each stem or branch of the plant which produced it; so exactly, in 
most cases, are they found to tally, Nor is this all; for where a num-. 
ber of flowers are crowded together, it can be proved that each flower 
consists of the extreme leaves, brought into close approximation, of 
the termination of a branch, and each branch so placed that the 
entire bunch of flowers is subject to the same laws of arrangement as 
if they had been remote from each other, arranged on an elongated, 
instead of a contracted axis. What is termed by botanists inflores- 
cence, is only the arrangement of the coloured leaves, called flowers, 
which do not deviate in their order, position, or succession, from those 
of the other branches or the common green leaves on the stem. This, 
when carefully looked for, may be clearly seen in the leaves of the 
horse-chesnut (Asculus hippocastanum), and in each little cluster of 
flowers, which form the whole bunch, which are always seven to each 
group; and the particular or individual flowers have seven stamens, all 
of which is shadowed forth in the seven divisions of the leaves of that tree. 
Again, if the tall and handsome spike of flowers of the Lupinus poly- 
phyllus be examined, a spiral of the most perfect kind will be discovered 
in which the sixth flower in the order of ascent will be found placed 
perpendicular above the first of the series; thus, five form the spiral. , 
Each of the numerous flowers will also be found to possess a calyx of 
five leaves, a corolla of like number, with ten stamens. The more 
closely it is investigated, the more fully will it be found to confirm the 
opinion ‘of Grew, that “the arithmetic of nature always accords with 
its geometry.’ ’ 
INTRODUCTION; WHERE Grown; Cutture. It appears to have 
been introduced to this country, from North America, about the year 
1759. Our drawing was made from a plant belonging to the Messrs. 
Pope of Handsworth. It succeeds best in a bed of peat, in a moist 
shady situation; producing its flower in April or May, at the summit 
of the stem, which is about half a foot in height. Contrary to the 
treatment which is required by many exotics, it is desirable that this 
species of Trillium should continue undisturbed for several years, 
when it will form a large plant, and produce abundance of flowers 
DERIVATION OF THE NAME 
Tritium, from TpduZ, trix, from the ee aren calyx. RHOMBOIDEUM, 
from the rhomboidal shape of the leave 
Y¥ME 
TRILLIUM RHOMBOIDEUM. Micha — Boreali Americana, v. 1, p. 215. 
Sprengel: Species Plantaru 
Tr dare ERECTUM, Linneus: ieee Hee as Edit. 2nd, v. 1, p. 484. 
