The cryptogamous Flora. 161 



Lichens. 



Cetraria artica, Hook. Taku, June. Represented by young and mature 

 conditions. 



Cetraria islandica, (L.) Ach. Taku, June. Sterile. 



Cetraria cuciiUata, (Bell) Ach. Taku, June. Sterile. 



Cetraria nivalis, (L.) Ach. Taku, June. ^Sterile ; represented by a slender, 

 light colored form. 



Cetraria lacunosa, Ach. Prince William sound, September. Sterile. 



Cetraria glauca, (L.) Ach. Prince William sound, September. Sterile. 



Cetraria glauca, (L.) Ach., b stenophylla, Tuck. Prince William sound, Sep- 

 tember. Sterile. 



Aledoria ochroleuca, (Ehrh.) Nyl., a rigida. Taku, June. Sterile. 



Alectoria ochroleuca, (Ehrh.) Nyl., c sarmentosa, Nyl. Prince William sound, 

 September. Sterile. 



Nephroma articum, (L.) Fr. Taku, June. Sterile ; growing on Dicranum. 



Peltigera aphthosa, (L.) HofFm. Taku, June. Sterile. 



Peltigera horizontal-is, (L.) Hoffm. Prince William sound, September. 



Peltigera canina? (L.) HofFm. Taku, June. 



Lecanorafrustxdosa? (Dicks.). Taku, June. Mass. 



Cladonia alcicornis, (Lightf.) Floerk. Taku, June. 



Cladonia fimbriata, (L.) Fr. Prince William sound, September. Sterile. 



Cladonia fimhriata, (L.) Fr., b tubasformis, Fr. Prince William sound, Sep- 

 tember. 



Cladonia cornucopioides, (L.) Fr. Taku, June. 



Cladonia bellidiflora, (Ach.) Schaer. Prince William sound, September. 



Cladonia deformis, (L.) HofFm. Taku, June. Sterile. 



Thamnolia verrnicidaris, (Sw.) Schaer. Taku, June. Sterile. 



Bseomyces eeruginosus, Scop. D. C. Prince William sound, September. (Jn 

 wood. 



Buellia parasema, (Ach.) Th. Fr. Prince William sound, September. On 

 dead wood. 



Sphearophorus globiferus, (L.) D. C. Prince William sound, September. On 

 earth. 



In examining the geographic distribution of the species represented in 

 this list it is interesting to note that the only Lycopodium is a common 

 and widely distributed species. 



Of the mosses, three are from the upper Taku basin, a locality inside 

 the Coast range, while eleven are from Prince William sound, on the 

 coast. Four of the fourteen species are confined to the western coast. 

 These were all found at Prince William sound. Only one species is alpine 

 or subalpine. 



Of the Hepaticse, one has not before been repoited from this country, 

 while one is probably an undescribed species. 



Eleven lichens are arctic or alpine, while several others reach their best 

 development in mountainous regions. Of the arctic and alpine forms. 



