964 The North American Geasters. [ October, 
on account of the size of the spores, which in the latter are — 
.oog™" G. bryantii is reported from New York by Professor — 
Peck. G. fibrillosus grows in Pennsylvania and Carolina, G. 
lľinkii does not appear to have been recorded since the time of the — 
great de Schweinitz. G. #7plex grows abundantly about Cin — 
cinnati, and Mr. Foerste found it near Detroit. G. striatus, vittatus, 
lageneformis have been found only in the Miami valley, but the 
two latter appear to me to be only fairly marked forms of G. sac- 
catus, and will probably be found along with it elsewhere. 
Our G. limbatus is the G. multifidum DC., of the Scottish 
cryptogamic flora and on the cover of Grevillea ; but the G. lim- 
batus of Grevillea, Vol. 11, Plate xvii, must be something else. 
The wonderful G. coliformis Pers, with many pedicels and numer- 
ous mouths, has not yet been found in this country. 
Geaster Mich., Earth Star-—Receptacle double, consisting of 
an outer and an inner peridium, growing separately and pef- 
sistent. Outer peridium fleshy-coriaceous, . thick, stellately 
divided into several segments ; inner peridium papyraceous, de- 
hiscing by a mouth at the apex; spores globose, brown, mostly 
echinulate. 
I. ForNICATI. 
Outer peridium double, separating 
into an outer and an inner cod 
1. G. fornicatus Fr—Inner cot 
vaulted, the segments  reflexe® 
inner peridium pedicellate, the 
mouth conic-striate (Fig. 1). 
The two coats of the outer per 
idium separate even to the tps 
the segments; the outer coat "™ 
mains firmly attached to pr? 
D while the inner becomes val r 
over it by the bending backward 
its segments; the inner peridi 
is thus uncovered and lifted a 
4-5, rarely more; inner peridium 
subglobose or depressed, MO" 
. less contracted at the bases” 
* et ac mouth always prominent oan 
cylindric, %4~1 inch in diameter ; spores .0035-.0040™™ 
Fig. 1, 
