170 
Spbxna argillacea, Peri\ ic\ piet. t. 3., 
£ I“3 Qquond ic,) 
Polymorpha; fed numquam globofa, ut ' 
SpkiSr fragiformis^ 
Vari crates pr^ecipUii' funt : 
SgfU conrct.%ta^ erumpens gregaria con- 
vexa eloagata utrinque attenuata rufo-fufea, 
fphsTuli.s fublatentibus. Tab. j. £ 2. a. b. c. 
Ex epidermide Betuhe alba transvertim 
erumpit, forma lanceolara diftincla, locis vero 
decorticatis fit. 
p, dihiti-.ta., fuperticialis effufa confluens 
planiarciiia, fphsrulis prominearibus. Tah. 
In truncis betiiHnis. 
Ab his magis recedit : 
9/* alnea , erumpens crafia varia fubnigre- 
fcens, fpharrulis prominentibus papillatis, 
Iu truncis alneis cortice cralfo tecHs. 
Forma in omnibus varietatibus a loco, cui 
innnfcitur, pendet. 
Dia^nons Sphecria fragi formis y fubglobo- 
fa confluens miniato -rubiginofa intus afro-ni- 
tenS; cortice difleparabili {decidua) y fphternlis 
papillatis. — Sph, rulnpnofay in truncis fagi- 
ueis SueeiiE vulgaris , huic vix affinis. — 
