1918] 
BURT—THELEPHORACEAE OF NORTH AMERICA, IX 199 
branches are more or less abundant through the whole of the 
fructification. 
Fructifications at first 2-31-14 mm., becoming confluent 
over areas 3-8 em. X 5-10 mm. 
On dead stems of Rubus and Vitis. Massachusetts, Mary- 
land, and Mexico. November to April. Rare. 
This species closely resembles in aspect and general details 
of structure an authentic specimen of A. cerussatus in my 
herbarium, but differs from the latter species chiefly in hav- 
ing bottle-brush organs not confined to the hymenial surface 
but distributed through the whole thickness of the fructifica- 
tion; other less important differences are slightly larger 
spores and basidia and much larger sterigmata, and less 
widely effused fructifications. A. botryosus resembles A. 
nivosus somewhat in aspect but differs from it by having 
bottle-brush paraphyses. Thelephora albidocarnea Schw., 
originally collected on Vitis and to which I have referred in 
my herbarium two scanty collections on Vitis, has aspect very 
similar to A. botryosus, but sectional preparations of 7. albi- 
docarnea do not show gloeocystidia and apparently have much 
smaller basidia and spores. Т. albidocarnea should receive 
consideration when collections resembling A. botryosus are 
made on Vitis. 
Specimens examined: 
Massachusetts: Sharon, 4. P. D. Piguet, two collections (in 
Farlow Herb., and in Mo. Bot. Gard. Herb., 54774, 55277). 
Maryland: Takoma Park, C. L. Shear, 1025, type, 1127, and 
1357. 
Mexico: Jalapa, W. A. ё Edna L. Murrill, 320 (in N. Y. Bot. 
Gard. Herb., and in Mo. Bot. Gard. Herb., 54497). 
11. A. cremeus Burt, n. sp. 
Type: in Mo. Bot. Gard. Herb. 
Fruetifieations resupinate, effused, adnate, convex at first, 
then confluent and plane, drying cracked and eream-buff, the 
margin thick and entire; in structure 600—800 д thick, con- 
taining much crystalline matter arranged in layers, with 
hyphae suberect, interwoven; hymenium composed of clavate 
basidia, bottle-brush paraphyses 6-7 џ in diameter, and of 
