CHAPTER VIII: FUNGI WITH PORES— 

 BOLETACEy^; POLYPORACE/E 



The fungi with pores naturally divide into two groups. 

 The perishable fleshy fungi with pores easily separating from 

 the cap and from each other make the family Boletacece. The 

 perishable fleshy fungi, and the leathery, corky, membranous 

 or woody fungi, with pores permanently united to the cap and 

 to each other, make up the family Poly- 

 poracecB. In each the spores are borne on 

 the linings of pores or tubes placed close 

 ^ . , ^ , , together, so that on the surface of the cap they 



Section of a Boletus ° , ,-i , . . , / 



look much like large pin pricks on a stiff 

 cushion ; but in a sectional view, obtained by cutting the cap 

 from the upper surface to the lower, they look like tubes placed 

 side by side. 



Among the fleshy forms the genus Fistulina has the stem 

 lateral and the tubes close together, but distinct from each other. 

 The genus Boletus has the tubes easily separable from the cap, 

 and the genera Boletinus and Strobilomyces have the tubes quite 

 firmly connected. A brief comparison of essential points is 

 given in the table. 



1 . Stem strictly lateral. Mouths of the tubes separated from 



each other Genus Fistulina 



2. Stem central. Pores readily separating from the cap Genus Boletus 



3. Stem central or eccentric ; fleshy. Pores in more or less 



radiating rows Genus Boletinus 



4. Stem central, tough. Pores uniform. Cap woody Genus Strobilomyces 



GENUS FISTULINA 



The genus Fistulina contains one notable species, Fistulina 

 hepatica, so called from its resemblance to a liver. In its early 

 stages it somewhat resembles a strawberry, and later it may 



Bo-lg-ta'-9g-Ee FKs-tfl-li'-na B6-l«-ti'-nfls 



Po'-ly-pS-ra'-jS-as Bfi-le'-tiis Stro-bil-o'-my-fes 



103 



