MICHIGAN ACADEMY OF SCIENCE. 
83 
Plate. 
Bryant’s Hardwoods (Beeeli -Maple association) 15. 
Floor of Bryant’s Hardwoods showing Sugar Maple seedlings.... 16a. 
The aspen association east of Pellston 10b. 
An interior view in Bryant’s Hardwoods IT. 
Pteris aquilina in the Aspen association 18. 
Pines in the aspens lb. 
Burnt-out humus in a cedar bog 20a. 
A burn in a cedar bog 20b. 
A burn in a cedar bog 21a. 
Birches on shore of Douglas Lake 21b. 
ANNOTATED LIST OF SPECIES. 1 
Thallophyta (Algae and Fungi). 
Chara sp. 190. 3 Besides characterizing an association it occurs in all 
the strictly aquatic associations. 
Cladonia rangiferina 274. Sandy ground in the aspen assoc. 
Cladonia spp. In the aspen assoc, and in the cedar bogs. Other lichens 
were observed but were not determined. 
Bryophyta (Liverworts and Mosses). 
Marchantia polymorpha L. 289. Abundant in places in the cedar bogs. 
Sphagnum spp. Very abundant in the Chamaedaphne assoc, and occurring 
also in tamarack and cedar bogs. 
Polytrichum sp. 294. Fairly abundant in cedar bogs. 
Other species of mosses were, observed but were not determined. 
Pteridophyta (Ferns and Fern Allies). 
Polypodiciceae (Fern Family.) 
Phegopteris dryopteris (L) Fee. Oak Fern. 74, 151. Locally abundant 
in cedar bogs. 
Adiantum pedatum L. Maidenhair. 478. In maple woods along Burt 
Lake. 
Pteris aquilina L. Bracken. 5. Very abundant in the aspen assoc, and 
of quite general distribution in other associations which permit it 
sufficient light. 
Asplenium filix-femina (L.) Bernh. Lady Fern. 56, 469. Local in maple 
woods, but especially in cedar bogs. 
Aspidium thelypteris (L.) Sw. Occurs in boggj^ ground associations but 
especially in the Iris assoc. 
Aspidium noveboracense (L.) Sw. 83, 451. Scarce, occuring in cedar bogs. 
Aspidium goldianum Hook. Collected by Prof. F. Smith and Mr. Quick. 
Aug. 18, 1911 in beech-maple woods. 
Aspidium spinulosum (0. F. Muller) Sw. 163, 167. In the beech-maple 
assoc. 
Cystopteris bulbifera (L.) Bernh. 472. Local in hardwoods along west 
shore of Burt Lake. 
Cystopteris fragilis (L.) Bernh. 452. Local in hardwoods along Burt Lake. 
Hue nomenclatur of Gray’s Manual, 7th edition, theliatest taxonomic work, is used throughout 
this list. 
Collection numbers of the season of 1911. 
