[Vol. 3 

 340 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fructification rosiipinate, effused, not separable from the 

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

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

 spongy, about 1 mm. thick when dry, distending 

 to IV2-2 mm. when moistened, with hyphae 

 3-31/2M 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- jjjg obliquely SO as to form a spongy structure 



fication show- with vacant spaces up to 800 X ^OO/j., united 

 structure "x 9 ^^0^'^ ^"^0 ^ coutinuous hymcnial crust 40-80/u 

 thick; probasidia, spores, and spore-bearing 

 organs not present. 



Fructification ''spreading for many inches," 1^2-2 mm. 

 thick. 



On bark of cacao trees. Cuba. 



S. Spongia is distinguished from our other species in the 

 group having a glabrous hymenial crust by the spon.gy, 

 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: C. 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/* 

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

 thick-walled, 4ij. in diameter, loosely interwoven and ascend- 



