CLUSTER-CUPS. 21 



the peridium is imbedded witliin tlie substance 

 of the succulent leaves. The only species we 

 possess is found rarely upon the common house- 

 leek. 



We have derived much pleasure in viewing the 

 astonishment and delight exhibited by friends to 

 whom we have personally communicated specimens 

 of the little fungi we have enumerated for examina- 

 tion under the microscope ; and we recommend 

 with confidence this group of parasitic plants, 

 unfortunately so little known, as well worthy of the 

 attention of all who are interested in the minute 

 aspects of nature, and who can recognize the 

 hand — 



" That sets a sun amidst the firmament. 

 Or muuLis a dew-diop, and light:s up its gera." 



Note.—YoT details of the supposed relationship of species of 

 Rcestelia to species of Podisoma, we must refer to a paper 

 published in the Journal of the Quekett Microscopical Club 

 for 1871 ; and for other instances of " Polymorphism," to an 

 article in the "Popular Science Eeview" for January, 1871. 



