XXXV. NOTES ON SOME PLANTS OF ISLE 
ROYALE. 
W. A. WHEELER. 
During August, 1900, I spent about two weeks at Tobin Har- 
bor on the eastern end of Isle Royale, Mich. At this time I 
made a collection of plants numbering about 150 species, of 
which the following seem to be worthy of note. 
Botrychium lunaria (L.} Sw. Schrad. Journ. Bot. 2: 110. 1800. 
Rare in moist woods and thickets. 
Botrychium virginianum (L.) Sw. Schrad. Journ. Bot. 2: 111. 
1800. 
Prothallia and young sporophytes were collected in a thicket 
near the shore of the lake on Aug. 30. Previous collections of 
the prothallia of this species have been made only by Professor 
Douglas H. Campbell at Grosse Isle, Michigan, in 1893 and by 
Professor E. C. Jeffrey at Little Metis, Quebec, Canada, in 
1895. 
Woodsia ilvensis (L.) R. Br. Trans. Linn. Soc. 11: 173. 1812. 
Very common on exposed rocks along the lake shore. 
Dryopteris fragrans (L.) Scnort, Gen. Fil. 1834. 
Common on exposed rocks with Woodsza tlvensis. 
Cryptogramme acrostichoides R. Br. App. Franklin’s Journ. 
967.1823. 
Infrequent on rocks. This is probably one of the rarest ferns 
of the Great Lake region. 
Lycopodium selago L. Sp. Pl. 1102. 1753. 
Frequent on rocks near the shore. 
Selaginella selaginoides (L.) Linx, Fil. Hort. Berol. 158. 1841. 
Frequent on moist, shaded rocks near the water’s edge on the 
shore of the harbor. 
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