1924] 



BURT THE THELEPHORACEAE OF NORTH AMERICA. XIII 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 farther 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; Sacc. 

 Syll. Fung. 6: 427. 1888. 



Cyphella endophila Cesati in Rabenhorst, Fungi Eur., 1513, 

 with description. 1872; Mattirolo, Accad. Scienze Torino Atti 

 22: pi. 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^tJ^ V-> basidia simple, 12-14 X 4J^-5 \l; spores colored, 

 even, 6-7 X 4-5 [l, copious. 



Fructifications 1 mm. long, 200-300 [l in diameter, usually 

 somewhat scattered but crowded in some places up to 2-3 to a 

 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. S. 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. G. Farlow, 1 



(in Mo. Bot. Gard. Herb., 43804). 



