362 GEOLOGICAL SURVEY OF CANADA. ^ 



565. PINUS. 



(2075.) P. albicaulis, Kngelm. ; Macoun, Cat. III., 465. 



Generally abundant in southern interior of British Columbia, be- 

 tween heights of 5000-6000 feet ; Toad Mountain and vicinity to 7000 

 feet. (Dawson.) 



(,2077.) P. ponderosa, Dougl., var. scopulorum, Engelm. ; 

 Macoun, Cat. HI., 466. 



F'rom near the head of Lower Arrow Lake, southward, and all along 

 Kootanie Lake, B.C. (Dawson.) 



566. PICEA. * 



(2082.) P. nigra, Link. ; Macoun, Cat. III., 468. 



Since Ihi^ j)iiblication of Part III., we have made extensive collections 

 in Piince Edward Island, and having observed the .'*o-calied species, 

 P. nigra and P. rubra, growing together, we are satisfied that they 

 arc distinct enough to be sejiaiated as a species and variety. In Gray, 

 Man., ed. VI., 402, P. rubra is admitted as a variety, and wc now 

 write it as : — 



Var. rubra, Engcl.; Gardn. Chron. (N.S.), XI., 1879. 



Differs I'ldiii (he. -species in having darker and larger leaves; larger, 

 bright red-brown cones, which arc more i-eadily deciduous after 

 maturity. (I-Jngclm.) It is more than probable that in (he far North- 

 west we have a species or variety that is also distinct from the typical 

 eastoni P. nigra. This Ibi-m has lai'ge ovoid cones, which are deep 

 purple, and without the brownish lint of those from the cast. 



567. TSUCA. 



(^20S,s.) T. Pattoniana, Engelm; Macoun, Cat. III., 472. 



On the higher slopes of the mountains at the Glacier Hotel, Selkirk 

 Summit; also on the .summit of Mount ]5enson (alt. 3000 feet), Mount 

 Mark (alt. 3300 feet), and Mount Arrowsmith (alt. 5500 feet), Van- 

 couver Island. 1887. (Macoun.) In valleys of the Coast Range at 

 head of Chilkoot Inlet (Lat. 50° 30'), and on the Chilkoot Pass to 



