6. R. subiculata (Schw.) Sace. 
Spheria subiculata Schw. 
Hypoxylon subiculosum Berk. 
Rosellinia subiculata Sace. 
Perithecia thin, usually gregarious or crowded but often more or less 
scattered in the early stages; globose, brownish-black and shining, mostly 
superficial, about .75-1 mm. in diameter. Ostiolum small and papilliform. 
Perithecia seated on a sulphur-yellow, waxy-pruinose subiculum which 
disappears with age leaving the black, shining perithecia closely resembling 
R. mutans. 
Asci cylindrical (p sp.) 6.25 x 90 microns. 
Spores inequilateral, elliptical, brown, 5-6.25 x 10-12.5. 
Ellis and Everhart give asci 6-7 x 80-90. Spores 5-5.5 x 10-12 microns. 
Common on Quercus, Loriodendron, and other rotten deciduous wood 
near Bloomington, Ind., and Jolietville, Ind. 
7. Rk. pulreracea (Ehr.) Fekl. 
Spheeria pulveracea Ehr. 
Sordaria Friesii Niessl. 
Rosellinia pulveracea Fekl. 
Rosellinia Friesii Niessl. 
Sphreria millegraria Schw. 
Sphreria transversalis Schw. 
Perithecia very small and minutely roughened, about + mm. in diameter, 
densely gregarious, often forming a continuous crustaceous layer or scat- 
tered and tending to follow the check marks in the wood. Ostiolum papil- 
liform, soon perforated. 
Asci cylindrical (p sp.) 9-10 x 70-75 microns. 
Spores elliptical, brown, 7.5-8.75 x 11-13.25 microns. KE. & E. give asci 
10-12 x 60-70 microns. Sporidia 6-9 x 8-15 microns, mostly 7-8 x 10-12. 
Sommon on water beech and sycamore near Joiletville, Ind. Normally 
found on decorticated wood while it is yet more or less firm. 
8S. R. ligniaria (Grey.) Nke. 
Sphreria ligniaria Grey. 
Rosellinia ligniaria Sace. 
Perithecia gregarious or crowded, sometimes forming a crust similar 
to R. pulveraceze and in some cases tending to follow the check marks in 
