372 MINNESOTA BOTANICAL STUDIES. 



Equisetum pratense EHRH. Hanov. Mag. 138. 1784. 



Coll. : Lyon 29, Winnebago. June. 

 Frequent in light shaded soil. 



Equisetum hyemale L. Sp. PI. 1062. 1753. 



Coll. : Lyon 415, Winnebago. Aug. 

 Common. 



Equisetum laevigatum A. BR. ; Engelm. Amer. Journ. Sci. 



46: 87. 1844. 



Coll. : Lyon 18, Winnebago. June. 

 Local, moist meadows. 



SELAGINELLACEJE. 



Selaginella rupestris (L.) SPRING, in Mart. Fl. Bras, i : Part 



2, 118. 1840. 



Coll. : Lyon 78, Winnebago. June. 

 Infrequent, dry rocks. 



SPERMATOPHYTA. 



ARCHISPER1YLE. 



PINACE-3E. 



Pinus strobus L. Sp. PL 1001. 1753. 



Coll. : Wheeler 166, 254, Winnebago. June. 

 Local on bluffs along Winnebago and Crooked Creeks. 



Juniperus communis L. Sp. PI. 1040. 1753. 



Coll.: Wheeler 108, Winnebago; 213, Jefferson ; 349, 



Crooked Creek. June, July. 

 Common on dry bluffs. (Plates XXI. , A and B, XXIV. , B.) 



Juniperus virginiana L. Sp. PI. 1039. 1753. 



Coll. : Wheeler 158, 169, Winnebago. June. 

 Frequent on dry bluffs. 



Juniperus sabina L. Sp. PL 1039. I 753- 



Coll. : Wheeler 214, Jefferson. June. 



Rare and local on dry bluffs. No previous collection reported 

 from this part of the state. This is about the most southern 

 point of collection for this species in the United States accord- 

 ing to Britton and Brown. 



