52 BOTANICAL GAZETTE [january 



about the altitude given by Fernald on wet cliffs in company with 

 S. herhacea. The main part of S. Peasei I saw was growing about 

 15-30 m. below S. herhacea on the southern slope of the ravine and 

 covered a rather large area. S. Uva-ursi is very common at a 

 somewhat higher level, but I collected plants of it which were grow- 

 ing just above the place where I saw S. herhacea and S. Peasei close 

 together. Some plants of S. Peasei looked much like vigorous 

 S. herhacea, while the main part of it lower down at first sight could 

 easily be taken for S. Uva-ursi. Fernald states that S. Peasei 

 "finds itself at home on the almost inaccessible wet cliffs," and 

 perhaps he did collect it somewhere else (but apparently not far 

 from where I found it), because this place is by no means "almost 

 inaccessible." Anyone who is a Kttle careful not to start a stone 

 avalanche and is not afraid of some steep cHmbing can easily visit 

 this locality. Unfortunately the weather became misty and pre- 

 vented my exploring the southwestern part of the ravine to a greater 

 extent. On the southeastern slopes (toward the Madison Huts) 

 I could not find a trace of either S. herhacea or S. Peasei, both 

 species seeming to inhabit a very limited area. Under the lens 

 the leaves, above as well as beneath, look as though very finely 

 punctate owing to the presence of stomata. They are not 

 "papillose," as the author says. These stomata are also present 

 in S. Uva-ursi, but usually hardly visible except under the 

 microscope. 



8. S. HERBACEA L., Sp. PL 2:1918. 1 753; Lange, Consp. Fl. 

 Groenl. 1:107. 1880; 2:278. 1887; Rydberg in Bull. N.Y. Bot. 

 Gard. 1:277. 1899; Robinson and Fernald, Gray's New Man. 

 325. fig. 65. 1908; Britton and Brown, 111. Fl. ed. 2. i :6oi. fig. 1478. 

 1 91 3.— It has almost exactly the same range as S. Uva-ursi; it does 

 not occur, however, in New York and Vermont, and I have not seen 

 specimens from Newfoundland. On the other hand, it is met with 

 on the western shores of Hudson Bay and in western as well as 

 eastern Greenland. It is entirely absent from western North 

 America, but in Europe and Asia its range is even more extensive 

 than that of S. reticulata. Pursh (Fl. Am. Sept. 2:617. 1814) 

 cites a specimen of D. Nelson from "the northwest coast" which I 

 cannot identify. 



