FERNS AND FERN ALLIES 389 



49. Equisetum arvense nemorosum (Bell) A. Braun. 



Farragut Bay (Coville & Kearney, 478 — peculiar in having the 

 branches recurved); Glacier Bay (Trelease, 2617a); Cook Inlet to 

 Tanana River (Glenn) . Not before reported as Alaskan. 



50. Equisetum arvense riparium (Fries) Milde. 



Yakutat (Saunders, 2632, 2633). Not before reported as Alaskan. 



5 1 . Equisetum fluviatile Linnaeus. 



Brixton, 23. — Brixton & Brown i : 37. — Maxon, List 645. 

 Glacier Bay (Coville & Kearney, 711). 



52. Equisetum fluviatile limosum Linnaeus. 



Gilbert, 8. 



E. limosum Milde, Monogr. 351. 



Sitka; Kukak Bay (Saunders, 2601); Kussilof (Evans, 610); 

 Shumagin Islands (Harrington in 187 1-2) ; Kuzitrin River near Port 

 Clarence (Walpole, 1661). 



53. Equisetum hyemale Linnaeus. 

 CooLEY, 246. 



Juneau (Coville & Kearney, 552). 



54. Equisetum palustre Linnaeus. 



Britton, 22. — Britton & Brown, i : 37.— A. A. Eaton, Fern Bull, g: 62. 



— Maxon, List 645. 

 Equisetum palustre nanum Gilbert, 9. 



Popof Island (Saunders, 2609) ; " Camp 29 " (Schrader) ; Rein- 

 deer Station, Port Clarence (Walpole, 1420, 1581, 1815). 



55. Equisetum pratense Ehrhart. 



Britton, 22. — Britton & Brown, x : 36. — A. A. Eaton, Fern Bull, g : 4, — 

 Eastwood, Bot. Gaz. 33: 129. — Maxon, List 645. 



Popof Island (Saunders, 2624) ; Gens de Large and Koyukuk Rivers 

 (Schrader in 1899) ; Reindeer Station, Port Clarence (Walpole, 

 1419a, 1814). 



56. Equisetum pratense nanum Milde. 

 A. A. Eaton, Fern Bull, g : 4. 



St. Paul Island, Bering Sea (Coville & Kearney, 1840). 



57. Equisetum scirpoides Michaux. 



Britton, 23. — Britton & Brown, i : 39. — J. M. Macoun, 575. — Maxon, 

 List 646. — Ostenfeld, 9. 



Bering Sea : St. George Island ; St. Paul Island ; Hall Island (Co- 



