﻿Disthictive Characters of Canadian Spruces. 175 



•of the plants which were planted on good, dry, heavy soil, 

 within fi'om two to three miles, and at half the altitude, 

 dwindled away after the first few years, till they entirely 

 perished. Tlie trees at Dunniore are, no doubt, growing at 

 a low altitude, but they are sheltered by a high-wooded 

 bank on the south, and are on a damp bottom. Mr. 

 Andrew Murray, a distinguished member of the Botanical 

 Society, and recogidzed authority on ConifercT, has ignored 

 the existence of rubra, but he has probably never seen it 

 growing, as, although long introduced, it is still scarce in 

 Britain." In illustration of these remarks, Mr. Gorrie 

 exhibited and presented to the Botanical Society branches 

 and cones of (1) F. rubra taken from a group of trees 

 growing on the railway banks, near Tynehead Station, in 

 Midlothian, at an altitude of about 800 feet. The trees 

 had then (13th January, 1870), been about fifteen years 

 planted, and were from 12 to 18 feet in height ; (2). 

 P. rubra, from a group of trees growing in drained and 

 improved ground, which must once have been marshy, in 

 Dunmore Park, near Stirling, Scotland, not 50 feet above 

 high-water mark, seemingly about the same age as the 

 last, and from 15 to 20 feet in height ; (3). P. alba, from 

 near Tynehead Station ; (4). P. nigra, from Dunmore Park. 



In addition to acknowledgments for specimens already 

 made in this paper, my best thanks are due to Mr. 

 John MacAloney, of Halifax, who collected for me the 

 several forms growing on the shores of the Bay of Fundy ; 

 to Mr. W. S. Calkin, B.A., now of Cornell University, who, 

 while an undergraduate of Dalhousie College, obtained 

 those of the district around Truro ; and to Mr. S. J^ 

 McLennan, B.A., who made similar collections around 

 Sydney Harbor, Cape Breton. 



