SNOWDROP-TREE 



tion for the Advancement of Science decided, if possible, to 

 bring order out of the perplexing situation. Two rules were 

 established. One that every plant should hereafter be 

 known by the name under which it was first published to the 

 world, unless that had already been given to another plant ; 

 and the other that no later name should stand whether 

 the first did or did not. Now comes the result. The trop- 

 ical Halesia was found to be no genus at all but only a spe- 

 cies which was soon referred to its proper place. There 

 then remained but one Halesia. But here the second rule 

 came in, and so our pretty Silverbells lost their generic name. 

 It was then suggested that they should be named Mohroden- 

 dron in honor of Dr. Charles Mohr, an eminent botanist of 

 Alabama. The suggestion was accepted and so Stephen 

 Hales was deposed and Dr. Mohr reigns in his stead. 



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