TERMINOLOGY. 115 
In one genus of Musci (the Phascum), the oper- 
culum never separates from the theca: but as soon 
as the seed is ripe, the whole theca falls off. As no 
mouth can be seen in this Moss, it is said to be with- 
out one (peristoma nullum). 
§ 112. 
In the Fung the capsules are hidden in the sub- 
stance of the gills, pores, prickles or papilla, or 
where these are wanting, in the fleshy substance. 
The capsules open at the top and disperse the seeds in 
very slender fibres. In the genus Octospora, there 
are eight seeds in a capsule, fig. 286, 287. In 
some species of the same genus the seeds are in- 
cluded by twos in one membrane, and there are 
eight of these double seeds in one capsule, fig. 283, 
284. Different genera of Fungi, and among others 
the Lycoperdon, have numerous seeds, which com- 
pose their whole inner substance, fig. 7. Others, 
as the genus Peziza, have loose capsules. 
§ 113... 
According tothe explanation givenin § 97, the fruit 
is that part which is formed from the germen, whe- 
ther it change into naked seeds or into a pericarpium. 
The botanist can never form a proper judgment of 
any fruit till he is acquainted with the mode of its 
production. The calyx, the corolla, the nectarium, 
the receptacle, may after flowering envelope the ger- 
men, may grow with it, and thus form a particular 
sort of fruit that may have the appearance of a peri- 
carpium without being one. Such a production is 
H2 called 
