Studies and Illustrations of Mushrooms: I. 



15 



see here that even this 



part of the plant is 



largely made up of fine 



threads of mycelium 



closely interlaced and 



woven together. 



Through the center of 



the gills the myceHum 



continues down from 



that of the pileus. This 



middle portion of the 



gill is termed the trama. 



Just outside of this, on 



either side, is a layer 



several cells deep of 



short cells termed the 



Sub-hy??ie?iium.Yrom\h.Q 97. — Agaricns campestns. Longitudinal section 



cells of the sub-hymeni- through stem and pileus: a, pileus ; b, por- 



tion of veil on margin of pileus ; c, gill; 

 {^ fragment of annul us J e, stipe. 



um are borne the club- 

 shaped bodies which 



—Agarictis cam- 

 pestris. Section 

 of two gill'!, tr. 

 trama ; hy, sii/i 

 hymenium ; b^ ba- 

 sidium. 



Stand closely 

 parallel in a 

 layer on each 

 "/} surface of the 

 gill forming the 

 hymenium. Each 

 of these club- 

 shaped cells is 

 termed a basid- 

 ium (the Latin 

 word for club) 

 Each basidium 

 bears at its free 

 extremity two 

 slender process- 

 es, which lend 

 to the basidium 

 a forked appear- 

 ance. Each one 

 of these pro- 



