1917] 
BURT—MERULIUS IN NORTH AMERICA 319 
periment Station, W. Н. Long & Р. W. Seay, comm. by 
W. H. Long, 21485 (in Mo. Bot. Gard. Herb., 54911) ; Tyom 
Experiment Station, W. Н. Long, 21355, 21867 (in Mo. Bot. 
Gard. Herb., 54927 and 54926). 
6. M. confluens Schweinitz, Naturforsch. Ges. Leipzig 
Schrift. 1: 92. 1822; Fries, Elenchus Fung. 1: 57. 1828; Ерісг. 
500. 1838; басс. Syll. Fung. 6: 411. 1888. 
Merulius haedinus Berk. & Curtis, Grevillea 1: 69. 1872; 
Saec. Syll. Fung. 6: 414. 1888.—М. Ulmi Peck, №. Y. State 
Mus. Bul. 105: 26. 1906; басе. Syll. Fung. 21 : 361. 1913.—An 
M. sulcatus Peck, Bot. Gaz. 4: 138. 1879? 
Type: in Herb. Sehweinitz, a portion in Curtis Herb., and 
probably in Herb. Fries. 
Fructification resupinate, longitudinally effused, coriaceous, 
soft, thin, the margin free, inflexed, subtomen- 
tose, shallowly, concentrically suleate when < 0 
broadly reflexed, drying white to pallid neutral = S 
gray; the hymenium drying pinkish cinna- Ра 
mon to pecan-brown, reticulately porose with 
pores about 2-4 to a mm., shallow; in struc- HP M К 
ture 300—500 и thick, composed of loosely in-  Spores, incrusted 
terwoven, hyaline hyphae 3-34 шіп diameter, Карп Е 
incrusted near the hymenium; по cystidia; 
spores hyaline, even, cylindric, flattened on опе side, 
43-5 X25 и. 
Fructifications 1-4 ст. in diameter, usually laterally con- 
fluent on a horizontal surface for 4-10 em. and more, the re- 
flexed margin 1-10 mm. broad. 
On bark of dead branches of alder, ete., rare on conifers. 
Janada to Alabama, Tennessee to Nebraska, British Columbia 
to Oregon, and in Bermuda and Cuba. July to January. 
M. confluens has the general aspect of M. corium, but is dis- 
tinguished from that species by frequently a more broadly re- 
flexed margin, which is shallowly, concentrically suleate when 
broadly reflexed, by larger and usually deeper pores, by the 
incrusted hyphae of the subhymenial region, and by the small 
spores. Dr. House is unable to find the type of M. sulcatus 
Fig. 6 
