i8ro. ] 
APIAXTUM WILLIAMSII. 
1 05 
out the year. It is really an acquisition, the 
habit being a copy of that of T. aurea. 
Mr. Jackman has recently introduced another 
variety, of a similarly dense habit, which he calls 
Thuja orientalis densa glauca. The habit is 
dwarf and compact, the outline conical, the 
growth consisting of numerous slender, closely 
compacted branchlets of a pretty glaucous tint. 
It will be a useful plant for introducing along 
with either of the preceding.—T. Mooee. 
ADIANTUM 
f mS handsome greenhouse evergreen 
Fern has somewhat the aspect of A. 
chilense. It is, however, quite different. 
The straight base and equal-sided wavy pinnse 
are peculiar. The growth of the plant is free 
and vigorous. It has a castaneous stipes from 
six to eight inches long, and golden at the base. 
The rachis is somewhat zigzag, and about a foot 
long. The fronds are tripinnate, triangular in 
outline, membranaceous, bright green, glabrous, 
the lower pinnee stalked, about 4 in. long, 
and of an ovate figure. The pinnules are about 
half-an-inch broad, and attached by pedicels 
about one-fourth of an inch long, so that the 
parts are nowhere crowded ; they are mostly 
WILLIAMSir. 
semicircular, he., with a straight base, and 
equally developed on each side of the pedicel. 
occasionally .slightly lunate ; towards the apex 
of the fronds and pinna3 subtrapeziform, and 
at the apex of both slightly tapered at the 
