﻿North American Eurhyxchia 243 



sheathing bases, very abruptly narrowed to filiform erect-spread- 

 ing acumination, the inner with a long thin costa, serrulate or entire. 

 Sporophyte I 5—20 mm. high ; seta red-brown, smooth, twisted to 

 the right ; capsule brown, oblong, unsymmetric, horizontal ; urn 

 2.5 x 1 mm., little constricted below the mouth when dry and 

 empty ; operculum conic, abruptly long-rostrate, beak two-thirds 

 length of urn ; annulus present, of at least two rows of cells ; cilia 

 stout, 2 or 3, nodose to subappendiculate ; spores minutely 

 roughened, 10-13 u y maturing in winter. 



Type locality, on old logs, Lake Pend d'Oreille, Idaho, Lei- 

 berg. 



On the ground, roots of trees and decaying logs. Northern 

 United States and Canada, in the Rocky Mountain region. Alaska, 

 O. S. Bates ; British Columbia, Macoun ; Idaho, Sandberg, and 

 Leiberg ; Montana, Watson ; Colorado, Wolf and Rothrock. 



Exsiccatl Ren. & Card. Muse. Am. Sept Exsic. 116. 



Macoun 



Herbarium as E. sub- 



strigosiun Kindb., is not the species, but appears to be E. strigo- 



sutn robustitm. Authentic material of E. substrigosutn has been 

 examined. 



Distinguished from E. strigosiun robustitm by the more diffuse 

 straggling habit, more distant leaves, branch leaves broad and 

 rounded at apex, and less acute stem leaves ; from E. strigosiun 

 audits other varieties, and the other closely allied species it is 

 easily distinguished by its greater size and looser habit. 



3a. Eurhynchium fallax Barnesii (Ren. & Card.). 



Eurhynchium strigosiun var. Barnesii Ren. & Card. Bot. Gaz. 

 14: 98. 1889. 



Stouter, with more slender, Ungulate leaves which are 'also 

 narrower at apex ; capsule much larger and thicker. 



Type locality the same as for the species. 



Collected several times in Idaho by Sandberg and by Leiberg. 



4- Eurhynchium diversifouum (Schleich.) Br. & Sch. Bry. Eur. 



fasc. 57-61, pi. j 20. 1854. 



Hypnum diversjfolium Schleich. in Herb, and Catal. 1S07. 

 (In part.) Teste Limpricht. 



