RELATIVES OF THE HERB ROBERT 145 
Irish, and he is usually to be found in the morning 
not far from the mangled remains of his victims. 
I have not yet raised all our species from seed, but I 
know the seedlings of most of them, and in all these 
the cotyledons are kidney shaped and so much alike 
that it would be difficult, though perhaps not always 
impossible, to determine the species before the 
appearance of any of the foliage leaves: the differences, 
however, are too minute and technical to be dis- 
cussed in these pages, and I purposely leave my 
readers plenty of opportunity for improving and adding 
to their contents. 
