1924] 
BURT—THE THELEPHORACEAE OF NORTH AMERICA. XII 25 
On decorticated, very rotten wood. Margarita Island, Vene- 
zuela. July. 
This species is closely related to S. poriaeformis, but may be 
distinguished from the latter by smaller, partially buried fructi- 
fications, smaller basidia, and smaller spores of elongated rather 
than subglobose form. It may possibly range tarihe north into 
the West Indies. 
Specimens examined: 
Venezuela: Margarita Island, A. F. Blakeslee, type (in Farlow 
Herb., and Mo. Bot. Gard. Herb., 56064). 
11. S. endophila (Ces.) Fries, Hym. Eur. 705. 1874; Басс. 
Syll. Fung. 6: 427. 1888. 
Cyphella endophila Cesati in Rabenhorst, Fungi Eur., 1513, 
with description. 1872; Mattirolo, Ассай. Scienze Torino Atti 
22:—pl. 4. 1887. 
Type: type distribution in Rabenhorst, Fungi Eur., 1513. 
Fructifications densely crowded together, curving upward 
from a continuous carpet (often evanescent) of short, suberect, 
colored hyphae, furfuraceous-villose, at first whitish, becoming 
ochraceous when old, attenuated towards the base into a short 
stem; the disk rather pale; hairs colored, even, flexuous, 40-45 
X 3-414 y; basidia simple, 12-14 x 414-5 и; spores colored, 
even, 6-7 X 4—5 y, copious. 
Fructifications 1 mm. long, 200-300 œ in diameter, usually 
somewhat scattered but crowded in some places up to 2-3 to а 
mm. | 
On rotten, decorticated wood and bark of Populus and other 
frondose species. Southern Europe, Maine, Vermont, Florida, 
Colorado, and South America. August to March. Rare. 
A great deal of powdery matter covers the hairy fructification 
and is the cause of its whitish color. 8. endophila is readily 
distinguished from our other species by its colored spores. 
Specimens examined: 
Exsiccati: Rabenhorst, Fungi Eur., 1513, type distribution; 
Theissen, Dec. Fung. Brasilium, 165. 
Italy: Cesati, in Rabenhorst, Fungi Eur., 1513. 
Maine: Kittery Point, R. Thaxter, comm. by W. С. Farlow, 1 
(in Mo. Bot. Gard. Herb., 43804). 
