TUSCOLA COUNTY 173 



Milium effusumL. Millet grass. In rich woods near Murphy's Lake. 

 Probably occurring throughout. 



Oryzopsis pungens (Torr.) Hitchc. Dry and sandy ground. Frequent 

 throughout. 



Oryzopsis asperifolia Michx. White-grained mountain rice i : 

 quent in dry woods. Noticed in particular on the dry shaded hillsides 

 about Murphy's Lake. "Dry woods in Cass River valley. Sand ridg 

 Akron Township." C. A. Davis. 



Stipa spartea Trin. Porcupine grass. Noticed as occasional on low 

 sand ridges in the northeast part of the county. " Sandy ridges i o \ V i sner 

 Township near Bay Park." C. A. Davis. 



Muhlenbergia mexicana (L.) Trin. Meadow muhlenbergia. Noticed 

 by Prof. C. A. Davis near Unionville. Probably frequent throughout. 



Muhlenbergia racemosa (Michx.) BSP. Marsh muhlenbergia. Com- 

 mon in damp places, especially on borders of marshes with other grasses 

 and sedges. 



Brachyelytrum erecium (Schreb.) Beauv. Brachyelytrum. "Dry wood- 

 lands throughout eastern part of county." C. A. Davis. 



Phleum pratense L. Timothy. One of our best cultivated gr. 

 Common along roads, in fields, and often a weed in gardens. 



Alopecurus geniculatus aristulatus Torr. Floating foxtail. Frequent 

 in very wet places, especially in the vicinity of the small lakes. 



Sporobolus cryptandrus (Torr.) Gray. Sand dropseed. Frequent on 

 low sand ridges and in sand along the Saginaw Bay beach. 



Agrostis alba L. Red top. Common in damp and frequent in dry 

 sand}^ ground. Very variable in size and general appearance. 



Agrostis hyemalis (Walt.) BSP. Rough hair-grass. Occasional and 

 in spots abundant on and near sand ridges, especially near the Saginaw 

 Bay shore. " Islands in the prairies, Akron Township. ' ; C. A. I lavis. 



Agrostis perennans (Walt.) Tuckerm. Thin grass. Usually in damp 

 partially shaded places, occasional in moist open ground. 



Calamovilfa longifolia (Hook.) Hack. Long-leaved reed-grass. ( ><•- 

 casional in sand, usually on the middle or upper beach along the Saginaw 

 Bay shore. One of our best shore sand binders protecting mainly the 

 sands from the action of the winds. 



Calamagrostis canadensis (Michx.) Beauv. Blue-joint, grass. Fre- 

 quent and in spots abundant throughout in damp and we1 plac< 

 especially on damp prairie-like ground and about the small laki 



Ammophila arenaria (L.) Link. Sea sand-reed. In sand along the 

 Saginaw Bay shore, found even below the middle bench and acting as 

 one of our best known sand binders, protecting the I. each from the action 

 of waves. "Sand dunes, Akron and Wisner townshi] C. A. Davis. 



Cinna arundianacea L. Wood reed grass. In damp shaded ground 

 near Murphy's Lake. Very probably frequent throughout. 



