1884.] The North American Geasters. 965 
2. G. radicans B. & C.—Inner coat vaulted, the segments re- 
flexed; inner peridium subpedicellate, the mouth ciliate, fimbriate. 
The inner coat is lifted up and vaulted on the tips of the outer 
coat as in G. fornicatus. The outer peridium arises out of root- 
ing fibers ; inner peridium reddish, very shortly pedicellate, about 
¥, of an inch in diameter; the mouth silky as in G. fimbriatus. 
3. G. triplex Jungh.—Inner coat detached about the middle 
and forming a cup; inner peridium sessile, the mouth ciliate- 
fimbriate (Fig. 2). 
Fig. 2. 
In this species the inner coat is not separated at the base 
or on the upper portion of the segments, but simply breaks 
away enough to form a cup about the inner peridium, Outer 
peridium 4-6-parted, the segments revolute ; inner peridium pal- 
lid, globose or depressed, 34-114 inches in diameter; Spores 
0050-.005 crs 
2. STRIATI. 
Outer peridium single, multipartite, the segments revolute ; inner 
peridium subsessile, the mouth sulcate-plicate. 
4. G. striatus DC.—Inner peridium subpedicellate ; the mouth - 
Prominent, conic, sulcate-striate : 
(Fig. 3). 
2 Segments of the outer perid- 
‘um 7-9, nearly equal, acumi- 
nate; pedicel various, often very 
‘ort. Inner peridium globose, 
Smooth or at first punctulate, 
umber-brown, 14-3% of an inch 
in diameter ; the mouth promi- 
nent, plicate; spores .0035- 
‘Ooqgo™™ 
