IOWA ACADEMY OF SCIENCES. 151 



ORDER LYCOPODIACE^. 



Liicopodium hickhibim Michx. Fl. Bor. Am. 2: 284. 1803. 



This plant is rare in Iowa. The only reported localities 

 are Muscatine and Steamboat Rock. This ouj^ht to be more 

 frequent than L. coniplanatKH/. It was found on sandstone 

 ledges near Steamboat Rock, the only Iowa specimen in 

 our collection, though also reported by Shimek from Pine 

 Creek, Muscatine county. 



Iowa: Steamboat Rock — Miss King. 



Li/copodiunt coNiphDUffiiiH L. Sp. PI. 1104. 1753. 



There are only two reported in the state, Muscatine and 

 Johnson counties. The Wisconsin specimen we found in 

 hemlock woods with Epigcea repens. 



Southwestern Wisconsin: Rockton — Panimel. 



Prof. Shimek also reports L. clavatum from Johnson 

 county, two localities. 



ORDER SELAGINELLACEiE. 



Selaqinella riipesfris. Spring, Mart. Fl. Bras, l^; 118. 

 1845. 



There are no specimens in the collection from this state,, 

 but Prof. Shimek reports it from Muscatine, Dubuque and 

 Lyon counties. It is not infrequent in pine woods and 

 sandy barrens in Wisconsin. 



Southwestern Wisconsin: La Crosse, "sandy barrens"^ 

 — Fauniiel. 



order SALVINIACEyE. 



Azolla Carol iuiana WiJId Sp. PI. 5: 541. 1810. 

 Iowa: Muscatine — lieppcii; Lansing— J//.s\<^ Ki}ig. 



