Contributions to the Botany of Michigan 7 



Sparganium diversifolium Graebner var. acaule 



(Beeby) Fernald and Eames 



Stemless Bur-reed 



The stemless bur-reed, given as a variety in Gray and as a species in 

 Britton and Brown, has apparently been generally overlooked by Michigan 

 botanists. There seems to be no published record, but the writer has found 

 the species in several localities. In 191 1 it was discovered on Harsen's Is- 

 land in the southern part of St. Clair County, growing in abundance in 

 muddy places and shallow water. In 19 14 it was noted as abundant about 

 Vermillion in Chippewa County, and in 19 15 it was found to be common in 

 Schoolcraft County. The plant very probably occurs throughout the state. 



Anthoxanthum odoratum L. 

 Sweet Vernal Grass 



This grass seems to have been naturalized from Europe. The habits 

 and range are given by Gray as "Meadows, pastures and waste places, espe- 

 cially eastw." ; and by Britton and Brown as "In fields and meadows through- 

 out the whole of North America." The distribution given by the Michi- 

 gan Flora is "Ionia ; Grand Rapids, Coleman Cat. ; well established in the col- 

 lege lawn. Rare." This would indicate that it is not at all common in the 

 state. The writer saw it in abundance on and near the bank of Echo Lake, 

 a small body of water in the woods of Grand Island, near Munising, Alger 

 County, in 19 14. It had the appearance of a native wild plant, but there 

 are a number of buildings on the bank, and the lake is often visited. 



Aristida oligantha Michx. 

 Few-flowered Aristida, Ant-rice 



The habitat and range of this grass are given in Gray as "Dry sterile soil 

 N. J. to Neb. and southw." ; in Britton and Brown as "Dry soil ; New Jersey 

 to Nebraska, and Texas." It is not listed in the last Michigan Flora. To 

 the writer's knowledge it has persisted in dry open ground near the city of 

 Port Huron for about ten years. 



Calamagrostis hyperborea Lange 

 Northern Reed-grass 



The habitat and range of the northern reed-grass is given in Gray as 

 "Moist meadows and calcareous cliffs, Greenl. to Alaska s. to e. Que., n. Vt., 

 'Pa.', Minn., and the Rocky Mts." ; in Britton and Brown as "Meadows and 

 swamps, Greenland to Alaska, south to Pennsylvania, Colorado and Cali- 

 fornia." It is not Hsted in the Michigan Flora. In 1916 the writer observed 

 the species to be very abundant in a meadow-like opening on the high bank 

 of Lake Superior near Sable Banks, west of Grand Marais, in Alger County. 



