MEEULIUS. 185 



MEEULIUS, HaU. (fig. 13, p. 184.) 



HymenophoTe resting on a loose nmcedinous mycelium, 

 covered with tlie soft, contimions hymeninm, having its 

 surface variously plicate or rugose, the folds forming irre- 

 gular pores, and sometimes ohsoletely toothed ; spores colour- 

 less or coloured. 



Merulius, Hall, Helv. (emend.), p. 150 ; Stev., Fung., p. 

 227. 



Mostly growing on wood, at first soft and mucedinous, 

 when the hymenium is formed often suhgelatinous. Eesu- 

 pinate or effuso-reflexed. Distinguished from Phlebia by 

 the irregularly porous hymenium, and from Poria by the 

 very shallow irregular pores and the soft consistency. 



FIGURES ILLUSTEATING THE POLTPOEEAE. 



Fig. 1, JDaedalea querema, entire fungus ; mnch reduced ; — Pig. 2, 

 Trametes gibbota, entire fungus ; mucli reduced ; — Pig. 3, section of same ; 

 much reduced ; — Pig. 4, Boletus luteus, entire fungus ; much reduced ; — 

 Pig. 5, section of same ; mnch reduced ; — ^Pig. 6, Basidium with four 

 spores of same ; highly mag. : — ^Pig. 7, StrdbUomyces strdbil<iceu8, spores 

 of: highly mag.; — Pig. 8, Fistulina hepatica, group of plants; much 

 reduced ; — ^Fig. 9, spores of same ; highly mag. ; — Pig 10, section of same ; 

 mnch reduced ; — ^Pig. 11, Poria medidla-panu, portion of a specimen; nat. 

 size; — Fig. 12, section of same, showing the exceedingly thin stratum of 

 flesh ; nat size ; — Pig. 13, Meridius corium, two parts of plants, one 

 effused, with the upper margin free and reflexed ; the other resupinate, with 

 the margin free ; nat. size ; — Fig. 14, Polyporus fumomg, illustrating the 

 dimidiate or imbricated, horizontal, laterally attached form ; nat. size ; — 

 Fig. 15, section of same, showing the very short tabes : nat. size ; — Fig. 16, 

 Polyporus perennis, illustrating the mesopod or central stemmed type, the 

 pUeus is infundibuliform or ftmnel-shaped ; nat. size ; — Fig. 17, section of 

 same; nat. size; — Fig. 18, PolysHctus versicolor, showing the velvety, 

 zoned, upper surface of the pUeus ; smaU specimen, nat. size ; — Pig. 19, 

 portion of under or hymenial surface of same, showing the openings of the 

 minute pores; nat. size; — ^Pig. 20, Fames igniarius, portion of a plant, 

 showing the thick, hoof-shaped, concentrically sulcate pileus ; the section 

 shows the stratified tubes, each stratum corresponding to one year's 

 growth ; reduced ; — Pig. 21, Poria Gordoniensis, showing the variable, 

 irregularly angular openings of the tubes ; enlarged. 



