153 



564. Tuber maculatum Vittadini Syll. VIII «'", Fisch. V^ Syn: 

 Tub. suecicum Wittrock, Syll. VIII ==', Tuber rapaeodorum R 84 j ^°» 

 etc. &. Lund 74, not Tulasne (see Th. Fries 09 ""), Skarptlugtende 

 Treffel (R 04 a ''''). 



J. Skagen (Fru M. Krayer), Hobro (Joh. March), Viborg (Tolderlund) ; S. 

 Tisvilde (Frydensberg), Botanisk Have (Didrichsen), Landbohajskolens Have 

 (87 A. Bruun & 09 ! ), Frederiksberg Kirkegaard (A. Bruun), Hvalsa Apoteks 

 Have (72 see Samsae Lund 74). 



Cenococcum. 



565. Cenococcum geophilum Fries S. M. Ill «« 6. '", Syll. VIII "\ 

 Th. Fries 09 ^''^ 



It is to be doubted if the small, hollow, black, brittle bales are true 

 fungi; Th. Fries considers them to be dead and subfossile remnants 

 of a fungus; others even consider them only a conglutination of 

 humous matters which for unknown reasons assume this shape. 

 They are often found in the lower strata and seem to belong to the 

 diluvial layers of the period of the tundra-vegetation after the glacial 

 period or during the interglacial periods (see Hartz 09 ^"", ''*'', ^''^ ^"^X 

 It is also common in peat-bogs. In both of these places it is, no doubt, 

 dead and subfossile. But where it occurs in an upper stratum it is 

 always on a certain level above the stratum consisting of pure sand 

 and in the layer containing the vegetable matters and most frequently 

 saturated with humous acid. In such places I have found Cenococcum 

 by thousands both in Calluneta and in Querceta in Jutland. I have 

 never been able to find it in connection with any mycelium, and only 

 very seldom have I found them to be divided into chambers inside 

 such as delineated by Tulasne (Hypogaei). 



It will, no doubt, be found everywhere where moore-formation 

 occurs in the soil of forests, its presence has been noted in the sandy 

 parts of Jutland and Seeland both under Picea, Fagus, Quercus and 

 Calluna, the first known finding-place is J. a copse of oak near Her- 

 ning (Oct. 78. P. E. Miiller see R 84 j). 



Plectascineae. 



Gymnoasceae. 



Gymnoascus. 



566. Gymnoascus ossicola Rostrup 97 m ''^ Syll. XIV ^'^\ see fig. 

 6 tab. I. 



