7G CATALOG OF PLANTS. 



63. Elodea canadensis Michx. Water- weed. — In Rush Lake, coves 



of Pigeon River, and near the fishery, dock, Stony Island. 



64. Vallisneria spiralis L. Wild celery. Tape grass. Eel grass. — 



Abundant in Rush Lake and the coves of Pigeon River. 



65. Andropogon scoparius Michx. Broom beard-grass. — Frequent 



throughout the sand dune region, mostly growing in tufts. 



66. Andropogon furcatus Muhl. Forked beard-grass. — Frec^uent on 



and near sand dunes. 



67. Sorghastrum nutans (L.) Nash. Indian grass. Wood grass. — 



Frequent on light sandy ground and on fixed dunes. 



68. Digitaria sanguinalis (L.) Scop. Crab grass. — A common weed 



throughout the sand region. "At Port Crescent in drifting 

 sand where it was getting a foothold and may help hold the 

 sand in place." Davis. 



69. Panicum capillare L. Old- witch grass. — A common weed 



throughout the sand region, especially in adjacent gardens 

 and fields. 



70. Panicum miliaceum L. European millet. — Cultivated and 



occasionally escaping near villages. 



71. Panicum virgatum L. Switch grass. — Occasional in tufts 



throughout the sand district. "On Charity Islands in sandy 

 soil." Davis. 



72. Panicum depauperatum ]\Iuhl. Starved panicum. — Occasional 



on sandy ground and sand dunes. 



73. Panicum lindheimeri Xash. Lindheimer's panicum. — On open 



sandy ground at Bayport, Sebewaing, and Port Austin. 



74. Panicum meridionale Ashe. Panicum. — Along the railroad 



near Sebewaing. 



75. Panicum tsugetorum Xash. Hemlock panicum. — On sandy 



ground at Bayport. 



76. Panicum scribnerianimi Xash. Scribner's panicum. — On sandy 



ground at Sand Point and near Rush Lake. 



77. Panicum xanthophysum Gray. Slender panicum. — On light 



sandy ground at Sand Point and Bayport. 



78. Panicum latifolium L. Porter's panicum. — On sandy ground 



and shaded sand dunes at Sand Point, Bayport. and Port 

 Austin. 



79. Echinochloa crus-galli (L.) Beauv. Barnyard grass. — A com- 



mon weed on damp ground and in waste places throughout 

 the sand dune region. 



80. Setaria glauca (L.) Beauv. Foxtail. Pigeon grass.— A weed in 



gardens, about fish shanties, country dwellings and in fields. 



