Occurrence of Pinus pungens Lamb. 
on the Atlantic Coastal Plain 
ARTHUR PIERSON KELLEY 
Scattered trees of Table Mountain pine (Pinus pungens 
Lamb.) grow on the low sandy scarps of Beaver Dam Branch in 
Prince George’s County, Maryland, southeast of Ardwick sta- 
tion on the Pennsylvania Railroad and not far from Washington, 
D. C. They are apparently native in an extensive pine-oak for- 
est of the sort which is natural to the coastal plain. The trees 
are seldom over 0.3 meters in diameter at breast height and 
grow to 15 meters in height; the lower branches are dead and the 
bark is scorched by fire. 
While the tree resembles scrub pine (Pinus virginiana Mill.) 
with which it is associated, its stiff, sharp-pointed needles serve 
to distinguish an immature tree, while the large persistent cones 
with heavy apophysis, prominent umbo, and stout spine which 
is divergent or recurved, immediately betray the mature Pinus 
pungens. 
Table Mountain pine may prove not uncommon on the 
Atlantic coastal plain. Its presence in the neighborhood of Bal- 
timore was reported to the writer early in the year by Dr. Alex- 
ander F. Skutch, of the Johns Hopkins University. It was evi- 
dently found on the Virginia coastal plain, for Holm! records its 
discovery by William Hunter on Johnny Moore Creek, near 
Woodlawn, Virginia, in the eighties of last century. 
The species is usually considered to be found natively only 
from the mountainous portions of New Jersey and Pennsylvania 
to Georgia and Tennessee, although it is reported from the Falls 
of Potomac in the Piedmont by Ward;? the Falls are, of course, 
not many miles distant from Ardwick. In its home, the tree 0c- 
vfs On sandy soil, as may be observed, e.g. at Mont Alto, 
Pennsylvania, on a sandstone ridge upon which Pinus rigida 
also flourishes. 
MALVERN, PENNSYLVANIA 
P : Holm, Theodore, Third list of additions to the flora of Washington, D. me 
roc. Biol. Soc. Wash. 7: 130, 1892. 
* Ward, Lester F. Guide 
U.S. Nat. Museum 22: p. 137 
, 
to the flora of Washington and Vicinity. Bull. 
8 
