290 



REPORT OF THE 



Mild Water-pep- 

 per. 



Knotgrass, 

 Goosegrass, 

 Door-weed. 



Slender Knot- 

 grass. 



Halberd-leaved 

 Tear-thumb. 



Arrow-leaved 

 Tear-thumb. 



Black Bindweed. 



Climbing False 

 Buckwheat. 



Buckwheat. 



Swamp Dock. 

 Tall Dock. 

 Willow Dock. 



Great Water 

 Dock. 



Polygonum hydropiperoides, Michx. (P. mite — W.) 



S. Mich., (Wright). 



Polygonum aviculare, L. 



Ann Arbor; Bruce Mine, Ca., 26 July. 



var. erectum, Roth. 



Ann Arbor. 



Polygonum tenue, Michx. 



S. Mich. (Wright). 



Polygonum articulatum, L. 



Traverse City, 8 Sept. , beginning to blossom, abundant. 



Polygonum Virginianum, L. 



Ann Arbor ; S. W. (Wright). 



Polygonum arifolium, L. 



Gros Cap, L. Mich., 18 Aug.; S. Mich. (Wright). 



Polygonum sagittatum, L. 



Saut St. Marie 31 July; S. Mich. (Wright). 



Polygonum Convolvulus, L. 



S. W. i Wright). 



Polygonum cilinode, Michx. 



Drummond'sL, common; Huron Co., 20 June; Saut St. Marie. 



Polygonum dumetorum, L. (P. scandens — W.) 



Ann Arbor; Mackinac, (Miss Clark). 



Fagopyrum esculentum, Moench. (Polygonum Fa- 



gopyrum- 



Ann Arbor. 



-W.) 



Bloody-vined 

 Dock. 



Field or Horse 

 Sorrel. 



Rumex verticillatus, L. (B. Brittanica — W.) 



Ann Arbor; Islands of Thunder Bay, 7 July; S. W. (Wright).- 



Rumex altissimus, Wood. 



Saut St. Marie, 29 July. 



Rumex salicifolius, Weinmann, Hook. 



Villa Cross, Emmet Co. , 22 Aug. 



Rumex Hydrolapathum, Hudson, var. American- 

 um, Gray. 



Bruce Mine, Ca., 26 July; S. Mich. (Univ. Herb). 



Rumex obtusifolius, L. 



Saut St. Marie, 29 July; Ann Arbor, (Miss Clark). 



Rumex crispus, L. 



Ann Arbor; Saut St. Marie, 29 July. Commonest species of dock. 



Rumex sanguineus, L. 



Ann Arbor, (Miss Clark). 



Rumex Acetosella, L. 



Ann Arbor; Ft. Gratiot; Saginaw B. ; Drummond's I. ; Mackinac. Com- 

 mon. 



