_ Me. N.H. Vt. Mass, R. I. Conn. 
Stereocaulon alpinum Laur. + + 
condensatum Hoffm. — 
ceralloides Fr. + 
denudatum Flke. 
nanodes Tuck.* 
paschale (L.) Ach. 
var. conglomeratum Fr. 
pileatum Ach. 
tomentosum Fr. 
ee 
ey 
b+++4 
| 
T 
+r 
++ 
++++4 
235 
S. pileatum Ach. 
Thallus fruticose (lcm. alt.) cinereus, primary thallus persistant, 
granular; podetia simple, glabrous, squamules coralline-granular often 
terminally sorediate. Apothecia globose, emarginate, terminal. Spores 
16.5-29 x 3.5-5 y. On rocks. 
S. paschale (L.) Ach. 
Thallus caespitose (6 cm. alt.), cinereus, primary thallus absent; 
podetia branched throughout, subglabrous, squamules palmate-digitate, 
or crenate-granulate. Apothecia globose, terminal or lateral. Spores 
15-85 x 2.5-5 y. On rocks or earth. 
GENUS: PILIPHORUS (Tuck.) Th. Fr. ; 
Thallus composite, podetia arachnoid or hollow, cortex cylindrical, 
ecorticate on a dorsiventral primary thallus. Apothecia emarginate, disk 
dark. Spores ellipsoid or fusiform, simple hyaline. 
Me. N.H. Vt. Mass. R.1. Conn. 
Piliphorus cereolus var. Fibula Tuck. © — + 
* Not included in the Key as no other specimens beside the type have 
ever been collected. S. condensatum Hoffm. has been collected in 
South Sudbury. 
40 
