966 a The North American. Geasters. [ October, 
ner peridium sessile; the mouth pli- 
cate-striate, in a compressed margin 
ate disk (Fig. 4). 
Segments of the outer peridium 
7-10, unequal, sublanceolate. Inner 
peridium globose or depressed glo- 
bose, blackish umber, about 1⁄4 an 
inch in diameter; the mouth conic, 
plicate-striate, in a circular depressed 
marginate umbilicus; spores .0035-.0040™™ 
3 LIMBATI, 
Outer peridium single, expanded, multifid ; inner peridium pedi- 
cellate. 
6. G. bryantii Berk.—Inner peridium pedicellate, the pedicel 
with a circumscissile sheath; mouth conic, sulcate-plicate 
(Fig. 5). À 
Rig. 5. 
Outer peridium concave or vaulted underneath the base; $8 
ments 8-10, unequal, acute, inflexed at the apex; a tubu — 
sheath surrounds the pedicel, which bursts as the plant expands, . 
the upper part remaining as a ring about the summit of the ped ie 
cel. Inner peridium subglobose, brown, 34-1 inch in diametes, 
the mouth prominent, conic, plicate ; spores 0040-00457" 
7. G. limbatus Fr.— Inner peridium pedicellate, the: pa : 
solid; mouth depressed, subacute, fimbriate pilose (Fig: 6). 
The outer peridium is concave or vaulted, and the segme'” 
inflexed as in G. dryantii, but there is no tubular sheath about 
he 
pedicel ; the pedicel is short, a little thickened upward, pa?" > : 
into the inner peridium. Inner peridium subglobose, brownish, 
: 
a 
