380 MINNESOTA BOTANICAL STUDIES. 



Leptorchis liliifolia (L.) KUNTZE, Rev. Gen. PL 671. 1891. 

 Coll. : Wheeler 107, 168, 195, Winnebago ; 350, Crooked 

 Creek; 391, Jefferson. June, July. 



JUGLANDACE^E. 



Juglans nigra L. Sp. PL 997. 1753. 



Coll. : Lyon 243. Crooked Creek. July. 



Juglans cinerea L. Sp. PL Ed. 2, 1415. 1763. 

 Coll. : Lyon 62, 108, Winnebago. June. 



Hicoria minima (MARSH.) BRITTON, Bull. Torr. Club, 15 : 284. 



1888. 



Coll.: Lyon 149, Winnebago ; 238, 239, Mayville ; 475, 

 Jefferson. June, Aug. 



Hicoria ovata (MILL) BRITTON, Bull. Torr. Club, 15: 283. 



1888. 

 Coll. : Lyon 71, Winnebago; 474, Jefferson. June, Aug. 



SALICACE.E. 



Populus alba L. Sp. PL 1034. 1753. 



Coll. : Lyon 159, Winnebago. June. 



Populus balsamifera candicans (AiT.) A. GRAY, Man. Ed. 2, 



419. 1856. 

 Coll. : Lyon 156, Winnebago. June. 



Populus grandidentata MICHX. Fl. Bor. Am. 2: 243. 1803. 

 Coll. : Lyon 64, Winnebago. June. 



Populus tremuloides MICHX. FL Bor. Am. 2: 243. 1803. 

 Coll. : Lyon 88, Winnebago. June. 



Populus deltoides MARSH, Arb. Am. 106. 1785. 

 Coll. : Lyon 125, Winnebago. June. 



Salix nigra MARSH, Arb. Am. 139. 1785. 

 Coll. : Wheeler 265, Winnebago. June. 



Salix amygdaloides ANDERS. Ofv. Handl. Vet. Akad. 1858 : 



114. 1858. 

 Coll. : Wheeler 137, Winnebago. June. 



Salix lucida MUHL. Neue Scrift. Ges. Nat. Fr. Berlin, 4: 239. 



fl.6.f.?. 1803. 



Coll.: Wheeler 138^-, Winnebago ; 232, Crooked Creek. 

 June, July. 



