580 POLYPOBUS 



**P. smooth. 



1917. P. Rostkovii Fr. Rostk. Polyp, t. 17, as Polyporus infundibuli- 

 formis Rostk. 



Dr Friedrich Wilhelm Theophilus Rostkovius, one of the editors 

 and illustrators of Sturm's Deutschlands Flora. 

 P. 3-15 cm., smoke colour, or sometimes yellowish, dimidiato-mfundi- 

 buliform, fleshy pliant, thin, smooth, even. St. 7-15 cm., black, ex- 

 centric, often connate and caespitose at the thickened base, reticu- 

 lated. Tubes white, then dingy yellowish, very decurrent, 4-8 mm. long; 

 orifice of pores white, then ochraceous, large, pentagonal, or oblong, 

 acute, toothed. Flesh white, soft. Spores " almost colourless, elongate- 

 elliptical, 14-16 x 5-6 //." Massee, "guttulate" Quel. Smell pleasant. 

 Stumps, and trunks, especially ash. July Jan. Uncommon. 



V. P. compound, many pileoli arising from a common trunk, or 

 tubercle, or caespitose and imbricate. Spores white, or pale yellow- 

 ish. Of large size, growing on wood or the roots of trees. 

 A. P. fleshy, firm, many pileoli arising from a common stalk. 



1918. P. umbellatus Fr. Rolland, Champ, t. 91, no. 200. 



Umbella, a parasol. 



P. 1-4 cm., fuliginous, rufous, or pallid light yellow, rarely white, 

 convex, umbilicate, entire, pruinose, or villose. St. 2-3 x -5-1 cm., 

 white, branched, arising from a common stalk which is often developed 

 from a sclerotium, each branch giving rise to a separate p., pruinose. 

 Tubes white, decurrent, -5 mm. long; orifice of pores white, minute, 

 round, or angular. Flesh white, soft, elastic. Spores white, oblong, 

 or pip-shaped, 7-9 x 3/x, 1-2-guttulate. Smell pleasant. Edible. 

 Forming large tufts on and around old stumps. July Oct. Not 

 uncommon, (v.v.) 



1919. P. frondosus (Fl. Dan.) Fr. Rolland, Champ, t. 91, no. 201. 



Frondosus, leafy. 



P. 2-6 cm., fuliginous grey, or greyish tan colour; margin often white, 

 dimidiate, spathulate, lobed, intricately recurved, rugose, pruinose, 

 or villose. St. 10-30 x 510 cm., white, Incoming discoloured, sparingly 

 branched, smooth. Tubes white, decurrent, -5 mm. long; orifice of pores 

 white, very small, round, or polygonal, then denticulate. Flesh white, 

 becoming discoloured, fibrous, firm. Spores white, subglobose, 6 x 5/z, 

 punctate. Smell of new meal. Edible, but rather tough. Forming 

 large tufts on oaks, hornbeam, and old stumps. Sept. Oct. Not un- 

 common, (v.v.) 



1920. P. intybaceus Fr. Rolland, Champ, t. 92, no. 202. 



evrvftov, chicory. 

 P. 3-6 cm., pale yellowish inclining to fuscous, nut colour becoming 



