BOTANY OF LAKE HUEON. 475 



teristic ; whilst north of this line the Tamarack (Larix Americana) 

 holds almost universal sway. In all cases we meet with a profusion 

 of ericaceous shrubs, belts and clumps of evergreens, and a mossy 

 carpeting, knee-deep with the sphagnous species S. cyynhifolium and 

 S. acutifoUum. Here also are found in frequent abundance the fol- 

 lowing mosses, all apparently of high western and northern range : 



Hypmim cordifolium. Dicranum Schraderi. 



H. gigantetim. D. iindulatum. 



H. imcinatum. D. Drulnmondii. 



H. nitens. Milium affine. 



H. Blanduvii. Bryum biimm. 



H. tamaricinum. Fissidens adiantoides. 



Intimately associated with the latter, but less abundantly distri- 

 buted, occur the sedges, Garex teretiuscula, C. stricta, G. irrigua, 

 G. vaginata, G. riparia, G. utricidata, G. filiformis, G. Jlava, G. 

 gynocrates, G. tenella, C, canescens, G. t/risperma, G. flexilis, and G. 

 infumescens. The usual monotonous appearance of this meadow 

 herbage is to some extent modified by the growth of the grasses 

 Muhlenbergia glomerata, Phragmites communis, G alamogrostis Gana- 

 densis, Phalaris arundinacea, Glyceria elongata, and G. Nervata; 

 whilst the minor flora is marked by the luxuriant orchidaceous 

 growth of Platanthera dilatata, P. hyperhorea, P. oUusata, P. orbi- 

 cidata, Gypripiedium puhescens, G. spectabile, G. arietinum, G. acaule, 

 Calypso borealis, and Galop)ogon pidchellus. The district comprised 

 between Cabot's Head, the most northern projection of the County 

 of Bruce, and a line drawn from Owen Sound to Chiefs Point on 

 Lake Huron, will be found to include the majority of the more truly 

 boi-eal forms of the eastern shore of Lake Huron. This area is, 

 botanically considered, almost distinct enough to admit of a separate 

 consideration, but owing to the present immature stage of our know- 

 ledge regarding its more inland vegetation, such a limitation in the 

 present instance would be altogether unadvisable. The followino- list 

 may be considered as containing the more characteristic boreal forms, 

 found within our area : 



Thalictrum dioicum. Lobelia Kalmii. 



Colitis trifolia. Campanula rotundifolia. 



Drosera rotundifolia. Vaccinium oxycoccus. 

 D. longifolia. . Kalmia glauca. 



D. linearis. Ledum palustre. 



Parnassia palustris. Pyrola rotundifolia. 

 6 



