Isoetes echinospora Durien. var. Braunii Engelm. In 

 shallow water, muddy borders of ponds and streams, 

 frequent throughout. 



Isoetes echinospora Durien. var. muricata Engelm. 

 This form with longer, very slender leaves is reported 

 from a few stations. 



Isoetes Gravesii A. A. Eaton. Occasional or local on 

 muddy border of ponds and slow streams. Widely dis- 

 tributed and plentiful at certain stations. 



Isoetes Engelmanni A. Br. Occasional throughout 

 on muddy border of ponds and streams where it would 

 be submerged during high water. The slender form 

 called var. gracilis is sometimes seen. 



Isoetes Canadensis Engelm. In shallow water of 

 streams. Rare. Westport, Fairfield (Dr. E. H. 

 Eames.) 



A few comments on the preceding list may be of 

 interest. 



Three of the ferns listed, Cheilanthes lanosa, As- 

 plenium pinnatiiidum, Asplenium montanum, are not 

 known elsewhere in New England, and our Connecticut 

 stations are supposed to be the northern limit of their 

 range. One of the fern allies, Marsilia quadrif 'olia, has 

 not been collected as a native plant anywhere in the 

 United States except at the Bantam Lake station; I do 

 not know that anyone has ever claimed for Connecticut 

 an extremely large fern flora, but investigation shows 

 that our list will bear comparison with that of almost 

 any other state. 



Mr. Eggleston in his Fern Flora of Vermont states 

 that Vermont has a surprisingly large number of ferns 

 for its area. Vermont is not a large state, but it covers 

 practically twice as much surface as Connecticut. Figur- 

 ing both lists on the same basis of species and varieties 

 of the, ferns proper, the Vermont list has nine species 

 " lacking in our list, while we have seven not on the Ver- 

 n wrt list. Of the fern allies, Vermont has six not on 

 ^Bff list, and we have eight not on theirs. That is, we 



