56 MICHIGAN ACADEMY OF SCIENCE. 



220. HYPERICUM, Lin. St. John's-Wort. 



553. prolilicum, Lin. Sandy borders of woods on Belle Isle and elsewhere. 



Frequent. 



554. perforatum, Lin. Waste i^laces, Belle Isle, etc. Common. 



555. maculatum, Walt., var. corymbosum (Muhl.) 



H. corymbosum, Muhl. Ex. Willd. Sp. PI. 3. 1457: 1803. Differing 

 from the type in having less clasping leaves and styles only one- 

 half as long (about equalling the length of the pod). Woods on 

 Belle Isle. Common. 



556. uiutilum, Lin. Linden Park. Common. 



557. niajus (A. Gr.) Britt. Near Palmer Park. Rare. 



558. Canadense, Lin. Low grassy places. Frequent. 



FAMILY 60. CISTACE.E. Rock Rose Family. 



221. HELIANTHEMUM, ]\Lx. 



559. majus (Lin.) B. S. P. Frostweed. Near Palmer Park, etc. Common. 



560. Canadense (Lin.) Mx. Linden Park. Rare. 



222. LECHEA, Lin. 



561. villosa. Ell. Pinweed. Linden Park. Common. 



FAMILY 67. VIOLACE.E. Violet Family. 



223. VIOLA, Lin. Violet, Pansy. 



562. obliqua, Hill. Low grounds on Belle Isle, etc. Common. 



563. sororia, Willd. Rich woods on Belle Isle. Rare. 



564. ovata, Nutt. Belle Isle and near Palmer Park. Frequent. 



505. emarginata (Nutt.) Le Conte. Near Palmer Park and Linden Park. 

 Rare. 



566. blanda, Willd. Shores of Belle Isle. Frequent. 



567. var. amcena (Le C.) B. S. P. Near Palmer Park. Frequent. 



568. lanceolata, Lin. Woods on Belle Isle. Rare. 



569. pubescens. Ait. Dry woods on Belle Isle, etc. Common. 



570. var. eriocarpa (Schw.) Nutt. With the species. Common. 



571. Canadensis, Lin. Woods on Belle Isle. Rare. 



572. Labradorica, Schrank. Common in moist grounds on Belle Isle, etc. 



573. rostrata. Ph. Rich woods near Palmer Park. Rare. 



574. tricolor, Lin. Pansy. Waste places. Frequent. 



575. tenella, Muhl. With V. tricolor, but rare. 



Order 24. Mytrales. 

 FAMILY 68. LYTHRACE.E. Loosestrife Family. 



224. LYTHRUM, Lin. 



576. alatum, Lin. Loosestrife. Low grounds, Belle Isle and elsewhere. 



Common. 



225. DECODON, J. F. Gmel. 



577. verticillatus (Lin.) Ell. Swamp Loosestrife. Near water works. 



Frequent. 



FAMILY 00. ONAGRACE.E. Evening Primrose Family. 



226. ISNARDIA, Lin. 



578. palustris, Lin. Marsh Purslane. Common near Palmer Park. 



227. LUDWIGIA, Lin. 



579. polycarpa. Short and Peter. Frequent at Linden Park. 



228. EPILOBIUM. Lin. 



580. spicatum, Lam. Fireweed. Dry grounds on Belle Isle. Frequent. 



581. coloratum. Muhl. Willow Herb. Low grounds on Belle Isle. Common. 



582. adenocaulon, Haussk. With the preceding. Common. 



