'2^ Tin; IIVMEMxiAsTUACK-K OK TASMANIA, 



4. RHIZOPOGON, Tul. 



Peridiuni thick or thin, continuous with strands of 

 mycelium which partially envelope the surface. Gleba 

 dense, hymenial cavities very numerous, small, and con- 

 torted. Trama very thin subgelatinous. Spores oblong, 

 smooth. Sterile base not developed. The genus is only 

 separated from Ilysterangium by the mycelial strands aris- 

 ing from the surface. 



RHIZOPOGON RUFESCENS, Tul. 



Irregularly globose, 2-4 cm. diameter. Sm-face pale 

 at fii-st, then pinkish brown. Peridiura vei'y thin, con- 

 tinuous with the trama. and the suiTounding mycelium, not 

 generally apparent at maturity. Gleba white, sometimes 

 cinerous, or brown when beyond maturity. Spores oblong, 

 obtuse, smooth, 11x5 micron. 



A common European species, found up to the jjresent 

 in Tasmania only beneath Austrian Pines. Probably in- 

 troduced with that plant, and symbiotically associated with 

 it. 



5. PIYMENOGASTER, Tul. 



Peridium fleshy, generally thin. Gleba fleshy, the 

 hymenial cavities small and irregular, trama thin, formed 

 of elongated cells, not floccose nor gelatinous. Spores 

 generally elliptic or fusiform, rarely nearly globose, gene, 

 rally rough, papillate, or sulcate, rarely smooth. Sterile 

 base present, sometimes piercing the greater part of the 

 gleba. 



Like most genera of this family, not marked by any 

 positive character. Distinguished by the consistence of 

 the trama, sterile base, and elongated rough spores, with 

 which are associated forms that appear to have a closer 

 afiinity here than elsewhere. 



HYMENOGASTER ALBELLUS, Mass. et Rod. 

 ("Kew Bulletin," June, 1898.) 



Irregularly globose, pale, 2-3 cm. diameter. Peridium 

 thin, cellular, distinct. Gleba pale brown, Arm, the spaces 

 not minute. Sterile base reduced to a flat cushion. Spores 

 elliptic, obtuse, or with one or both ends narrow, yellowish 

 brown, minutelv warted, 16-17 x 8-9 micron. 



