1917] 
BURT—MERULIUS IN NORTH AMERICA 333 
broad, white margin, small, hyaline, allantoid spores, and col- 
ored paraphyses. In its peculiar color and margin, it strik- 
ingly resembles Polyporus haematodus Rost. (= Polyporus 
incarnatus Karst.) as received from Romell, and which I find 
in a very scanty specimen under the name Merulius serpens 
in Rabenhorst, Herb. Myc., 6, and Sydow, Мус. March., 3327, 
but all these European specimens are truly porose from the 
first, have thick dissepiments, and owe their dark color to 
dark, incrusting granules upon the hyphae. 
Specimens examined: 
Exsiccati: Ravenel, Fungi Car. 4: 9, originally issued under 
the name Merulius serpens but changed later. 
New York: Clearwater, Adirondack Mountains, G. Ё. Atkin- 
son, Bot. Dept. Cornell Univ., 4608. 
South Carolina: H. W. Ravenel, in Ravenel, Fungi Car. 
4:9, type distribution; Santee Canal, Н. W. Ravenel, 
658 (in Curtis Herb.), and Curtis Herb., 2965 (in Curtis 
Herb.). 
19. M. sulphureus Burt, n. sp. 
Type: in Farlow Herb. and Mo. Bot. Gard. Herb. 
Fructification resupinate, effused, thin, membranaceous, 
separable, somewhat pulverulent, drying between primrose- 
yellow and naphthalene-yellow throughout, the 
margin byssoid, concolorous; hymenium ( Y 
reticulate-plicate, becoming shallowly porose, O (2 
with the pores subequal, angular, about 2-3 to Fig. 17. 
a mm.; in structure 250—300 и thick, with the м. sulphureus. 
folds standing out up to 400 д further, com- Bee ol 22, F Te, 
posed of loosely interwoven, rather stiff, hya- 
line hyphae 3-41 y in diameter, not incrusted, not nodose- 
septate; no cystidia; spores hyaline, even, 44-6 24-34 y. 
Fructifications 3-5 cm. long, 1-2 еш. broad. 
On rotten frondose wood. Florida. Autumn. Rare. 
This Merulius should be easily recognized at sight by its 
resemblance in color, texture, and habit to Coniophora bys- 
soidea, but differing by reticulate folds, pores, and micro- 
scopic structure. 
