98 Murrill: Polvporaceae of North America 



Berlin. Specimens were sent to various mycologists and one of 

 them was described by Karsten as Phyllodontia Magnusii, in 

 honor of the discoverer, and became the type of a new genus. 

 Hennings later found specimens of the same form in the same 

 place, and traced their connection with Daedalca wiicolor. 



Ccrrena wiicolor is extremely abundant on stumps, logs and 

 various other forms of decaying deciduous wood in the north tem- 

 perate zone. New pilei form early in the season from the old 

 ones, the surface being at first light yellowish-white and very 

 hairy, becoming gray with age. The tubes are porous in very 

 young stages, but soon unite into complicated labyrinthiform 

 channels and later split up into teeth resembling those found in 

 the Hydnaceae. No choice beyond deciduous wood is apparent as 

 regards host; oak, beech, poplar, walnut, hickory, birch, elm, 

 apple and various other broad-leaved trees serving as food when 

 dead or decayed. 



Specimens have been examined in all the published exsiccati 

 that pretend to exhibit northern plants of this group. From the 

 following list a good idea may be gained of the wide range of the 

 species : Russia, Jaczewski ; Sweden, Romdl ; Germany, Magnus ; 

 Austria, Bresadola ; France, Patouillard ; Newfoundland, Wag- 

 home; Maine, Ellis ; New Hampshire, Gerard, Blake, Jeffries ; 

 Massachusetts, Miss Minns ; New York, Shear, Ellis, Underwood, 

 Earle, Peek, Murrill ; New Jersey, Ellis, Underwovd, Earle, Mur- 

 rill; Pennsylvania, Herbst, Stevenson, Small, Banker ; Delaware, 

 Commons ; West Virginia, Nuttall ; Virginia, Murrill 252 ; Ohio, 

 Morgan, Lloyd ; Illinois, Mrs. Roy ; Missouri, Demetrio ; Kansas, 

 Cragin ; Michigan, Pieters, Wood; Iowa, Norway. 



Species inquirendae 

 Dacdalea tortuosa Cragin, Bull. Washburn Lab. Nat. Hist. 

 1:26. 1884. Jour. Myc. I: 28. 1885. Described from speci- 

 mens collected on rotten logs at Topeka, Kansas, as follows : 

 " Pilei dimidiate, convex, often imbricated and confluent, between 

 corky and woody, strigose-roughened, pale yellowish-brown, be- 

 coming smoother and paler, internally concolorous, zonate, one- 

 twelfth to one-eighth of an inch thick, usually once or twice sul- 

 cate near the acute, minutely repand, ferruginous-brown margin. 



