mm 
PRICE FIVE CENTS. 
82.00 PER YEAR. 
VOL, XXXVIII. No. 44, 
WHOLE No. 1593. 
in the office of the Librarian of Congees at Washington. - Entered at the Post-Office at Now York City, N. Y., aa aecond-claaa matter.1 
[Entered according to Act of Congresa, in the year 1879, by the Rural PnbliBhlng Company, 
acute; lobes ovate, acute, wide. Some of the 
varieties of this species have blotched leaves. 
It is very distinct from the previous species 
and produces correspondingly distinct varl* 
eties. It has larger, different shaped leaves and 
a stronger and different habit of growth. 
A. Japonicum is a very beautiful species, the 
leaves are large, almost circular in shape, aud 
notched on the edge into 11 or IS sharp lobes. 
Multipartedly incised, opposite, serrate, on 
both sides downy, petioles short; the nerves 
at first hairy; branches and. branchlets round, 
purple and smooth; umbels many flow¬ 
ered; flowers sub-umbellate, purple; 
seeds winged and woolly. 
A. piclum has the leaves smooth, pal; 
mately seven-lobed; lobes acuminated, 
oblong, entire, alternate, aggregated to¬ 
gether at the ends of the branches, 
smooth on both sides, variegated with 
white; branches smooth, ash-colored. 
A. carpinifolium Is a rare species, the 
foliage of which is so unlike that of a 
Maple and so closely resembles that of 
the Hornbeam that none but the most ex¬ 
perienced botanists would recognize it as 
a Maple, except they saw the flowers and 
the fruit. I am not aware of there being 
any varieties of it. 
I do not thiuk that . 1 . crataegifoliurn has 
been introduced into this eouutry, but a 
very beautiful variety with deeply incised 
leaves has beeu. It is of upright growth 
with brownish-red bark and is quite dif¬ 
ferent in appearance from those derived 
from A. palmalum. 
These are all that have been introduced 
into this country, so far as 1 know. The 
other species named woutd no doubt be 
desirable additions to our lists of orna¬ 
mental trees. Many of them are closely 
allied to our American species, and can 
hardly be distinguished from them; for 
instance the Japanese A. spicalum differs 
from the Amerieau species of the same 
name, but not sufficiently so to warrant 
making itadistiuet species. A. cirvum- 
lobatum, A. argulum, and A. barbinerve 
are allied to A. glabra. A. capiUipes, A. 
rufinerves, and A, tegmentosum are related 
, to A. Fennsyloanicutn. 
Much difficulty has beeu experienced in 
i propagating the various varieties of Jap- 
» anese Maples. As a rule they are of 
delicate growth and require to be grafted 
^ on some good slock to insure a reason- 
* able strength of growth. They will take 
on some of the American species and 
will make a good growth for a year or 
two, when suddenly, sometimes within 
twenty-four hours, the whole plant will 
die. This could be overcome only by 
importing plants of the type species to be 
used as stocks. The type can be propa¬ 
gated by cuttings, but as some of the 
tjSS' trees originally imported are now begin¬ 
ning to produce seeds, stocks will be 
more readily obtained. The Japanese 
increase them all hy grafting, princi¬ 
pally by inarching. Aa the varieties gen¬ 
erally produce long, slender branches, 
they place a row of stocks—six, eight 
or more—close to the mother plant, and 
three or four inches apart; they then in- 
V arch a branch at as many different points 
as there are stocks to graft it on; an ey* 
or bud being left at each inarching. 
They graft in this way in order to obtain 
as many grafts as possible, and not to 
dwarf the pluuts, as is generally sup¬ 
posed. They also have a fashiou of train¬ 
ing up a stock with a clean stem five or 
six feet high, and then inarching a num¬ 
ber of varieties—sometimes a dozen—up¬ 
on it, on different sides, producing a very 
novel and beautiful effect. 
I crust that what I have written above 
will, in some measure, clear up the confu¬ 
sion which exists among horticulturist* 
JAPANESE MAPLES 
JAMES HOGG 
and A. nikoense .To these Dr. Maximo- 
wicz lias added A. tegmentosum; A. mon- 
omaxim and A. barbinerve. Many of those 
enumerated by Dr. Savatier were discov¬ 
ered by Dr. Maximowicz. 
Tlie most of the garden varieties which 
have been introduced into this country 
and'Europe are derived from A. pal¬ 
malum of Thuuberg. He gives as species 
A. seplemlobum and A. disseelum, but 
these are only varieties of this species. 
Dr. Siebold called it A. polymorphum on 
account of its great tendency to vary in 
its foliage. It will thus be seen that these 
names which are givcu in the nursery 
catalogues as distinct species, are only 
synonyms of A. pahnatum. Strange to say, 
although the species was Introduced iuto 
England as far back as 1830. none of the 
varieties was introduced until within the 
past few years. There is also a variety of 
A. platanoides , variously known in the 
European nurseries aB A. palmahtm, A. 
crispum and A. lacinialum, which has the 
