132 



Mycologia 



(Cummings) , in which area it is rare. In the middle west it is 

 found commonly from Wyoming, South Dakota, and Minnesota 

 {Fink) northward. It is also found in the boreal swamps of the 

 upper Austral zone. 



Observations : Though this plant has been accepted recently 

 as a full species intergrades are so common that it seems inad- 

 visable to consider implexa other than a variety, particularly as 

 it appears to be nothing more than a less rank, slender condition 

 of jubata, which inhabits the regions of moderate rainfall and 

 moisture. The branches in the typical examples of the variety 

 are terete and uniformly slender, even from the proximal por- 

 tions nearly to the apices. There is little suggestion of the 

 coarse, remotely branched proximal portions changing almost 

 abruptly into the capillaceous, tufted extremities so character- 

 istic of true jubata and fremontii, and even orcgana. No great 

 difficulty presents itself in the separation of the variety from the 

 species, especially for North American workers, as the rank, 

 robust, typical jubata is replaced in our area by the following 

 species for which in the majority of cases we have marked diag- 

 nostic characters. The eastern examples which are those most 

 often fruited and esoraliate have been designated by Mr. Merrill 

 (Bryologist 14: 36. 191 1) as forma minuscula, but this is a name 

 given to a condition of growth, and not in my opinion worth 

 especial nomenclatural recognition. Moreover the plant originally 

 described was esoraliate. 



Specimens Examined 



Labrador: Indian harbor, A. C. Waghorne, Sept. 7, 1891 

 (ANS); Blanc Sablon, A. C. Waghorne, July 21, 1893 (NH, 

 CGS) ; Anticosti: Gunn river, Macoun, July 29, 1883 (CGS). 

 Newfoundland: New harbor, A. C. Waghorne, 1890 (ANS); 

 Exploits bay, A. C. Waghorne, (CEC) ; White bay, A. C. Wag- 

 horne, May 11, 1 89 1 (CEC) ; (S) ; Notre Dame bay, A. C. Wag- 

 horne, 1893 (CGS). Nova Scotia: Halifax, /. W. Eckfeldt, 

 Aug. 4, 1890 (ANS) ; Truro, Macoun, June 12, 1883 (CGS) ; 

 Cape Breton island, Macoun, July 9, 1898 (CGS). New Bruns- 

 wick : Cain river, A. Fernald, Oct., 1899 (1794 H) ; Grand 



