1903] Yukon Hepatic^. 



21 



The perianth of Z. Kaiirini is clavate in shape and meas- 

 ures 3 mm. in length and 1.4 mm. in diameter. It is terete 

 except when very young, and is abruptly contracted into a 

 short and broad beak with a setuiose mouth, the setulae con- 

 sisting of single, projecting, thin-walled cells. The character 

 ot the perianth shows that the species is related to L. Muelleri 

 and its allies. 



11. LoPHOZiA HETEROCOLPA, (Thed.) M. A. Howe. 



Dawson (2, 6); West Dawson (8); Hunker Creek {2<) p.p., 

 i\^p.p., 48, 59, 67, 79, ^o p.p.). Also collected by Williams at 

 Dawson. Nos. 29, 79 and 80 are a little doubitul and show 

 an approach to L M74e/leri(Nees) Dumort. They are referred 

 to L. heterocolpa because they are gemmiparous, and the 

 writer would include under the same species the gemmi- 

 parous specimens referred by Howe to Geocalyx graveoiens. 



12. LoPHOziA vENTRicosA, (Dicks.) Dumort. 



Dawson ["^^ p.p.) \ West Dawson {7) ; Indian Divide 

 {93, loi) ; Hunker Creek (41, 55, 75 pp.) ; Bonanza Creek 

 (86 p.p.). 



13. LoPHOZiA Wenzelii, (Nees) Steph. Bull, de I'Herb. Boissier, 



II. 2 : 35. 1902. 



Jungemnannia Wenzelii, Nees, Naturg. der europ. Leberm. 

 2 : 58. 1836. 



Hunker Creek [82 p.p.). The species is widely distri- 

 buted in northern Kurope and in Siberia. It is also known 

 from Greenlmd, but has not before been reported from the 

 American mainland. 



14. LoPHoziA iNFLATA, (Huds.) M. A. Howe. 



Hunker Creek (70). 



15. LoPHOZiA Floerkii, (Web. & Mohr) SchiflFn. 



Hunker Creek (76, 81). 



16 LoPHOZiA BARBATA, (Schreb. ) Dumort. 



Klondike River bottom (Williams). 

 17. LoPHOZiA Lyoni, (Tayl.) Steph. 



Klondike (Williams) ; West Dawson (84) ; Indian 



