[Vor. 4 
330 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
consisting of a few hyaline hyphae 2-3 y in diameter, thin- 
walled, not incrusted, nodose-septate, often collapsed; no 
eystidia; База clavate; spores hyaline, even, subglobose, 
apiculate at base, 24 » in diameter. 
Fructification 13 mm. long, 2-3 mm. broad. 
Running over podetia of the lichen, Stereocaulon. New 
York. September. Rare. 
This Merulius may be recognized by the tenuity and cob- 
webby structure of the membranous portion of its fructifica- 
tion in contrast with the more compact, elevated, colonial buff 
folds, by the small subglobose, hyaline spores, and by occur- 
rence on a lichen, perhaps. 
Specimens examined: 
New York: North Elba, C. H. Peck, P33, type (in Mo. Bot. 
Gard. Herb., 43612, and N. Y. State Herb.). 
16. М. dubius Burt, п. sp. 
Type: in N. Y. Bot. Gard. Herb. 
Fructification resupinate, effused, fleshy, separable, trans- 
lucent when fresh, drying from pinkish buff to pale ecru-drab, 
the margin determinate, lobed, barely free in some places; 
hymenium reticulate-plicate near the margin, 
000 with the folds growing out to form oblique 
оо 
Fig. 14 angular pores 2-3 mm. long, about 3-4 to a 
за mm., with the dissepiments thin, edges entire 
M. dubius. 
е up and acute; in structure 150 ш thick, composed 
'" `` of hyaline hyphae running parallel with the 
substratum and crowded densely together, 3 u in diameter, 
not inerusted, not nodose-septate; spores hyaline, even, sub- 
globose, 34-4 y in diameter, borne four to a basidium. 
Fruetifieations 4-8 em. long, 21-4 em. broad. 
On rotten stump in beech woods. New York? September. 
The specimens of this species were growing on the side of 
the stump, with their tubes nearly vertical and showing full 
length of pores and their mouths in only a few small portions 
of the best-developed fructification. Sections from near the 
margin where the hymenium is merely reticulate-plicate show 
the hymenium well developed and with spores borne on the 
