G40 Maxon : Pteridophyta collected in Alaska 



collected at Great Bear Lake, is now known to extend from cen- 



tral New York and Vermont to New Brunswick, westward in 

 Canada to the Rocky Mountains, northward to Alaska and the 

 Arctic coast from the Mackenzie River to Baffin Bay. It is ap- 



■ 



parently rather uncommon in Europe, but has a wide range, oc- 

 curring in Siberia. The National Herbarium contains specimens 

 also from Arakamtchetchene Island, Bering Straits. 



EQUISETACEAE 



Equisetum arvense L. 



No. 1520. Common in the vicinity of Nome City, June 18. 

 This is forma boreale (Bong.). 



Equisetum sylvaticum L. 



No. 1524. In moist shady places among alders along the 

 border of the tundra, at a point 16 miles west of Nome City ; 

 August 5. 



Equisetum variegatum Schleich. 

 No. 1 52 1. Swamps, Unalaska, June 18. 



LYCOPODIACEAE 

 Lycopodium Selago L. 



No. 1 513. 



J 



13. No. 1527; in shady places near the tundra at Nome City, 

 July 22. No. 1526; on the tundra, Nome City, July 22. 



These plants represent a considerable diversity with respect to 

 habit and size, but are undoubtedly referable to the single species. 



Lycopodium annotinum L. 



No. 1 518. On the hills, Unalaska, June 19. No. 1528; in 

 shady places, vicinity of Nome City, July 22. Both numbers 

 represent the form usually known as var. pungens Spring. 



Lycopodium clavatum L. 

 No. 1522. Dutch Harbor, Unalaska; June 17 ; common. 



Lycopodium Sitchense Rupr. 



No. 1 5 14. Common on the hills enclosing the harbor, Unalaska, 

 June 13. No. 15 16 ; Unalaska, alt. 1-2000 ft., June 17. 



