TREES AND TIMBER 



413 



belong to two kinds: ono bearing its spores upon gills, 

 Fig. 184; the other with its spores borne in pores, Fig. 211. 



Fig. 177. — Wound of properly removed limb nicely healed over. After 

 Ind. Agr. Exp. Sta. ' 



Still others bear their spores upon spines. In describing 

 the fructification of the causal fungi for recognition pur- 

 poses it is necessary to note especially the stalk, or stipe, and 

 the cap or pileus, Fig. 184. A cap with no stalk is " sessile." 



