Murrill: Polyporaceae of North America 603 



i. Sesia hirsuta (SchaefT.) Murrill 



Agaricus hirsutus SchaefT. Fung. Hist. pi. j6. 1762. 



Agaricus sacpiarius Wulf. in Jacq. Collect. I : 347. 1786. 



Agaricus boletiformis Sowerby, Eng. Fung. pi. 418. 18 14. 



Dacdalea saepiaria Fr. Obs. Myc. 1 : 105. 181 5. 



Lenzites saepiaria Fr. Epicr. 407. 1838. 



Lenzites rhabarbarina B. & C. Ann. Mag. Nat. Hist. II. 12 : 428. 



1858. — Greviliea, 1: 35. 1872. 

 Sesia Jiirsuta Murrill, Jour. Myc. 9: 88. 1903. 



This species is very abundant in the north temperate zone on 

 logs, stumps and various other decaying wood of pine, fir, spruce, 

 hemlock, juniper and other coniferous trees. It varies consider- 

 ably in its wide range. In the higher regions of Colorado and 

 adjoining states, for example, it is large and coarse and almost 

 shaggy ; while in the southeastern states, on the other hand, it is 

 thinner and less densely hirsute than the typical European form, 

 with more delicate, easily lacerated gills and a somewhat dif- 

 ferently colored surface. The latter form was described from South 

 Carolina by Berkeley and Curtis as Lenzites rhabarbarina, but I 

 cannot distinguish it specifically from many of the typical speci- 

 mens of 5. Jiirsuta. It has been quite frequently collected in the 

 South by Earle, Langlois, Britton, Schrenk and others. Another 

 form, called var. porosa by Peck, is very distinct and would con- 

 stitute a good species if it could be proven to be constant. In one 

 instance Peck found a number of specimens on a single pine trunk 

 that were all alike poroid. Further observation might establish a 

 definite form found sometimes alone and sometimes growing with 

 the species under consideration. 



From the large list of specimens examined in connection with 

 this study the following are listed to show the range of the species : 

 Canada, Macoun, Dearness ; New York, Peck, Jelliffe, Underwood ; 

 Maine, Miss White; New Jersey, Ellis ; Connecticut, Miss White ; 

 Ohio, Morgan; Colorado, Underwood & Sclby ; Montana, Ryd- 

 berg &. E. Bessey, Audwsou ; Tennessee, Murrill 68 o ; Virginia, 

 Murrill 121, 152; Alabama, Earle, Schrenk; Florida, Britton; 

 Louisiana, Langlois; Sweden, Murrill ; Switzerland, Murrill ; 

 Tyrol, Bresadola, Murrill. 



