HTMEN0MYGETE8. 



327 



come densely felted into tough masses five to ten or more 

 millimetres in thickness, and of many centimetres in 

 breadth and length ; it frequently also becomes compacted 



Fig. 236.— .4, cross-section of the gills or lamellae (l), of Agaricus camptstris ; A, 

 "portion of pileus ; J5, section of one of the gills, more highly magnified ; t, the cen-' 

 tral tissue of the gill {trama) ; sh, the sub-nymenial layer of short, rounded cells ; 

 Ay, hymenium. (7, a small portion of .B, more highly magnified ( < 550) ; t. trama ; 

 fi/i, sub-hymenial layer ; q^ young basidia and paraphyses ; »\ basidium with spores 

 in earliest stage ; s", basidium with spores nearly ripe ; 8"\ basidium with ripe 

 spores ; B'"',, basidium from which the ripe spores have fallen. — After Sachs. 



into cylindrical root-like forms (Fig. 235, A, in). Upon the 

 mycelium there arise, after a longer or shorter period of vege- 

 tation, small rounded or oblong masses, the young sporo- 



