PLATE XXIV. 



FIG. 



1. PLUMULARIA CRISTATA, p. 94, of the natural size, but re- 



presenting a specimen of peculiar habit. 



2. PLUMULARIA FRUTESCENS, p. 100, of the natural size. 



The specimen, which is a small one, was given to me by 

 Mr. Bean. 



3. A portion of the same magnified. 



