MICHIGAN ACADEMY OF SCIENCE. 173 



Trifolium pratense L. Red Clover. — Common in fields, meadows, and 

 open woods. Large farms of this species, it seems, have pedunculate heads, 

 and have perhaps been erroneously identified as T. medium L. Zigzag 

 Clover. 



Trifolium repens L. White Clover. — Common everywhere, especially in 

 pastures. 



Trifolium hybridum L. Alsike Clover. — Common everywhere as an escape 

 from cultivation. 



Trifolium agrarium L. Yellow Clover. — Occasional on roadsides and along 

 railways. 



Trifolium procumbens L. Low Hop Clover. — Occasional in freight yards 

 and along railways. Persisting and spreading. 



Melilotus officinalis (L) Lam. Yellow Melilot. — Occasional in cultivated 

 and waste places. 



Melilotus alba Desr. White Melilot. Sweet Clover. — Very common on 

 roadsides in hard clay. Becoming a common and rank weed in waste places. 

 Said to be a good fodder plant, and one of the best for bees. 



Medicago sativa L. Alfalfa. — Occasional on roadsides and along railways. 

 Often cultivated in this locality and many fine fields of it noticed. 



Medicago lupulina L. Black Medic. — Common in waste places and fields. 



Petalostemum purpureum (Vent.) Rydb. Violet Prairie-clover. — About 

 the grain elevators at Point Edward. From the western prairies. 



Robinia pseudo-acasia L. Common Locust. — Cultivated as an orna- 

 mental tree and escaping to banks, fence rows, and waste places; subject to 

 attack and destruction by boring insects. 



Astragalus canadensis L. Carolina Milk Vetch. — Occasional in damp 

 ground along streams. Noticed in particular on the delta islands of St. 

 Clair River. 



Astragalus neglectus (T. and G.) Sheldon. Cooper's Milk Vetch. — 

 Noticed in al)undance near Rock Glen. Newton Tripp. 



Desmodium nudifiorum (L.) D. C. Naked-flowered Tick-trefoil. — Fre- 

 quent in dry woods and thickets. 



Desmodium grandifiorum (Walt.) DC. Pointed-leaved Tick-trefoil. — 

 Common in rich open woods and thickets, and on shaded banks of streams. 



Desmodium rotundifolium (Michx.) DC. Prostrate Tick-trefoil. — In poor 

 and sand}^ ground at Blackwell Station. T. C. Wheatley. Not rioticed 

 elsewhere. 



Desmodium bracteosum (Michx.) DC. Large-bracted Tick-trefoil. — Oc- 

 casional in dry woods and thickets. Newton Tripp. 



Desmodium dillenii Dark Dillen's Tick-trefoil. — Frequent in dry open 

 woods and thickets, especially near the Lake Huron shore. 



Desmodium paniculatum (L.) DC. Panicled Tick-trefoil. — Frequent and 

 usually in open dry ground. 



Desmodium canadense (L.) DC. Canadian Tick-trefoil. — Common in 

 open woods and on banks of streams. Abundant on the delta islands of St. 

 Clair River. 



Desmodium rigidum (Ell.) DC. Rigid Tick-trefoil. — Occasional in dry 

 and sandy ground. 



Desmodium marilandicum (L.) DC. Small-leaved Tick-trefoil. — Occa- 

 sional in dry and sandy ground. Noticed in particular near Blackwell Sta- 

 tion. T. C. Wheatley. 



Lespedeza frutescens (L.) Britton. Wand-like Bush Clover. — Occasional 



