72 CATALOG OF PLANTS. 



ance in getting to and from the islands; to Prof. C. A. Davis, formerl}' 

 of the University of Michigan^ now of the U. S. Geological Survey, 

 for much encouragement and manj^ valuable suggestions; to Prof. C. F. 

 Wheeler, formerly of the Michigan Agricultural College, now of the 

 U. S. Department of Agriculture, Bureau of Plant Industry, for kindly 

 looking over the various species of Cyperaceae and other plants; and 

 to A. S. Hitchcock, agrostologist of the U. S. Department of Agri- 

 culture, for the examination of grasses, especially the various species 

 of Panicum. 



In the preparation of the following list, Gray's New Manual of Botany 

 has been followed, except where no common name is given in this 

 work, it has been taken from Britton and Brown's Illustrated Flora 

 and Britton 's Manual. In writing all specific names capital letters 

 have been purposely omitted. 



LIST OF SPECIES. 



1. Polypodium vulgare L. Common polypody. — Abundant od 



edge of overhanging rocks at Hat Point, Port Austin and 

 Point aux Barques. 



2. Phegopteris polypodioides Fee. Long beech-fern. — " Under over- 



hanging rocks of old shore cliff east of Point aux Barques." 

 Prof. C. A. Davis. 



3. Phegopteris dryopteris (L.) Fee. Oak fern. — "Under overhang- 



ing rocks east of Point aux Barques." Davis. 



4. Adiantum pedatum L. Maidenhair. — Frequent in rich damp 



woods. 



5. Pteris aquilina L. Common brake. — Very common on both 



damp and dry ground. 



6. Woodwardia virginica (L.) Sm. Virginia chain-fern. — Abundant 



at one place, in a swamp northeast of Rush Lake. 



7. Asplenium filix-foemina (L.) Bernh. Lady fern. — Common in 



moist places. 



8. Polystichum achrosticoides (]\Iichx.) Schott. Christmas fern. — 



Near Port Austin. Not common. 



9. Aspidium thelypteris (L.) Sw. ]\larsh shield-fern. — Very com- 



mon in damp and marshy places. 



10. Aspidium cristatum clintonianum D. C. Eaton. Clinton's 



cre.sted shield-fern. — In rich woods near Harbor Beach. 



11. Aspidium marginale (L.) Sw. Evergreen wood-fern. — East of 



Port Austin and on rocky cliffs west of Grindstone City. 



12. Aspidium spinulosum (0. F. Muller) Sw. Spinulose shield- 



fern. — Rich woods, Caseville, Sebewaing, Port Austin, Sand 



