12 AMERICAN MIDLAND NATURALIST 



Sagitta graminea (Michx). 



Sagittaria graminea Michx. Fl. Bor. Am. 2, p. 190, (1803). 



Millers, Ind., U. N. D. Herb. No. 2156. (Laporte Co.) Barnes. 

 Lake Maxinkuckee, H. W. Clarke. Millers, Ind., L. M. Umbach. 



Sagitta rigida (Pursh.). 



Sagittaria rigida Pursh, Fl. Am. Sept. 397, (18 14). 



Sagittaria heterophylla Pursh, 1. c. p. 397 not S. heterophylla 

 Schreb. (181 1). 



Millers, Ind. Higley & Raddin. Lawton, Mich. (Cass Co.), 

 U. N. D. Herb. No. 2341. 



Sagitta engelmanniana (J. G. Smith). 



Sagittaria engelmanniana J. G. Smith. Mem. Torr. Bot. 

 Club. 5, p. 25, (1894); Sagittaria variabilis vsix. gracilis S. Watson, 

 in A. Gray, Man. Ed. 6, p. 555, (1889), not Engelm. 



Notre Dame, Ind., U. N. D. Herb. Herb. No. 2547. Lake 

 Maxinkuckee, H. W. Clarke. 



Family 17. VALLISNERIACEAE Dumort. Anal. 



Fam. p. 54, (1829). 



Vallisnerieae Dum. Fl. Belg. p. 135, (1827), as tribe under 

 Hydrocharideae . 



PHILOTRIA Raf. Am. Month. Mag. 2, p. 175, (1818). 



Elodea Mich. Fl. Bor. Am. I., p. 20, (1803), not Elodes Adanson, 

 (1763); Udora Nutthall, Gen. 2, p. 242, (18 18). 



Philotria canadensis (Michx.) Britton, Sc. II., 2, p. 15, (1895). 



Elodea canadensis Michx. 1. c. 



Anacharis canadensis Planch. Ann. Sc. Nat. III. 9, p. 75, (1849). 



(Laporte Co.) Barnes; Millers, Ind., Benton Harbor, Mich., 

 Notre Dame, Ind., Rum Village, South Bend, etc., very commom. 



VALLISNERIA MicheH, Nov. PI. Gen. p. 12, (1729). 



Also Vallisneria Linn. Gen. p. 300, (1737), p. 446, (1743); 

 Hort. ChfT. 1). 454, (1737); Sp. PI. p. 1015, (1753). 



Vallisneria spiralis Lmn. Sp. PI. 1. c. (1753). 



Lake Maxinkuckee, H. W. Clarke,* (St. Joseph Co.) Ind. 

 Barnes. (To be continued.) 



* The citations attributed to H. W. Clarke, L. H. Bailey, L. M. 

 Umbach, A. Chase, Wight and some by Hill and others were taken from 

 specimens deposited in the U. S. Herbarium in the Smithsonian Institution, 

 where through the kindness of Dr. J. N. Rose, I was enabled to examine the 

 specimens during the summer vacations of the last three years. 



