SUB-CLASS II. DIC01YLED0NES. 189 



C. pruinosa K. Koch, as recognized by Sargent, and should prob- 

 ably be called by that name. Kendallville, N. fork of Boar creek. 



Crataegus macracantha Lodd. Long-spined Thorn. Rather 

 common in thickets. Decorah (Savage), Canoe creek, Moneek. 



Crataegus tomentosa L. Pear Haw. Quite common in thick- 

 ets. Canoe creek, north fork of Bear creek, Hesper. 



/■aim/y S. Drupocea. 



Prunus americana Marsh. Wild Plum. Common in thickets. 

 Decorah, Ft. Atkinson. Also observed at all the stations except- 

 ing Calmar and Moneek. 



Prunus pumila L. Dwarf Cherry. Very rare. Found only 

 on an exposure of St. Peter sandstone near Hesper, with Aronia. 



Prunus pennsylvanica L. f. Wild Red Cherry. Common 

 along borders and in thickets. Hesper, Canoe creek. Also ob- 

 served at Decorah, Bluffton and north fork of Bear creek. 



Prunus virginiana L. Choke Cherry. Locally common, on 

 rocky banks, etc. Decorah. Also observed at Hesper, Canoe 

 creek, both forks of Bear creek, Bluffton and Kendallville. 



Prunus serotina Ehrh. Wild Black Cherry. Common in up- 

 land woods. Hesper, Canoe creek. Also obresved at all the 

 other stations, excepting Calmar. 



Family g. Ccesalpinacece 



Cassia chamaecrista L. Partridge Pea. A common weed, in 

 dry soils. Decorah. etc. 



Family 10. Papilionacece . 



Baptism hracteata Ell. (B. leucophaea Nutt.) Large-bracted 

 Wild Indigo. Open places. (Fitzpatrick.) 



Baptisia leucantha T. & Gr. Wild Indigo. Locally common on 

 rich prairies. Calmar. 



Lupinus perennis L. Wild Lupine. Collected by Holway 

 at Decorah. 



MelUotus alba Desv. White Sweet-clover. A common intro- 

 duced weed. Calmar, etc. 



MelUotus officinalis (L.) Lam. Yellow Sweet-clover. Intro- 

 duced. Less common than the preceding. (Fitzpatrick.) 



Trifolium arvense L. Stone Clover. Introduced. (Fitzpat- 

 rick.) 



Trifolium pratense L. Red Clover. Everywhere escaped 

 from cultivation. Calmar, Hesper, etc. 



