REPORT OF THE STATE BOTANIST I917 IOI 



tramal tissue is of fairly compact structure. The hyphae of the 

 subiculum and the growing margin are quite large, averaging 3 to 7 

 fi in diameter. They are for the most part unbranched and in many 

 the walls are very thick — similar in that respect to those of P . 

 subacida and P. i n d u r a t a. Normal clamp connections 

 are not present on these but some of the hyphae show the char- 

 acteristic forms presented in plate 14, figure 4. At " a " apparently 

 the small outgrowth is a clamp connection, as in other species they 

 often appear so where a hypha breaks at a cross wall. At " b " 

 and " c " are larger bodies that still retain much of the characteris- 

 tic shape of clamps and in all probability have originated from 

 them. It would be interesting to know what developments such 

 apparently abnormal clamps might lead to in this and other species. 

 In the trama most of the hyphae are similar to those of the subi- 

 culum, but there are also some that are quite small, rarely more 

 than 2.5 fi in diameter. These are considerably branched but their 

 small size and their transparent nature makes it difficult to ascertain 

 whether or not cross walls and clamp connections are present. In 

 some cases they are easily detected (plate 14, figure 3) but there are 

 many small hyphae in which they are apparently lacking. 



The species is listed by Peck as growing on dead w r ood of decidu- 

 ous trees. There is not enough of the substratum attached to the 

 specimens to determine the host of the type collection nor the 

 nature of the decay resulting from the presence of the fungus. 

 But one collection of the species is preserved in the herbarium at 

 Albany. In most respects the species resembles Poria suba- 

 cida Peck, and may eventually be referred to that species. A fine 

 specimen has recently been received from E. T. Harper, collected 

 at Frankfort, Mich. 



Redescription. Effused for several centimeters, separable from 

 the matrix, with a narrow, sterile, nearly even, but rather thick 

 margin 1 to 4 mm broad, marked with scattered, rounded, depressed 

 spots ; subiculum evident but rather thin, white ; tubes 1 to 2 mm 

 long, or in vertical positions 4 to 6 mm long, often very oblique, 

 their mouths white when fresh (fide Peck), pinkish buff to pinkish 

 cinnamon in herbarium specimens, subrounded, gaping and oblique 

 in vertical positions, averaging 3 to 3.5 to a millimeter, the dissepi- 

 ments rather thick and finely pubescent when young, glabrous when 

 mature ; spores ellipsoidal or oblong-ellipsoidal, smooth, hyaline, 

 3.5 to 5 x 2.5 to 3 fx, often slightly obliquely apiculate ; basidia pyri- 

 form or short clavate, 3 to 5 /x in diameter; cystidia none; tramal 



