Faligo. 339 



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

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



Usually densely 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. Or., t. 3, f. 3 (1785) ; Sow., t. 136. 

 Reticularia fragilis, Poir, Ency. 

 Lycoperdon parasiticum, With. Arr., iv., 379 (1792). 

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

 Physarum nitidum, Schum., Saell., 1451 (1803). 

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

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



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

 Leocarpus spermoides, Link, Obs., i., 25 (1809). 

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

 Leangium vernicosum, Fr., Stirp., 83 (1825). 

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

 Tripotrichia elegans, 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. 



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

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



Closely approaching the genus Physarum in the structure of 

 the capillitium, differing in its aethalioid nature, a character 

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



