or less grown together, 2—3 mm. high, distinguished by 

 the pyriform or obovate, polished sporangia. 



(Rostafinski's Synonyms.) 



Lycoperdon fragile, Dicks. Cr., t. 3, f. 3 (1785) ; Sow., t. 136. 

 Retimlaria fragilis, Poir, Ency. 

 Zycoperdmi pao'asiticum, With. Arr., iv., 379 (1792). 

 Didcrma vcrnicomm, Pers., Obs., t. 3, f. 7 (1796); Fl. Dan., 



t. 1312; f. 2 ; Eng. FL, v., 311 ; Cooke, Hdbk., n. 1108. 

 Trichia lutea, Trent., p. 230 (1797). 



Diderma vernicosum, ^.parasitica, Pers., Syn., 165 (1801). 

 Plmjsarum nitiduin, Schum., Saell., 1451 (1803). 

 Physarum vernicosum, Schum., Saell., 1452 (1803). 

 Lcocarpus vernicosus, Link, Obs., i., 25 (1809); Nees., f. 100; 



Grev., S. C. Fl., iii. ; Corda, v., f. 32. 

 Leocarp'us sp)crmoides, Link, Obs., i., 25 (1809). 

 LcocarpiLS atrovirens, Fr., Gast., p. 13 (1817). 

 Lcaiigium vernicositm, Fr., Stirp., 83 (1825). 

 Diderma atrovirens, Fr., S. M., iii., 103 (1829). 

 Tripotrichia elcgans, Corda, Ic, i., f. 288 A (1837). 



FULIGO, Rost. 



A pulvinate, large, irregular aethalium, formed of intertwined, 

 elongated sporangia, springing from a tough hypothallus, the 

 peripheral sporangia forming a friable, spurious cortex contain- 

 ing a large quantity of lime; capillitium strongly developed, 

 threads anastomosing to form a very irregular network, furnished 

 with irregularly stellate nodes containing granules of lime. 



Fidigo, Rost., Mon., p. 134 ; Cooke, Myx. Brit., p. 23 ; Sacc, 

 Syll., vii., 1, p. 353; Zopf, 149. 



Closely approaching the genus Physanuii in the structure of 

 the capillitium, differing in its aethalioid nature, a character 

 certainly not of generic value taken alone. The absence of a 



