is another arctic plant which is found isolated on the peaks of 

 the White Mountains of New Hampshire, and on Mount Marcy in 

 the north corner of New York. It has been gathered as far south 

 on the coast as the Labrador peninsula and the shore between 

 York Factory and Churchill River, and grows on the summits of 

 the Rocky Mountains on the 56th parallel, and throughout the 

 whole extent of the barren grounds from Repulse Bay to 

 Norton Sound, and northwards to the Arctic Sea. An infu- 

 sion of the leaves and flowering tops was drunk by us instead 

 of tea, but it makes a less grateful beverage than the Ledum 

 palustre. It is a Scandinavian plant. R. kamtschaticum is an 

 inhabitant of the north-west coast in lat. 53°, and of Una- 

 laschka, as well as of the Asiatic shore. R. albiflorum, an 

 elegant and ornamental plant, was discovered by Drummond on 

 the Rocky Mountains between 52° and 57° of north latitude, 

 where alone it has been found. 



Loiseleuria vel azalea procumbens inhabits the alps of New 

 Hampshire, and the coasts of Newfoundland, Labrador, Hudson's 

 Bay, and the Arctic Sea ; also the north-west coast at Mount Edge- 

 cumbe, Sitka, and Kotzebue Sound. Ledum palustre, narrow- 

 leaved Labrador tea, the Ka-ki-ki-pukiva, (perennial leaves), or 

 the maskego-pukiua (medicine leaves), of the Crees, is an in- 

 habitant of the colder parts of Canada, the coasts of Newfound- 

 land and Labrador, and the whole of Rupert's Land to the 

 Arctic Sea, on whose shores it grows from Repulse Bay and 

 the mouth of the Thlewee-choh to Kotzebue Sound. It is also 

 found at Sitka; but Dr. Asa Gray has seen no specimens gathered 

 south of the United States' boundary line. It is frequently 

 used as a substitute for tea. L. latifolium grows in the woody 

 districts of Rupert's Land, often in the immediate vicinity of 

 the other species ; but extends further south, being common in 

 cold boggy grounds in the Northern States. 



Monotrope^e. — Cladothamnus pyrolifolius ( Tolmiea, Hook.) 

 inhabits Norfolk Sound on the Pacific coast in lat. 57°, and the 

 country southwards to Puget Sound. Chimaphila umbellata, 

 Prince's pine, Pipsissewa, goes northward to 53° on the Rocky 

 Mountains, but does not pass the 50th parallel in the much 



