STATE GEOLOGIST. 



Arrow-grass. 



Scheuchzeria. 

 Water Plantain. 



Arrow-head. 



Arrow-head. 

 Arrow-head. 



Waterweed. 



Tape grass, 

 Eel grass. 



Showy Orchis. 



Naked-gland 

 Orchis. 



Large Round- 

 leaved Orchis. 



Smaller two- 

 leaved Orchis. 



Bracted Green 

 Orchis. 



Northern Green 

 Orchis. 



Triglochin mari|imum, L. 



S. Mich., (Wright). 



var. elatum. 



False Presqu' Isle,L. Huron, 11 July, common: Drummond's I.; Ann 

 Arbor, (Miss Clark). 



Scheuchzeria palustris, L. 



S. W. (Wright). 



Alisma Plantage, L. var. Americanum, Gray. (A. 

 Plantago — W.) 



Ann Arbor ; S. W. (Wright). 



Sagittaria variabilis, Engelm. 



"Psaganing," Bay Co., 26 June; Ann Arbor. 



var. diversifolia. 



S.Mich., (Univ. Herb). 



var. angustifolia. 



Elk Rapids, Antrim Co. 



Sagittaria heterophylla, Pursh. 



Elk Rapids, Antrim Co. 



Sagittaria pusilla, Nutt. 



S. W. (Univ. Herb). 



HYDROCHARIDACE-E. 



Anacharis Canadensis, Planchon. 



S. Mich. (Univ. Herb). 



Vallisneria spiralis, L. 



Ann Arbor. 



ORCHIDAct^!. 



Orchis spectabilis, L. 



Ann Arbor. Near the light-house at the mouth of Saginaw river is a 

 variety with light purple lip, interruptedly streaked and mottled 

 with dark purple. In bloom, 14 June. 



Gymnadenia trtdentata, Lindl. {Habenaria triden- 

 tata—W.) 



S. W. (Wright). 



Platanthera orbiculata, Lindl. [Hahenaria orbicu- 

 lata—W.) 



Ft. Gratiot; False Presqu' Isle, L. Huron, 11 July; Drummond's I. ; Saut 

 Ste Marie, (Miss Clark). Rare. 



Platanthera Hookeri, Lindl. 



S. E. (Univ. Herb). 



Platanthera bracteata, Torr. {Hahenaria bracteata — 

 W.) 



Ann Arbor; Emmet Co. 



Platanthera hyperborea, Lindl. [Hahenaria huron- 

 ensis — W. ) 



AnnArbor; Squaw Pt., Thunder Bay, 6 July; Northport; S.W. (Wright). 



