92 British Fiin^i, 



columella, there is often a ring of considerable size. 

 Tlie cavity between the second membrane and the 

 columella is filled with elliptic sporidia, some of 

 which occasionally adhere to the stem. (Berk. Lc). 



The above account shows clearly that the present 

 species is not a Mucor as at present defined, but rather 

 belongs to the Piloholese, and further, appears to be 

 distinct from every known genas, but it is advisable 

 to allow the question to remain open until the fungus 

 is met with again. No structural details can be made 

 out from Berkeley's specimen. 



Mucor iiruinosus, B. and Br. 



Minute, snow-white; sporangia reticulated, globose ; 

 spores irregular, 17-30 /Lt. 



Mucor iwuinosuSj B. and Br., Ann. Nat. Hist. n. 

 1495. 



Forming an exceedingly thin, snow-white bloom on 

 soil. Rare. 



I can find no trace of the Mucor on the soil on 

 which it originally occurred, consequently no type 

 specimen exists, and it is doubtful whether, from the 

 above brief description, the species will ever be again 

 recognized. 



B. Bporanrjia colourless at maturity. 

 Mucor liyalinus, Cooke. 



Hyphasma creeping, profuse; sporaugiferous 

 hyph^ erect, simple, or sometimes branched ; 

 sporangia globose, minute, colourless ; spores 

 elliptical, colourless, 4x 2" 5-3 jm. 



Mucor liyalinus J Cke. Hdbk. n. 1890 ; Sacc. Syll. 

 vii. n. 682. 



