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PARK AND CEMETERY 
Garden Plants— TKeir Geography.— EXXX. 
Populus “poplar” has eighteen species and quite a 
number of varieties. The variation of their aspect is 
striking and considerable — fastigiate, round headed, 
spiry, loose and drooping but inelegant. Landscapers 
and nurserymen may prate as they please, but certain 
of these poplars such as deltoidea for instance are 
about the cheapest, most rapid, most easily managed 
citv avenue trees available for the North. What if 
they are short lived? It is far better to replant them 
than endure the misery of the old gas-eaten, horse- 
bitten, tree — butchered examples of maple avenues al- 
most everywhere in evidence. A cottonwood poplar 
may be trimmed back with some assurance that it will 
grow out again regularly. But it rarely needs trim- 
ming. 
The Aspens are rapid in growth, too, but less de- 
sirable for avenues, as a rule, than the other section. 
Their silvered, trembling leaves are often a desirable 
feature in parks, and where there is abundant space 
their suckering habit may often be made advantageous 
use of — about old gravel pits for instance, which may 
often be prettily embellished by such growths, and 
SALIX ALBA, 9 YEARS OLD. DOMINION FARM, 
BRANTFORD, MAN. 
much more cheaply than by fussing and planning and 
backing and filling. The suckering growths should 
frequently be cut back, when the foliage will be finer 
and beautifully silvered. At Kew they catalogue about 
twentv-four species and a number of varieties of pop- 
lars. 
POPULUS NIGRA PYRAMIDALIS. 
Lacistemeae is a tropical American tribe of one 
genus and sixteen species. They are amentaceous 
small trees or shrubs scarcely at all known in gardens. 
So with the little “crowberry” tribe, the species are 
but rarely seen in cultivation. Empetrum nigrum has 
occasionally been used as an edging in Highland gar- 
dens after the manner of box or heather. As for the 
“hornworts” gardeners take no account of them, but 
they have greatly interested botanists. They are vari- 
able aquatics of lowly organization. 
James MacPherson. 
SEASONABLE SUGGESTIONS. 
The common red cedar is one widely distributed, 
growing over almost the whole United States from 
the Atlantic to the Pacific. It changes character ac- 
cording to soil and location. The silver cedar of Col- 
orado and New Mexico is a form of it, said to be of 
e.xceeding beauty. 
Thuya gigantea, of the Pacific coast, seems not suf- 
ficiently hardy, for general planting. Occasionally, 
but not generally, it survives in the vicinity of Phil- 
adelphia. It’s a pity it won’t do, for a more lovely 
green it is hard to find. 
