534 MINNESOTA BOTANICAL STUDIES. 



Trillium cernuuni L. Sp. PL 339. 1753. 



Rich low woods. Fort Snelling; Thompson. May. Nos. 

 46, 79. 



Trillium erectum L. Sp. PI. 340. 1753. 



Copses and woods. Crow Wing county; lake Itasca. July, 

 August (fruit). Nos. 1001, 1167. 



Trillium grandiflorum (Michx.) Salisb. Par. Lond. 1 : t L 

 1805. 

 Rich woods. Thompson. May. No. 80. 



AMARYLLIDACEAE. 



Hypoxis hirsuta (L. ) Cov. Mem. Torr. Bot. Club. 5:118. 

 1893-4. 

 Sterile hills. Minneapolis. June. No. 256. 



DIOSCOREACEAE. 



Dioscorea villosa L. Sp. PI. 1033, 1753. 

 Copses. Cannon Palls. July. No. 364. 



IRIDACEAE. 



Iris versicolor L Sp. PI. 39. 1753. 



Edge of lakes. Pokegama lake; Chisago City; lake Itasca. 

 June, July (fruit). Nos. 208, 680, 1153. 



Sisyriuchium berniudiana L. Sp. PI. 954. 1753. 

 Dry, sandy soil. Minneapolis. June. No. 308. 



ORCHID ACE AE. 



Cypripedium acaule Ait. Hort. Kew. 3:303. 1789. 

 Swamps. Lake Itasca. July. No. 1143. 



Cypripedium parviflorum Salisb. Linn. Trans. 1:77. 179L 

 Bogs. Thompson; lake Itasca. June, July. Nos. 148, 

 1041, 1248. 



Cypripedium hirsutum Mill. Gard. Diet. ed. 8. No. 3. 1768. 

 Woods. Hubbard county. July. No. 1244. 



Cypripedium reginae Walt. PI. Car. 222. 1788. 

 Bogs. Minneapolis; lake Itasca. June. Nos. 315, 1048. 



Orchis rotunditolia Pursh. Fl. Am. Sept. 588. 1814. 

 Cold bogs. Lake Itasca. June. No. 1014. 



Habenaria bracteata (Willd.) R. Br. in Ait. Hort. Kew. ed. 

 2. 5:192. 1813. 

 Park Rapids. June. Nos. 1223, 1235. 



