[Vol. 3 

 340 ANNALS OF THE MISSOUKI BOTANICAL GAEDEN 



Fructification resupinate, effused, not separable from the 



substratum, dry, glabrous, shining, between mouse-gray and 



hair-brown, the margin strigose; in structure lacunose, 



spongy, about 1 mm. thick when dry, distending 



^^j^j^j^^^^v, to l%-2 mm. when moistened, with hyphae 



'CMfe.H^'i'f 3-3%/x in diameter, fuscous to clove-brown un- 



_ der the microscope, densely longitudinally ar- 



s. Spongia. ranged in masses along the substratum and ris- 



Verticai sec- \^^ obliquely SO as to form a spongy structure 



tion of fructi- P, ^ ^ ^^^ ^ ^^l^ 



fieation show- With Vacant spaccs up to 800 X 500/*, united 

 stnicture^x9 ^^C)ve iuto a continuous hymenial crust 40-80/1 

 thick; probasidia, spores, and spore-bearing 

 organs not present. 



Fructification ^'spreading for many inches,'' l%-2 mm. 

 thick. 



On bark of cacao trees. Cuba. 



8, Spongia is distinguished from our other species in the 

 group having a glabrous hymenial crust by the spong}^ 

 rather than pillared, structure of the middle region of the 

 fructification. The surface of the cotype is infested with 

 a colorless hyphomycete whose hyphae are densely crowded 

 together and agglutinated; hence fertile specimens of this 

 species will probably be browner than the original sterile, 

 infested specimen. 



Specimens examined: 

 Cuba: (7. Wright, 566, cotype (in Curtis Herb., and a por- 

 tion in Mo. Bot. Gard. Herb., 44592, by kindness of Dr. 



Farlow). 

 ? Mexico : Monterey, Sierra Madre, C. G, Pringle, comm. by 



W. G. Farlow, 6 (in Mo. Bot. Gard. Herb., 44591). 



15. S. fumigatum Burt, n. sp. 



Type: in Mo. Bot. Gard. Herb, and Humphrey Herb. 



Fructification resupinate, long and broadly effused, not 

 separable from substratum, coriaceous, tomentose, between 

 mouse-gray and hair-brown, rarely with surface pale, the 

 margin thinning out and concolorous ; in structure 800-1500/t 

 thick, with hyphae buify brown under the microscope, even, 

 thick-walled, 4/t in diameter, loosely interwoven and ascend- 



