298 



Skunk Cabbage. 



Sweet Flag, 

 Calamus. 



Cat-tail Flag. 



Bur-reed. 



Bur-Teed, 



Duckweed, 

 Duck's-meat. 



Duckweed. 



REPORT OP THE 



Symplocarpus foetidus, Salisb. (Modes fcetidus- 

 W.) 



Ann Arbor ; Northport. 



Acorus Calamus, L. 



Quanecussee, Tuscola Co. ; Bruce Mine, Ca. 

 TYPHACE.E. 



Typha latifolia, L. 



Ann Arbor, common; Saginaw B. , common; Saut St. Marie. 



Sparganium eurycarpum, n. sp. Englm. 



Ann Arbor; Saginaw Bay, 14 June. 



Sparganium ramosum, Hudson. 



S. Mich. (Wright) ; Ft. Gratiot. 



Sparganium simplex, Hudson. (JS. Americanum- 

 W.) 



Ft. Gratiot; Saginaw Bay, 14 June; S. E. (Wright). 

 LEMNACE.E. 



Lemna trisulca, L. 



S. E. (Wright). 



Lemna minor, L. 



S. W. (Univ. Herb) ; Northfleld , Washtenaw Co. , (Miss Clark) . 



Lemna polyrhiza, L. 



S. Mich. (Univ. Herb). 



Pondweed. 



Pondweed. 



Arrow-grass. 



NAIADACE^E. 



Potaniogeton pectinatus, L. 



S. Mich. (Wright). 



Potamogeton pauciflorus, Pursh. 



S. E. (Univ Herb). 



Potamogeton perfoliatus, L. 



S. Mich., (Wright). 



Potamogeton prsslongus, Wulf. 



Saginaw Bay, 16 June; (Univ. Herb). 



Potamogeton lucens, L. 



S.Mich., (Wright). 



var. ? fluitans. 



S. E. (Univ. Herb) 



Patamogeton natans, L. 



S.Mich., (Wright). 



Potamogeton heterophyllus, Schreber. 



S. Mich. (Wright). 



ALISMACE.E. 



Triglochin palustre, L. 



S. W. (Wright). 



