170 NATURAL HISTORY BULLETIN. 



collected by the writer on a wooded slope with sandstone 

 outcroppings, along Pine creek, Muscatine county, in 

 November, 1897, and is in fruit. 



Lycopodium clavatum L. 



Quite rare. The specimens in the herbarium are all 

 from Johnson county ( T. H. Maebr/de, no date, sterile; 

 Mary F. Linder, no date, sterile; Shimck and P. C.Myers, 

 March, 1897, sterile). They have been found in but two 

 localities in the county, — both in rather low woods . 



Lycopodium complanatum L. 



Found with the preceding species in Johnson county, 

 and in a similar locality in Muscatine county. Rare in 

 Iowa. The herbarium contains specimens from two 

 counties: Johnson (T. H. Macbride, no date, sterile; 

 Shimek, March, 1897, sterile) ; Muscatine {F. Rep pert, 

 Aug., 1894, in fruit.) 



Order II. SELAGINELLACE/E Underwood, Our 

 Nat. Ferns, P. 10?, (1881). 



Genus SELAGINELLA Beauv., Prod. Ae., p. 



101, (1805). 



Selaginelxa rupestris (L.) Spring. 



This species is found in several widely separated locali- 

 ties in the State, always in barren, sandy or rocky, soil. 

 All the sets in the herbarium contain more or less fruit. 

 They are from the following counties: Muscatine (T. H. 

 Macbrtde, July, 1895; Shimek, Oct., 1896; both from 

 sand along the Cedar river) ; Dubuque (P. Bartsch, 1895) ; 

 Lyon (Aug., 1896; July, 1899; both from Sioux Quartzite 

 exposures) . 



