40 THE POLYPORACEAE OF WISCONSIN. 



This species is quite common growing on poplars, and oak. Speci- 

 mens have been collected at Sparta. Bangor, Madison, Horicon and on 

 Madaline Island. Dead poplar trunks and stumps seem to be the 

 favorite substrata. 



The pileus is dimidiate-sessile and sometimes even crescent form, 

 very often imbricated, and laterally confluent. The substance is dark 

 wood color, corky to fibrous, and about one half as thick as the length 

 of the pores, and, as McBride (15, p. 10) says — "it passes by imper- 

 ceptible transition into the matted hirsute outer coat." 



The margin is usually acute, but in a few specimens quite obtuse, 

 especially in younger specimens. It usually curves down when 

 dried. The pores are large, irregular, long, sometimes almost sinuous 

 and in old weathered specimens torn into teeth. In color they vary 

 from grayish brown to very dark brown. The pilei are variable in 

 size, being from 2 to 20 cm. in width; from 1 to 8 cm. in length and 

 from 0.25 to 1.5 cm. thick with pores from 0.5 cm. to 2 cm. in length. 



This species is closely related to T. Trogii, from which it differs in 

 its larger size, larger pores and darker color. It is easily recognized 

 by its seal-brown strongly strigose-hirsute pileus and the large irregu- 

 lar subdecurrent pores. 



Syn. : Funalia stuppens (Berk.) Murrill; 19, vol. 32, p. 356. 



Trametes heteromorpha (Fries) Bres. 



Pileus effuso-reflexed, thin, tubercular, fibrous-wrinkled, leathery, 

 pale-whitish; lamellae very broad, crowded, more or less anastomos- 

 ing, white, growing beyond the margin thus making it appear dentate. 

 On conifers. 



The above is Fries 's description of Lenzites heteromorplia. Peck 

 (Report no. 42, p. 120) says that L. lieteromorplia exhibits three forms; 

 the daedalioid, the trametoid and the lenzitoid. Bresadola places 

 them all in the genus Trametes. Our specimens belong to the daeda- 

 lioid and trametoid forms. 



The specimens are nearly pure white, thin but leathery-tough, much 

 effused and narrowly reflexed. The pores are large, shallow, varying 

 from roundish to labyrinthine. The leathery substance is easily separ- 

 able from the substratum and becomes hard and brittle when dry. 



Our specimens were found growing on fallen limbs, sticks and logs 

 at Shanagolden, Crandon and Ladysmith. The largest specimen 

 measured nearly 10 cm. in length and 3 to 4 cm. in width, 1 to 2 cm. 



