IOWA PTERIDOPHYTA. 165 



Athyrium.\ Specimens from the following counties are in 

 the herbarium: Muscatine (T. H. Macbride, Sep., 1882, 

 in fine fruit) ; Johnson (1882, well-fruited) ; Jones (T.,H. 

 Macbride, Aug., 1898, in fine fruit); Jackson (T. H. 

 Macbride, Aug., 1883, well-fruited); Delaware (T. H. 

 Macbride, Aug., 1883, well-fruited; J. E. Cameron, Sep., 

 1897, in fine fruit); Cerro Gordo (Sept., 1900; sterile, 

 rather more hairy than is usual, and the veins are more 

 frequently forked.) 



Genus ASPLENIUM L., Sp. PL, vol. II, p. 1078 



(1753). 



ASPLENIUM ANGUSTlFOIvIUM Mx . 



Not common in the State. Growing in deep woods, on 

 rocky slopes, etc. northeastward. All the specimens in 

 the herbarium show well-fruited fronds. Mature fruits 

 appear in the latter part of August. Two counties only 

 are represented: Jackson (7". H. Macbride, Aug., 1883; 

 Shimek, Aug., 1894); Delaware (T. H. Macbride, Aug., 

 1883; J. E. Cameron, Sep., 1897). 



ASPLENIUM PIvATYNEURON (L.) Oakes. 



The only specimens in the herbarium were received (as 

 A. ebeneum) from Mr. Fred. Reppert. The first set was 

 collected "in open woods along Leutzinger's creek, 4 mi. 

 below Muscatine, Iowa, by Kenneth McKenzie." The 

 second was cultivated in Muscatine by Mr. Reppert from 

 native rootstocks in 1894, and is reported by him "from 

 sandy hill-side woods, rare." 



Genus CAMPTOSO KVSLink, Hort. Berol., vol. II, 



p. 69, (1833). 



Camptosorus rhizophylIvUS (L.) Link. 



Locally common in the eastern part of the State, grow- 



fMilde (in Soc. Siles. Cult. Nat., Nov., 1869) includes Diplazium in 

 Athyrium. 



