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, 26170) ? 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. 



BRITTON, 23. BRITTON & BROWN i : 37. MAXON, List 645. 

 Glacier Bay (Coville & Kearney, 711). 



52. Equisetum fluviatile limosum Linnaeus. 



GILBERT, 8. 



. limosum Milde, Monogr. 351. 



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

 Shumagin Islands (Harrington in 1871-2) ; 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. 9: 62. 



MAXON, List 645. 

 Eqtdsetum 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, 

 14190, 1814). 



56. Equisetum pratense nanum Milde. 

 A. A. EATON, Fern Bull. 9 : 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- 



