536 MINNESOTA BOTANICAL STUDIES. 



Bogs and wet woods. Aitkin county; lake Itasca. July, Au- 

 gust. Nos. 831, 1194, 1225. 



Achroauthes nionophy 11a (L.) Greene. Pitton. 2:183. 1891. 

 Woods. Aitkin county. August. No. 830. 



Achroanthes unifolia (Michx.). Raf. Med. Repos. (II.) 5: 

 352. 1808. 

 Sandy pine barrens. Centerville; Hubbard county. July. 

 Nos. 703, 1250. 



Leptorchis loeselii (L.) MacM. Met. Minn. Vail. 173. 1892. 

 Bogs. Minneapolis. September (fruit). No. 1008. 



Calypso bulbosa (L.) Oakes. Cat. Verm. PI. 28. 1842. 



Deep ravines, and cold damp woods. Thompson; Two Har- 

 bors. May, July (fruit). Nos. 93, 414, 535. 



Corallorrhiza corallorhiza (L.) Karst. Deutsch. Fl. 2148. 

 1880-83. 

 Moist woods and bogs. Thompson; lake Itasca. May, June. 

 Nos. 94, 1053. 



Limodorum tuberosum L. Sp. PI. 950. 1753. 



Bogs and swamps. Minneapolis; Centerville; lake Itasca. 

 June, July (fruit). Nos. 318, 707, 1188. 



MYRICACEAE. 



Comptonia peregrina (L.) Coulter. Mem. Torr. Bot. Club. 5: 

 127. 1893-4. 



Sandy woods. N. P. Junction; Grand Rapids. June, August 

 (fruit). Nos. 159, 730. 

 Myrica gale L. Sp. PI. 1024, 1753. 



Cold wet woods. Head of St. Louis River; Two Harbors. 

 May, July (fruit). Nos. 105, 530. 



SALICACEAE. 



Salix lucida Muhl. Neue. Sch. Ges. Nat. Fr. Berl. 4:239. 

 t. 6. f. 7. 1803. 



Low ground. Thompson. May, June (leaves). Nos. 61, 

 151. 

 Salix myrtilloides L. Sp. PI. 1019. 1753. 



Bogs. Partridge river. July. No. 521. 

 Populus grandidentata Michx. Fl. Bor. Am. 2. 243. 1803. 



Very common. N. P. Junction. May. No. 4. 



