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DESCRIPTION OF TWO UNDERGROUND FUNGI. 



By L. Rodway, C.M.G. 



(Read 8th October, 1923.) 



Tasmania is peculiarly rich in underground funtri be- 

 longing to the family H i/moiogastracea.', and new members 

 are constantly being found. I wish here to record two such 

 plants. They both belong to the genus Hydnanyium. 



Hydnangium clelandi, v.s. Subglobose without a sterile 

 base, 1-2 cm. diameter. Peridium pale yellow, tough, about 

 one millimetre thick, readily .separating. Gleba compact, 

 dark brown, often with a greenish tinge; spore cavities large, 

 isodiametric, as in H. tasmavicum, separated by thin tramal 

 plates. Spores pale yellow, globose, smooth, or becoming 

 slightly rough when old, 21 M-- diameter, exospore very thick. 

 It differs from H. urcheri in the absence of a sterile base and 

 smooth spores. 



Underground on hills about Hobart. Rare. 



Named in recognition of the work done in mycology by 

 Dr. Cleland of the Adelaide University. 



Hydnangium vic'alpinei, n.s. Irregularly globose, with- 

 out a sterile base, very dark, 1.5 cm. Peridium thin, ttmgh. 

 Tramal plates very thin, gleba dense, nearly black. Spores 

 very dark brown, globose, i)-10 ;" , rough, with small warts. 



Very similar to H. tasmanicum, but the spores niucli 

 darker, and not echinulate. 



South Australia. 



Named in honour of D. McAlpine, of Melbourne. 



