1924* 
BURT—THE THELEPHORACEAE OF NORTH AMERICA. XIII 17 
mm. where confluent, the free surfaces of the exterior clothed 
with weak, matted, hyaline, even hairs up to 30 y long by 1 y in 
diameter; spores copious, hyaline, even, subglobose, slightly 
flattened on one side, 412-5 x 4-41 y. 
Covering areas 3-7 cm. long, 1% em. broad. 
On decorticated, decaying wood of Tsuga. Adirondack 
Mountains, New York. 
The hairs on the exterior are like ordinary hyphae of the walls 
and radiate outward only up to 30 y rather than like the much 
larger, distinctive, external hairs of C. fasciculata; the cups are 
so firmly grown together that they are more or less mutilated and 
the walls torn in teasing the fructifications apart with needles 
under the dissecting microscope when immersed in water. This 
species is noteworthy by the confluence of the cups as well as by 
the matted, weak hairs. 
Specimens examined: 
New York: Adirondack Mts., C. H. Peck, type (in N. Y. State 
Mus. Herb.). 
4. S. conferta Burt, n. sp. 
Type: in Mo. Bot. Gard. Herb. 
Fructifications crowded, sometimes up to 4 to а mm. and then 
somewhat confluent, cylindric, white with slight creamy tint, 
clothed with slender, appressed, even hairs 75 X 214-3 u, sub- 
hyaline, slightly yellowish in preparations stained with eosin; 
basidia simple, 12-15 X 4 y, with 4 sterigmata; spores white in 
а spore collection, even, 4-6 X 2-3 y. 
Fruetifieations about 1 mm. high, 200-300 y in diameter, 
covering areas 10 em. or more in diameter. 
On rotten wood. Alabama and Missouri. November. 
This species may be only a small-spored form of S. fasciculata 
but it seems to me distinct by its fructifications becoming 
densely crowded and somewhat confluent, by the smaller spores, 
and by the hairs being slightly yellowish. It was distributed by 
Ravenel under the name S. villosa, with the European concept 
of which it does not agree. Where most densely crowded, the 
fructifications shrink apart in drying, showing bare areas of wood 
as in 8. polyporoidea from which S. conferta differs in oblong 
