88 MICHIGAN SURVEY, 1905. 



Sparganiaceae Agardh. Bur-reed Family. 



20. Sparganium eurycarpum Engelm. In the margin of Washington 

 river near its mouth, II, and about the shores of Lake Desor, VII. 



Gramineae Juss. Grass Family. 



21. Phragmites phragmites (L.) Karst. Reed. Along the margin of 

 Washington river near its mouth, II, and about the shores of Lake Desor, VII. 



Cyperaceae J. St. Hil. Sedge Family. 



22. Carex intumescens Rudge. Along Washington river, II. 



23. Carex retrorsa Schwein. Along Washington river, II. 



24. Carex trisperma Dewey. Along Washington river, II. 



25. Carex tribuloides Wahl. Along Washington river, II. 



Araceae Neck. Arum Family. 



26. Spathyema foetida (L.) Raf. Skunk Cabbage. In alder thickets, 

 along Washington river, II, and Washington creek, IV. 



Juncaceae Vent. Rush Family. 



27. Juncus effusus L. Soft or Bog Rush. Along the shore of Washing- 

 ton river, II. 



Convallariaceae Link. Lily-of-the- Valley Family. 



28. Clintonia borealis (Ait.) Raf. In the forests on the flood-plain of 

 Washington river, II, and on the adjacent ridges, III, VI. 



29. Vagnera racemosa (L.) Morong. Wild Spikenard. In the alder 

 thicket near the mouth of Washington creek, IV. 



30. Vagnera trifolia (L.) Morong. Three-leaved Solomon's Seal. Found 

 commonly in the alder thickets along Washington river, II, and Washington 

 creek, IV. 



31. Streptopus amplexifolius (L.) DC. In the alder thicket along Wash- 

 ington creek, IV. 



32. Salomonia biflora (Walt.) Britton. Hairy Solomon's Seal. In moist 

 places in the coniferous forest, VI. 



Iridaceae Lindl. Iris Family. 



33. Iris versicolor L. Large Blue Flag. In low places about the shores 

 of Lake Desor and on the smaller islands, VII. 



Orchidaceae Lindl. Orchid Family. 



34. Listera convallarioides (Sw.) Torr. On the shores of Siskowit Bay, 

 VIII, and Grace Harbor. 



35. Peramium pubescens (Willd.) MacM. Downy Rattlesnake Plantain. 

 Common in the coniferous forest, VI. 



Salicaceae Lindl. Willow Family. 



36. Populus grandidentata Michx. Large-toothed Aspen. In burnings 

 and on the margin of clearings. Found in the large clearings at Siskowit 



