110 



Mycologia 



9- Gasparrini, Guiglielmo. Ricerche sulla natura della Pietra fungaia, etc. 

 (Atti. Accad. Pontan. 2, ser. II, Napoli, 1841, p. 197, 5 tab.) 



10. Mattirolo. Notes sur I'histoire de la Pietra fungaia, Bull. Soc. Acclimat. 



France, 1914- 



11. Maiden, I. K. Native Bread or Native Truffle, Polyporus Mylittae C. & M. 



syn. Mylittae Australis, Berk. Agr. Gaz. N. S. W. IV, Pt. 12, 1893. 



12. Cooke, M. C. A Mystery Solved. Sclerotium of Mylitta with Polyporus 



ovinus. Gard. Chron., Oct. 20th, 1892. 



Explanation of Plates 



Plate 7. Underground sclerotia of the Canadian Tuckahoe (Grifola 

 Tuckahoe Giissow). Left specimen showing groove resulting from at- 

 tachment to root. Central specimen, portion of sectional sclerotium. The 

 largest specimen shown weighed 8 lbs. 4 ozs. 



Plate 8, Fruiting bodies growing from sclerotium of Tuckahoe. 



Plate 9. A, Mycelial hyphae from interior of sclerotia showing hooks and 

 clamp cells ; B, structure of black substance of sclerotium showing size of the 

 two mycelia present; C, spores of Grifolia Tuckahoe; D, germination from 

 one to four days ; E, pores of hymenium ; F, diagram showing relative size of 

 tubes to pileus. 



