278 PHARMACEUTICAL BOTANY 
The pileus of Amanita muscaria is yellow, or orange-red; the 
surface is smooth, with prominent warty scales. 
The pileus of Amanita phalloides varies from dull yellow to olive 
to pure white. It does not possess the warty scales found in the 
Amanita muscaria, but occasionally has a few membranous patches. 
Division b.—Gasteromycetes 
(Hymenium inclosed) 
Order 1.—Lycoperdales, or puffball alliance. This order includes 
a number of interesting parasites and saprophytes the most common 
of which are the earth stars belonging to the genus Geaster and the 
Fig. 147.—A colony of Puff Balls, Lycoperdon, growing saprophytically upon a 
portion of a rotten log. (Photograph by author.) 
puff balls, the most common form being Lycoperdon. In these, the 
fruiting sporophore consists for the most part of a shell-like covering 
called the peridium, composed of an outer layer or exoperidium and 
an inner layer or endoperidium. The peridium in the unripe con¬ 
dition of the sporophore covers a mass of soft cellular tissue called 
the gleba. Upon the ripening of this mass, the interior is seen to be 
divided into many-branched compartments that are separated from 
each other by walls made up of branched hyphae. These walls are 
lined with a hymenium composed of many basidia, each of which 
