1870. ] 
DAHLIA IMPERIALIS. 
9 
in the month of May, and united them by herbaceous grafting, each to a tuber 
of one of the dwarfest liliputian dahlias. The plants thus formed have, during 
the past autumn, blossomed with him at a height of 8 ft. or 9 ft., forming a pyramid 
of perfect symmetry, with the large and much divided leaves spreading out on all 
