40 MICHIGAN ACADEMY OF SCIENCE. 



JUNIPERUS L. 



*111. J. communis L. Common Juniper. Occasional throughout, along the high- 

 est grounds. 



112. J. nana Willd. J. Sibirica Burgsd. Keweenaw Co., O. A. Farwell; Man- 

 istee, F. P. Daniels; common in Jackson, Livingston and Washtenaw Counties, 

 C. A. Davis. 



113. J. Sabina L. Shrubby Red Cedar. /. SaMna procumbens Pursh. Little 

 Traverse Bay, W. J. B.; Keweenaw Co., and Rochester, O. A. Farwell. N. & U. P. 



*114. J. Virginiana L. Red Cedar. Savin. Bluffs and sterile soil. Throughout, 

 but scarce. 



TAXACE.E Lindl. Yew Family. 

 TAXUS L. 



115. T. Ca'nadensis Marsh. American Yew. Ground Hemlock. T. minor 

 (Michx.) Britton. Moist woods in the shade of evergreens. Along the east shore 

 of Lake Michigan as far south as South Haven, L. H. Bailey; Macomb Co., where it 

 is rare. St. Clair Co., C. K. Dodge. Common northward. 



TYPHACEJE J. St. Hil. Cat-tail Family. 



TYPHA L. 



116. T. angustifolia L. Narrow-leaved Cat-tail Flag. Detroit, Dr. A. B. Lyons; 

 Port Huron, C. K. Dodge; Ann Arbor and Tuscola Co., C. A. Davis; Bay Co., G. M. 

 Bradford; S. E. Rare. 



*117. T. latifolia L. Common Cat-tail. Borders of streams and ponds. Common. 

 Th. 



SPARGANIACE.E Agardh. Bur-Reed Family. 



SPARGANIUM L. 



118. S. androcladum (Engelm.) Morong. Branching Bur-reed. S. simplex and- 

 rocladum Engelm. Ann Arbor, Allmendinger Cat.; Flint, Dr. Clark; Macomb Co.; 

 St. Clair Co., C. K. Dodge; Bay Co., G. M. Bradford. 



*119. S. eurycarpum Engelm. Broad Fruited Bur-reed. Borders of ponds. Fre- 

 quent. C. & S. 



120. S. minimum Fries. Small Bur-reed. Hubbardston; Manistee, E. J. Hill; 

 Macomb Co.; Homestead, Benzie Co.; Keweenaw Co., O. A. Farwell. Rare. 



*121. S. simplex Hudson. Simple-stemmed Bur-reed. Fruitport, E. J. Hill; 

 Oscoda; Keweenaw Co., O. A. Farwell; Black River, B. & K. Common. Th. 



122. S. simplex angustifolium (Michx.) Engelm. Isle Royale, Whitney Cat.; 

 Keweenaw Co., O. A. Farwell; N. shore of Lake Superior, Agassiz. 



NAIAD ACEJE Lindl. Pondweed Family. 

 POTAMOGETON L. 



123. P. alpinus Balbis. Northern Pondweed. P. rufescens Schrad. N. & U. P. 

 *124. P. amplifolius Tuckerman. Large-leaved Pondweed. Maple River; Macomb 



Co.; Pere Marquette River at Ludington, E. J. Hill; St. Clair Co., C. K. Dodge. 



125. P. diversifolius Raf. Rafmesque's Pondweed. P. hybridus Michx. Dr. 

 A. B. Lyons ; Keweenaw Co.. O. A. Farwell. 



126. P. fihformis Pers. Filiform Pondweed. Belle Isle, O. A. Farwell. 



*127. P. foliosus Raf. Leafy Pondweed. P. pauciflorus Pursh. Hubbardston, 

 Grand Rapids, Flint, Macomb Co., and northward. Typical forms occur at Manistee 

 and Frankfort, E. J. Hill. Th. 



128. P. foliosus Niagarensis. (Tuckerman) Morong. In running water, Hub- 

 bardston; Macomb Co., and along the great lakes. 



*129. P. Friesii Ruprecht. Fries' Pondweed. P. mucronatus Schrad. Crooked 

 River, Cheboygan Co., and common at Manistee and Frankfort, E. J. Hill; Oscoda. 

 St. Mary's River, Sault de Ste Marie; Detroit, O. A. Farwell. 



*130. P. heterophyllus Schreb. Various-leafed Pondweed. Th. 



