574 
Sp. Cb. 
P. foliis folitariis fubtetragonis acutiufculis diftichis, ramis 
infra nudis, conis cylindraceis. Hort. Kew. 
THIS tree fomewhat refembles the former in its general appear- 
ance 
the leaves are ihort, folitary, pointed, fomewhat quadrang 
and upon the older branches incline in oppofite directions : the c 
are almoft cylindrical, bent downwards, larger, and of a darker cc 
than the preceding fpecies. 
Ray and Hudfon mention this tree as a native of Scotland ; 
we are told in the Flora Scotica that the P. fylveflris is the only fp 
of pine that grows wild in that country. 
but 
s 
Upon 
an incifion being 
made into the bark of this tree, a clear 
tenacious fluid iffues, which concretes into a refinous fubftance, 
known by the name of rejina abietis. This, after being boiled in 
water, and {trained through a linen cloth, is called in the Pharmaco- 
poeias Pix burgnndica^ or Burgundy pitch. But if the boiling of the 
native refin is continued till the water is wholly evaporated, and 
wine vinegar is at this time added, a fubftance named Colophonium 
is formed. 
Burgundy pitch, which is chiefly imported from Saxony, is of a 
folid confiftence, yet fomewhat foft, of a reddifh brown colour, and 
not difagreeable in fmell. It is entirely confined to external ufe, and 
was formerly an ingredient in feveral ointments and plaflers. In 
inveterate coughs, affections of the lungs, and other internal com 
plaints, plafters 
of this 
frequently found of considerable fervice. 
refin, by acting as a topical ftimulus, are 
' 
PINUS PICEA. 
