DESCRIPTION OF PLATE XXIII 
EARTH-STARS (GEASTR/E) 
Fig. i .—Geaster hygromctricus : globose unexpanded plant, resembling 
a young puff-ball. 
Fig. 2.—Section of the same. 
Fig. 3.— G. liygrometricas : mature expanded plant, showing the seg¬ 
ments of the outer peridium, and the thin, stalkless, globose, inner 
peridium, with a torn aperture at its summit for the escape of the spores. 
Fig. 4. — G. hygrometricus : a dry specimen, showing the strongly 
incurved segments. 
Fig. 5.— G. mammosus, unexpanded, showing the upper surface. 
I'ig. 6 .—Ditto, showing the umbilicate base. 
Fig. 7.—G. mammosus: mature expanded plant. The exoperidium 
is divided almost to the base into many segments. The globose, sessile 
endoperidium has a protruding mouth seated on a definite area. 
Fig. 8. —G. fimbriatus: mature plant, showing the recurved segments 
of the exoperidium, the segmentation extending about halfway. 
Fig. 9.—G. fornicatus, showing the fornicate exoperidium arched 
over the separated mycelial layer, which remains as a cup on the 
ground, and attached to it by the tips of the segments. (All natural 
size, after Lloyd.) 
