THE FERN BULLETIN 



57 



203. Isoetes riparia Engelm. Rare. Along the 

 Delaware River. It is probable that this and 

 the following are two forms of the same species 

 in which case the following might be named 

 Isoetes riparia saccharta (Engelm.) 



294. Isoetes saccharata Engelm. Not uncommon ; 

 on tidal flats about Chesapeake Bay and in the 

 rivers that empty into it. 



The forms Palmer i A. A. Eaton and 

 reticulata A. A. Eaton are seasonal forms 

 found with the type. 



295. Isoetes Tuckermani A. Br. Not uncommon ; in 



rather deep water. New England. 



The forms borealis A. A. Eaton and Harveyi 

 (A. A. Eaton) are reported from the northern 

 parts of the species' range. 



290. Isoetes truncata (A. A. Eaton.) Not common; 

 Vancouver Island to Alaska. — Isoetes echinos- 

 pora truncata A. A. Eaton 



297. Isoetes valida (Engelm.) Rare. New Hamp- 

 shire to Delaware and Virginia. — Isoetes Eatoni 

 Dodge; Isoetes Engelmanni valida Engelm. 



Death of Mrs. Horton. — We note with deep re- 

 gret the death of Mrs. Frances B. Horton at Brattle- 

 boro, Vt., Aug. 18, 1907. Mrs. Horton was the dis- 

 coverer of a cut-leaved form of As planum ebeneum 

 in Vermont which Mr. Davenport named Hortonae in 

 her honor. 



