188 Rhodora [Auocst 



varieties of this species are often misinterpreted, with the result that 

 much of typical L. obscurum is passing as var. dendroideum. The 



two varieties may ordinarily he distinguished as follows: 



Branches spreading or recurving, flattened or concave be- 

 neatli: the linear-lanceolate leaves about 1 mm. broad; the 

 lower (and often the upper) series usually apprcsscd; the 

 lateral spreading: spikes 1.5-4 cm. long, 4-0 nun. thick. 



L. obscurum (typical). 

 Branches erect and crowded, not obviously flattened: the 

 linear-attenuate leaves decidedly less than 1 mm. broad, all 

 tncurved-ascending: spikes 2-5 cm. long, 3.5-4.6 mm. thick. 



Var. dendroidewn . 



L. OBSCURUM L. The typical form of the plant is common in 

 Nova Scotia. 



* L. obscurum, var. dendroideum (Michx.) 1). C. Eaton. Fre- 

 quent in dry open woods and pastures or clearings, Yarmouth Co. 

 to Lunenburg Co. 



* L. complanatum L. Decidedly rare as compared with the 

 common var. elabelliforme Fernald. Seen only in Cape Breton 

 Co.: spruce woods on hill across the river from the quarry, George 

 River. 



L. TRISTACHYUli Pursh. Dry barrens, sandy woods and gravelly 

 embankments, apparently frequent throughout. See p. 130. 



Ihoetek TUCKERMANI A. Br. The abundant species everywhere 

 in the margins of ponds in the silicious regions of the province. In 

 argillaceous regions passing to the stouter but otherwise hardly dis- 

 tinguishable vara, borealu A. A. Eaton and Harveyi (A. A. Eaton) 

 Clute. 



Pinus Banksiana Lamb. According to Fernow (Forest Cond. 

 N. S. 11) "Jack Pine {Pinus divaricata) is found only in special 

 localities on poorest sites in Colchester county." In Cumberland 

 Co. it is seen from the train to be abundant, mixed with P. resinosa, 

 on the hills between Thomson and Atkinson Siding, and in less 

 abundance about Springhill Junction; both regions composed of 

 sterile Carboniferous sandstone. See p. I'M). The conservatism of 

 Fernow's statement is further indicated by Fowler's reference to this 

 as "The most common species of pine" in the region of Canso. — 

 Fowler, Ann. Rep. Dept. Mar. and Fish., xxxix. 59 (1907). 



•Abies halsamea (L.) Mill., var. piianerouepis Fernald, Rno- 

 DORA, xi. 203 (1909). With the typical form of the species, boggy 

 barrens west of Goose Lake, Argyle. 



Thuja occidentals L. To the rather few stations for White 

 Cedar in Nova Scotia should be added Cedar Lake, Digby and Yar- 

 mouth Cos. (near Port Maitland). Jt is doubtless also at Cedar 

 Lake, east of Corberrie. See pp. 100, 102. 



JuNIPERUS COMMUNIS L., var. depressa Pursh. In Nova Scotia, 



