Complimentary 
NEW SERIES VOL. II 
NO. 16 
ARNOLD ARBORETUM 
HARVARD UNIVERSITY 
BULLETIN 
POPULAR INFORMATION 
JAMAICA PLAIN, MASS. OCTOBER 26. 1916 
Prostrate Junipers. This general name is given to a number of low- 
growing Junipers with wide-spreading branches lying close to the ground 
and forming broad mats. For covering banks, the margins of ponds 
or beds of larger conifers they are useful and are much used in some 
parts of the country, although there is still a great deal of confusion 
in commercial nurseries about the identity and correct names of these 
Junipers. 
The prostrate Red Cedar. This is perhaps the handsomest of all 
these plants. On exposed parts of the wind-swept cliffs near Ogun- 
quit and at Kennebunkport, Maine, this Juniper grows only about two 
feet high, with branches extending over a diameter of eighteen or 
twenty feet, their ends lying flat on the ground. At Kennebunkport, 
in a position not fully exposed to the wind, one of these plants has 
\ formed a short stem about two feet high from the summit of which 
start branches spreading horizontally and forming a broad head. 
Whether the dwarf habit of these Junipers is due to the exposed posi- 
tion where they grow or not cannot be determined until plants are 
raised from seeds produced by them, for it is possible such seedlings 
may assume the ordinary upright habit of this tree. The fact that 
such prostrate plants sometimes occur at a distance from the coast, 
as in Lexington, Massachusetts, indicates perhaps that the prostrate 
form has becoms fixed, as it is in the case of prostrate forms of some 
other Junipers. Dwarf forms of Juniperus virginiana are described 
in German books on trees under the name of Juniperus virginiana 
repens or J. virginiana horizontalis, but the Arboretum has no infor- 
mation about these plants and it is impossible to determine if they are 
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