298 



REPORT OF THE 



Skunk Cabbage. 



Sweet Flag, 

 Calamus. 



Cat-tail Flag. 



Bur-reed. 



Bur-reed. 



Bur-reed. 



Duckweed, 

 Duck's-meat. 



Duckweed. 



Duckweed. 



Pondweed. 



Pondweed. 



Pondweed. 



Pondweed. 



Pondweed. 



Pondweed. 



Pondweed. 



Symplocarpus foetidus, Salisb. (Modes fcetidus — 

 W.J 



Ann Arbor ; Northport. 



Acorus Calamus, L. 



Quauecussee, Tuscola Co. ; Bruce Mine, Ca. 

 TYPHACE.E. 



Typha latifolia, L. 



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



Sparganium Gurycarpum, n. sp. Englm. 



Ann Arbor; Saginaw Bay, 14 June. 



Sparganium ramosum. Hudson. 



S. Micb. (Wrigbt) ; Ft. Gratiot. 



Sparganium simplex, Hudson. (S. Americanum — 

 W.) 



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

 LEMNACE.B. 



Lemna trisulca, L. 



S. E. (Wrigbt). 



Lemna minor, L. 



S. W. (Univ. Herb) ; Northfield, Wasbtenaw Co., (Miss Clark). 



Lemna polyrhiza, L. 



S. Micb. (Univ. Herb). 



NAIADACEJE. 



Potamogpton pectinatus, L. 



S. Mich. (Wright). 



Potamogeton pauciflorus, Pursh. 



S. E. (Univ Herb). 



Potamogeton perfoliatus, L. 



S. Mich., (Wright). 



Potamogeton praelongus, Wulf. 



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



Potamogeton lucens, L. 

 S. Mich., (Wright). 

 var. ? timtans. 



S. E. (Univ. Herb) 



Patamogeton natans, L. 



S. Micb.,' (Wright). 



Potamogeton heterophyllus, Schreber. 



S. Mich. (Wright). 



ALISMACEiE. 



Arrow-grass. Triglochin palustre, L. 



S.'w. (Wright). 



