The Myxomycetes of the United States. 389 



34. TlLMADOCHE GRACILENTA (Fl\). 



Physarum gracilientum Fries, Sys. Myc, iii, 133. 

 Didymium furfuraceum Fr., Sys. Myc, iii, 116. Curt., Cat., p. 111. 

 Tilmadoche soluta Fries, S. V. S., 454. 

 On dead wood. Car. (Curt.). 



35. Tilmadoche mutabilis Rtfki. 

 Physarum aureum Pers., Disp., t. i, f. 6. Schw., Am. Bor., No. 2286. 

 Physarum viride Pers., Syn., 172, t. 24. Schw., Am. Bor., No. 2285. 

 Physarum nutans B. viride Fr., Sys. Myc, iii, 129. 

 Physarum nutans P. aureum Fr., Sys. Myc, iii, 129. 

 Physarum striatum C. aurantiacum Fr., Sys. Myc, iii, 131. 



Car. (Schw., Curt.); Bethlehem (Schw.). 

 Var. B. aurantiacum. Schw., Am. Bor., 2287. 



Car. (Schw.) ; San Francisco (Harkuess). 



36. Tilmadoche oblonga (B. and C). 

 Trichamphora oblongum B. and C, Grev., No. 360. 

 Spores -0075— •01 mm . 

 Pennsylvania (Micheuer). 



Genus 7. Leocarpus Link. 



37. Leocarpus fragilis (Dicks.). 

 Diderma vernicosum Pers., Obs., t. iii, f. 7. 

 Leocarpus vernicosus Link., Obs. i, 25. Nees, f. 110, Grev., t. 111. Rav., 



Fun. Car., i, 78. 

 Leangium vernicosum Fr., Stirp., p. 83. Schw., Am. Bor., 2303. 

 Spores -012— •014 m ™. 



On stems, leaves, etc. Bethlehem (Schw., Curt.) ; Boston (Farlow) ; 

 N. York (Peck) ; San Francisco (Harkuess). 



Genus 8. Fuligo Hall. 



38. Fuligo varians Sommf., Fl. Lapp. 

 Eeticularia rufa Schw., Am. Bor., 2377. 

 uEthalium septicum Fr. 

 uEihalium flavum Schw., Am. Bor., 2367. 

 ^Ethalium candidum Schw., Am. Bor., 2368. 

 JEthalium violaceum Schw., Am. Bor., 2369. 

 uEthalium vaporarium Pers., Schw., Am. Bor., 2370. 

 yEthalium ferrincola Schw., Am. Bor., 2372. 

 uEthalium geophilum Peck, N. Y. Reports. 



Spores -0075— •01 mm . 

 On wood, stumps, etc. Car. (Schw., Curt.) ; Penn. (Schw.) ; Boston 

 (Farlow); N. York (Peck). 



