22 The Ottawa Naturalist. [April 



Divide (92, 94) ; Hunker Creek (38, 68 p.p., 83) ; Bonanza 

 Creek (90). 



i8. LOPHOZIA BINSTEADII, (Kaalaas). 



Jungermannia Binsteadii, Kaalaa-, Vid.-Selsk. bkrifter, 

 189s* : 9. 



Dawson (34 p- p-) ; Bonanza Creek (11, 12, 22, 35). 

 Orig^inally described from Norwegian specimens. Recently 

 recorded from Greenland. Determination confirmed by C. 

 Jensen. 



The species is close to L. gracilis {ScMe'ich.) Steph. but 

 is destitute of flagelliform branches bearing gemmas. The 

 walls of its leaf-cells also are much more thickened and show 

 very conspicuous trigones. Some doubt is thrown on the 

 validity of the species by C. Jensen,^ who suggests that it 

 may pass into s'ender forms of Z. Lyoni. 



19. LoPHOZiA iNCiSA, (Schrad.) Dumort. 



Klondike (Williams) ; Hunker Creek {^Z PP> 80 />/>.). 



20. Sphenolobus Kunzeanus, (Hi'iben.) Steph. 



Hunker Creek (74). 



21. Sphenolobus Michauxh, (Wt^b.) Steph. 



Hunker Creek (25, 53 />•/*•)• 



22. Sphenolobus saxicolus, (Schrad.) Steph. 



Klondike (Williams) ; Hunker Creek (54) ; Gold Bottom 

 Creek (78); Indian Divide (99). 



23. Sphenolobus minutus, (Crantz) Steph. 



Dawson (Williams) ; Hunker Creek (2b, 27, 40, 50) ; 

 Bonanza Creek (102); Indian Divide (100). 



24. Mylia anomala, (Hook.) S. F. Gray. 



Dawson (Williams); Hunker Creek (72); Bonanza Creek 

 ('3- >8. 36). 



25. Lophocolea minor, Nees. 



Bonanza Creek (88). 



1 Ofversigt Kong^l. Vetensk. Akad. Forh. 1900^ : 798, 



