1917] 
BURT—-MERULIUS IN NORTH AMERICA 337 
Specimens examined: 
New Hampshire: Lonely Lake, Chocorua, W. G. Farlow, 
type (in Farlow Herb. and in Mo. Bot. Gard. Herb., 
44965). 
24. М. rugulosus Berk. & Curtis, Linn. Soc. Bot. Jour. 10: 
323. 1868; басс. Syll. Fung. 6: 413. 1888. 
Corticium saccharinum Berk. & Curtis, Linn. бос. Bot. Jour. 
10: 336. 1868; басс. Syll. Fung. 6: 622. 1888. 
Type: type and cotype in Kew Herb. and Curtis Herb. 
Fructification resupinate, effused, coriaceous-fleshy, the 
margin rather thick, lobed, colored like the 
hymenium; hymenium drying cream-buff 
and ochraceous salmon to tawny olive, some- 
what pulverulent, even at first, then some- 
what gyrose-plicate and becoming reticulate 6 е 
and imperfectly and shallowly рогоѕе with Q 
pores about 1 to а ши. ; in structure 200-400 S 
p thick, with densely arranged, obliquely 
ascending, interwoven, thick-walled, hyaline 
hyphae 4-41 u in diameter, not incrusted, 
among which in the subhymenial region and Fig. 22 
hymenium are numerous clavate, flexuous, м rugulosus. 
yellowish-eolored  gloeocystidia 60-100 Сера рх 
8-10 ш; spores hyaline, even, flattened on See б 21, f. 21. 
one side, 7-844-41 и. 
Commencing growth in small orbicular patches which be- 
come confluent in fructifications perhaps 7 em. long, 5 cm. 
broad. 
On dead wood and bark of frondose species. Cuba and 
Jamaica. January to March. Probably frequent. 
Fully developed specimens of this species are easily recog- 
nized at sight by their rugulose surface, cream-buff color, and 
firm structure. In the less-developed stage with the hymenium 
nearly even, the colored gloeocystidia, as seen best in lactic 
acid preparations, afford a positive character by which the 
species may be separated from Cuban Corticiums and 
Peniophoras. 
