Howe: American Species of Alectoria 



145 



but this would be an isolated, unusual, and it would seem doubt- 

 ful locality. On the Pacific coast it has been recorded from Ore- 

 gon (Tuckerman) to Alaska (Cummings, Macoun). Other 

 Pacific coast records are Washington (Tuckerman) , British Co- 

 lumbia (Macoun) and Sitka (Rothcock) . In addition to these 

 localities I have examined specimens from New Brunswick, 

 Miquelon island in the east ; from Mexico, Mt. Oaxaca, Mt. 

 Orizaba, northern California, Idaho, Montana, Saskatchewan, 

 Alberta and Yukon in the west. 



Observations : Either Acharius' sarmentosa or HofTmann's 

 dichotoma are applicable to this plant, as both names were given 

 to it in the year 1795. As sarmentosa has long stood, it seems, 

 however, advisable as a nomina conservanda to always consider 

 dichotoma a synonym. An examination of the original descrip- 

 tions and figures will show that Acharius evidently had in his 

 possession a more sulciform specimen than Hoffmann. Wainio 

 in his report on the HofTmann herbarium called the German 

 plant = to Acharius' sarmentosa. The rigidity of the thallus is 

 not a particularly good character for separation from the fore- 

 going variety, nor are the branches terete in one and in the other 

 compressed. The subboreal, pendulous, tree growing species, 

 either stramineous, virescent or occasionally blackened does not 

 intergrade into the boreal, prostrate, cavernous, earth growing, 

 always virescent variety of the former species. 



Note: Alectoria crinalis Ach. Lich. Univ. 594. 1810. This 

 form has been recorded from Labrador and Newfoundland by 

 Arnold (Lich. Fragm. 1. c. 1 894-1 896). This seems to repre- 

 sent a tangled, filiform phase of the above species. It was de- 

 scribed as follows : " thallo subcompresso ramosissimo cineras- 

 cente f ragilissimo, lorulis filiformibus superne teretiusculis ; apo- 

 theciis? convexis fuscis." Suecia. 



Specimens Examined 

 Maine: Blanchard, F. S. Blake, Jan., 1909 (1122, 1112 H) ; 

 New Brunswick: Grand Manan, H. Willey, 1879 (NH). Nova 

 Scotia: Port Mulgrave, Barclay (TH) ; Baddeck, Macoun, July 

 28, 1898 (CGS). Anticosti: Salt Lake, Macoun, Aug. 10, 



