Rhizopogon 



HYMENOGASTRACE/E 



491 



CXXVII. RHIZOPOGON Fr. 



(From the tuberous growth with the attached fibres ; 

 Gr. rhiza^ a root, pogon, a beard.) 



Peridium thick, subcoriaceous or submembranous, continuous or 

 cracked and somewhat evanescent, with vein-like branched fibres 



Fig. 144. A, B, Rhizopogon^ rubescens Tul., entire and in section. X \. 

 c, basidium and spores. X 660. 



traversing and partially adnate to the surface; substance of gleba 

 firm, cavities at first empty. Spores 2-7. (Fig. 144.) 



Species 2108, 2109 



2108. R. rubeseens Tul. (from its becoming vinous rose-colour when 



bruised ; rubescens > becoming red) a b c. 



Irregularly subglobose or ovate. Pe. silky, white, when mature 

 yellow, olive or warm-brown. Gl. at first white, then yellowish, 

 greenish or brownish. 



Somewhat superficial but often some inches deep. Odour acid, when young 

 like sour ham, at length nauseous-fetid. Sandy fir-woods, plantations in 

 very light peaty or fibrous soil, amongst pines. Oct. Dec. Diam. i in. 

 Var. Berkeleyanus W. G. Sm., Melanogaster Berkeley/amis Br., smaller and 

 highly fetid. 



