Report of the State Botanist. 19 



This species resembles M. lacrymans in habit and color, 

 but it is thinner and more fragile, with smaller pores 

 and spores, and it is especially distinguished by the elongated or 

 Subulate teeth that project from the older parts of the hymenium. 

 It is referable to the section Coniophori. 



Merulius tenuis n. sp. 



Resupinate, very thin, tender, reddish-brown inclining to liver 

 color, the margin webby-tomentose, whitish ; dissepiments nar- 

 row, irregular, forming shallow unequal pores ; spores colored, 

 .00035 to .0004 in. long, .00025 to .0003 broad. 



Much decayed wood. Ithaca. Dudley. 



The color of the dried specimens i;esembles that of Persoon's 

 figure of M. pulcher, but the dissepiments and pores are 

 different. This species also is referable to the section Coniophori. 



Stereum populneum n. sjx 



Resupinate, very thin, orbicular, often confluent in patches, 

 minutely rimose, brown tinged with liver color, minutely whitish- 

 punctate under a lens, the thin radiate-dentate margin a little 

 paler, at length becoming more or less free ; spores oblong, .0005 

 to .0006 in. long, .00016 broad. 



Bark of prostrate trunks of poplar, Populus tremuloides. 

 Adirondack mountains. August. 



This is distinct from all allied species by its peculiar color, its 

 minutely chinky and punctate hymenium and its subfree dentate 

 margin. 



It is related to S. albobadium. 



Stereum ambiguum n. sp. 



Resupinate, suborbicular or irregular, soon confluent in patches, 

 one-half to one line thick, dry, subcork}"^ but brittle, tawny- 

 brown and subtomentose beneath ; the hymenium !:awny-brown 

 becoming paler or grayish tawny with age, rimose when mature, 

 with a faintly pulvei'ulent or pruinose-velvety appearance ; the 

 margin vellowish, generally becoming free; spores oblong or 

 subfusiform, .0005 to .0007 in. long, .0002 broad. 



Wood and bark of prostrate trunks of spruce, Picta nigra 

 Adirondack mountains. June. 



