102 NEW YORK STATE MUSEUM 



tissue rather compact, of hyaline, thin-walled, flexuous, branched 

 byphae, i to 2.5 ix in diameter; clamp connections small and incon- 

 spicuous ; subiculum h}phae mostly unbranched, 3 to 6 ju, in diameter 

 but often irregularly enlarged, with inconspicuous clamp connections. 



On prostrate trunks of deciduous trees. 



Type locality: Osceola, N. Y. C. H. Peck. Also found in 

 Michigan. 



Poria pinea (Peck) Sacc. 



Plate 15 



Syll. Fung., 9: 194. 1891 

 Polyporus pineus Peck, 41st Rep't N. Y. Slate Mus., p. 78. 1888 



Original description. Resupinate, irregular from the inequali- 

 ties of the matrix, rather tender but separable from the matrix, the 

 thin subiculum and margin whitish, sometimes tinged with yellow ; 

 pores rather large, angular, unequal, two to three lines long, often 

 oblique and lacerated, dingy whitish, becoming blackish where 

 bruised or wounded, the whole plant becoming blackish or blackish- 

 brown in drying. 



Wood and bark of pine. Selkirk. August. 



The species is apparently allied to P. o b 1 i q u u s , but the 

 pores can not be described as very small, nor has our plant an 

 " erect crested margin." It has a distinct subiculum on which the 

 pores are formed and by reason of which the plant is separable 

 from the matrix. 



Notes. This is a peculiar species and one can not obtain an ade- 

 quate idea of it from the dried specimens. The type collection 

 contains ratlier abundant material but in small pieces less than 5 

 cm long. The species is dingy white when fresh, becoming very 

 much darker on drying. The color of the hymenial surface at pres- 

 ent is near fuscous or bister. Very young specimens have a whitish 

 or yellowish sterile thin margin which may be somewhat fimbriate 

 and in old specimens disappears entirely. It is much lighter in 

 color than the hymenium, at least in the dried specimens. The 

 thickness of the hymenial surface varies up to 6 mm in dried speci- 

 mens, but probably the fresh specimens were somewhat thicker. 

 The tubes are 3 to 6 mm long and for the most part oblique on the 

 substratum. Their mouths average i>4 to 2 to a millimeter, but in 

 dr\ing are likelv to collapse more or less and so be obscured. They 

 are angular and the dissepiments are rather thin but entire (plate 

 15, figure i). There is no sheen or silkiness to the hymenium. 



