1924] 
BURT—THE THELEPHORACEAE OF NORTH AMERICA. XIII 81 
Idaho: Priest River, J. E. Weir, 581 (in Mo. Bot. Gard. Herb., 
63172). : 
Washington: Hoquiom, C. J. Humphrey, 6411. 
California: A. J. McClatchie, type of Asterostroma pallidum (in 
Kew Herb., and Mo. Bot. Gard. Herb., 4792). 
Mexico: Xuchiles, near Cordoba, W. A. & E. L. Murrill, 1206, 
1212, comm. by N. Y. Bot. Gard. Herb. (in Mo. Bot. Gard. 
Herb., 54593 and 54594 respectively); near Guernavaca, 
W. A. & E. L. Murrill, 516, comm. by N. Y. Bot. Gard. Herb. 
(in Mo. Bot. Gard. Herb., 54517); Jalapa, W. A. & E. L. 
Murrill, 300, comm. by N. Y. Bot. Gard. Herb. (іп Mo. Bot. 
Gard. Herb., 54444). 
Porto Rico: Central Alianga, J. A. Stevenson, 6071 (in Mo. Bot. 
Gard. Herb., 54684) ; Rio Piedras, comm. by Mrs. Е. W. Patter- 
son. 
Japan: Awaji, Mt. Mikuma, A. Yasuda, 38 (in Mo. Bot. Gard. 
Herb., 56170). 
2. A. muscicolum (Berk. & Curtis) Massee, Linn. Soc. Bot. 
Jour. 25: 155. 1889. 
Hymenochaete muscicola Berk. & Curtis, Linn. Soc. Bot. Jour. 
10: 334. 1868; Saec. Syll. Fung. 6: 602. 1888. 
Type: in Kew Herb. and Curtis Herb. 
Fructification broadly effused, thin, spongy, dry, wood-brown 
of Ridgway, the margin narrow, whitish; hymenium concolorous 
with the subiculum or but slightly paler, even; in structure in 
section 300—400 џ thick, composed of thin-walled, loosely arranged 
hyaline hyphae and of very numerous, colored, stellate organs 
with 3-9 rays, the rays about 30-45 x 3-4V$ u, sometimes 
unbranched but many branched, becoming smaller and more 
branched towards, and in, the hymenium and bearing secondary 
whorls of small branches or with 2 stellate organs connected by 
a short, thick axis; cystidia few, not incrusted, 6 џ in diameter, 
protruding up to 27 y, tapering to a sharp point; spores hyaline, 
spherical, echinulate, the body 5-7 y in diameter, the spines 
numerous, close together, very distinct. 
Fruetifications up to 7 x 4 cm. when well developed. 
On dead branches of trees covered with moss, on cocoanut 
