N0.122H. NOhTH AMERICAN FERNS— MAXON. 6^9 



family XII. ISOETACEAE Ton-. Fl. State K. Y. 2 : ol-i. 1.S43. 

 ISOETES L. Sp. ri. IK Ml. lir.;-',. Quillwokt. 



Isoetes lacustris L. Sp. PI. IIOO. \~ib'-'>. 



I>aliriulor to the Lake Superior region and New Jersey. 



Isoetes paupercula (Engelm.) A. A. Eaton, comb. nov. 



Isoi'fc'^ lacuntris var. paupercula Engelm. Trans. St. Louis Acad. Sci. 4 : ;;77. 1882. 

 Iwetes occidental is Henderson, Bull. Torr. Club 27 : .358. IHOO. 

 Colorado to California, Washington, and Idaho. 



Isoetes lieterospora A. A. Eaton, Fern wort Papers S. 190t>. 

 Jordan Pond, Mount Desert Island, Maine {Rand). 



Isoetes riparia Engelm. ; A. Br. Flora 29 : 178. 1S40. 



Along the banks of the Delaware River in the following localities: Near Phila- 

 delphia, Pennsylvania {Zantzinger; Durand)*; Camden, XewJersej- (iV/r/.r/'; 

 D. C. Eaton); Chester, Pennsylvania {T. C. Palmer); "Wilmington, Delaware 



( Co)n)iio))s: Canhij ) . 



Isoetes tuckermani A. Br. in A. Gra}', Manual ed. 5. 676. 1867. 

 Elaine, Xew Hampshire, Massachusetts, and Connecticut. 



Isoetes tuckermani borealis A. A. Eaton, Fernwort Papers 10. 1900. 



Labrador {Allen); Epping, New Hampshire (-1. -1. Eaton); Mount Desert Is- 

 land, Kennebago Lake {Coiille), and Oldtown {Harvey), INIaine. 



Isoetes hieroglyphica A. A. Eaton, Fernwort Papers 10. 190( »-f 

 [Maine: St. Francis Lake; Moosehead Lake; Rangeley Lakes. 



Isoetes harveyi A. A. Eaton, Fernwort Papers 11. 1900. 



Oldtcjwn and Mount Desert Island, Maine; Cambridge, Massachusetts {Boott). 



Isoetes foveolata A. A. Eaton in Dodge, Ferns & Fern Allies New Eng. 



38. 1896. 

 Epping, AVest Epping, East Kingston, and Xewmarket, Xew Hampshire (.1. ,1. 

 Eaton); Meriden, Connecticut {E. W. Hall). 



Isoetes saccharata Engelm. in A. Gray, Manual ed. 5. 676. 1867. 



Banks of the Wicomico River, below Salisbury, and of the Xanticoke River, 

 Maryland {Canhy); Elk River, Maryland \t. C. Palmer); Four-Mile Run, 

 jiear Washington, D. C. {Steele) . 



Isoetes saccharata reticulata A. A. Eaton in Steele, Proe. Biol. Soc. Wash. 

 14 : 49. 1901. 

 Hunting Creek, near Alexandria, Virginia {Corille <_[• ]'<tsei/; ^faxon). 



Isoetes saccharata palmeri A. A. Eaton in Steele, Proc. Biol. Soc. Wash. 

 14:49. 1901. 

 Lloyds Creek, Alary land (7". C. J'ahner); Alount Vernon, Virginia (Cor(7/c). 



Isoetes melanospora Engelm. Trans. St. Louis Acad. Sci. 3 : 39.5. 1877. 

 Georgia: Stone Mountain, {Canhy; Underwood; Boynton); Little Stone Mountain, 

 Lithonia {Small). 



* Locality now apparently destroyed by improvements. — A. A. Eaton. 

 fThe Robinson & Schrenk, Quiddy Viddy Lake. Xewfoundland, specimens are 

 lirobably to be referred here. — A. A. Eaton. 



