100 MICHIGAN ACADEMY OF SCIENCE. 



ABUTILON Gaertn. 



*1454. A. Abutilon (L.) Rusby. Velvet-leaf. A. Avicennae Gaeit. Roadsides and 

 river banks. Very common in places, and, along with Datura Stramonium, forming 

 regular thickets. Alma. Ann .\:l)or, C. A. Davis. C. & S. 



HIBISCUS L. 



1455. H. Moscheutos L. Swamp Rose-raallow. Monroe; Flint; Put-in-Bay, Lake 

 Erie; St. -loseph, V. Willoughbv; Detroit. D. H. Campbell; Saugatuck, Tuthill. Rare. 

 C. & S. 



*1450. H. Trionum L. Bladder Ketmia. South, Dr. Wright; Ann Arbor, Winch. 

 Cat.; Flint; Ypsilanti, O. A. Farwell; Alma, Ann Arbor, C. A. Davis. Rare. 



HYPERICACEiE Lindl. St. John's-wort Family. 



HYPERICUM L. 



•1457. H. Ascyron L. Great St. John's Wort. South Haven; Ann Arbor; Ft. 

 Gratiot; Macomb Co.; Ionia; Stanton; Hubbardston; Alma; Crystal Lake; Flint; 

 Ontonagon River, Whitnej' Cat.; Grand Rapids, Sones; Keweenaw Co., O. A. Farwell. 

 Occurs at wide intervals and in small patches. Th. 



1458. H. boreale (Britton) Bicknell. H. Canadense boreale Britton. Keweenaw 

 Co., 0. A. Farwell. 



*1459. H. Canadense L. Canadian St. John's-wort. Ann Arbor, Miss Clark; L. Sup., 

 A. Gray; Keweenaw Co., O. A. Farwell; Carp River, Porter; Alma. Infrequent. 



1460. H. ellipticum Hook. Ann Arbor. Miss Clark; Keweenaw Co., 0. A. Farwell; 

 Carp River, T. C. Porter. Infrequent. 



1461. H. Kalmianum L. Kalm's St. John's-wort. Along the lakes; more common 

 northward. ^Manistee. F. P. Daniels; Fort (iratiot. Winch. Cat.; Petoskey; Port Austin, 

 C. A. Davis; S. W., H. S. Pepoon. Th. 



*1462. H. maculatum Walt. Spotted St. John's-wort. Common. Th. 



*1463. H. majus (A. Gray) Britton. Larger Canadian St. John's-wort. H. Cana- 

 dense mnjus A. Grav. St. Clair Co., Foerste; Flint; Fruitport and Old Mission, E. J. 

 Hill; L. Sup.. A. Gray. Vestaburg. Th. 



* 14(54. H. mutilum L. Dwarf St. John's-wort. Common. Th. 



*1465. H. perforatum L. Common St. John's-wort. Ionia; Flint; Keweenaw Co., 

 O. A. Farwell. Infrecjuent. 



*1466. H. prolificum L. Shrubby St. J. A low, compact shrub. Frequent from C. 

 Southward. Th. 



SAROTHRA L. 



1407. S. gentianoides L. Pine- weed. Hmwhum nudicaule Walt. Ypsilanti. O. 

 A. Farwell. 



TRIADENUM Raf. Elodea Pursh, not Michx. 



*1468. T. Virginicum (L.) Raf. Marsh St. John's-wort. Elodea campanulata 

 Pursh. Common. Th. 



CISTACE.^ Lindl. Rock-rose Family. 

 HELIANTHEMUM Pers. 



*14(>n. H. Canadense (L.) Mich.x. Frost-weed. Frequent. Th. 



1470. H. majus (L.) B. S. P. Hoary Frost- weed. Vestaburg, Davis and Wheeler; 

 Muskegon, W. J. B. ; Fife Lake, Alpena, C. F. Wheeler; Detroit, O. A. Farwell. 



HUDSONIA L. 



1471. H. tomentosa Nutt. False Heather. Shores of Great Lakes, A. Gray; S. 

 Mich., Winch. Cat.; L. Sup., Can. Cat.; Oscoda. Frequent. Th. 



