INTRODUCTION. XVI 



Kriophorum gracile. Triglocbin palustris. 

 vaginatum. " niaritlma. 



Festuca tenella. Utricularia cornuta. 

 Habenaria Hookeriana. • gibba. 



hyperborea. . intermedia. 



Hemicarplia subs()uarrosa. minor. 



Hypericum Ascyron. Viola lanceolata. 

 Krigia Vlrginlca. •• saglttata. 



Crooked Lakh Region. 



This region lies one mile north-east from the Lamberton Lake 



region, and includes Perch Lake and Crooked Lake, the latter being 



now in two distinct parts. This region is surrounded by a narrow 



marsh, and beyond by hills of sand loam. Many of the species in 



the Lamberton Lake region are found here, those differing are: 



Asclepias verticillata. Nymph aea odorata. 



Carex Sartwellii. Physalis Virgiaiana vulgaris. 



Cyperus Engelmanni. Psilocarya scirpoides. 



speciosus. Rynchospora macrostachya. 



Eleocharis olivacea. Scirpus Smithii. 



Fuirena squarrosa pumila. Stachy.'* hyssoplfolia. 



The Reed's Lake Region. 



This region includes Reed's Lake and Fisk Lake. On the mar- 

 gin of Reed's Lake in shallow water occur: 



Alisma Plantago. Pontederia cordata. 



Decodon verticlllatus. Saglttarla arifolia. 

 Eleocharis mutata. • latifolla. 



" palustris rigens. " riglda. 



Equisetum limosum. Scirpus lacustris. 

 Heteranthera graminea. " pungens. 



Nuphar ad vena. Sparganlum androcladuni. 

 Nymphaea tuberosa. " eurycarpum. 



Peltandra undulata. "' simplex. 



Phragmltes communis. Typha latifolia. 



In deeper water, such as the following: 



Bldens Beckii, Potamogeton lonchite.s. 



Brasenia peltata. " lucens. 



Ceratophyllum demersum. •■ pectinatus. 



Elodea Canadensis. ■ perfoliatus>. 



Lemna trisulca. perfoliatus Riohardsonii. 



Myriophyllum spiratum. •• praelonerus. 



