248 MICHIGAN SURVEY, 1908. 



360. Aster -ptarmaooides (Nees) T. & G. Upland White Aster. 

 Fairly common on small rock island, and as a rock shore crevice plant, 

 the only crevice aster. 1, 1; IV, 1; V, 2. 



361. Aster hirsuticauHs Lindl. Hairy-stemmed Aster. Woods along 

 Washington Creek; one locality only. 



362. Anaphalis margaritacea (L) B. & H. Large Pearly Everlasting. 

 Dry soil,- and rock clearings along Greenstone (McCargo trail). II, 3, 

 and on Washington Club grounds. 



363. Artemisia canadensis Michx. Canada Wormwood. Crevice 

 plant along rock shore, and on small islands in Rock Harbor. I, 1; V, 2. 



364. Senecio halsamitae Muhl. Balsam Groundsel. Common rock 

 crevice plant on Rock Harbor islands, and elsewhere along the rock 

 shore. I, 1 ; III, 1 ; IV, 1 ; V, 2. 



SUMMARY. 



Species of lichens 43 



Species of mosses 38 



Species of Pteridophytes 35 



Species of Spermatophytes 248 



Total 364 



REPEKENCBS. 



Wheeler, W. A. 



1901. Notes on Some Plants of Isle Royale. Minn. Bot. Studies, 2, 

 pp. 619-620. 

 Euthven, A. G. 



1906. Notes on the Plants of the Porcupine Mountains and Isle Boy- 

 ale, Michigan. Rep. Mich, Geol. Survey for 1905, pp. 86-92." 



