SUB-CLASS II. DICOTYLEDONES. 187 



Rubus nigrobaccus Bailey. {R. villosus Ait.) Blackberry. 



Common in thickets. Decorah. 



Rubus procumbens Muhl. (R. canadensis L.) Dewberry. In 

 sandy or rocky soil, not common. Decorah, Hesper. The spec 

 imens from the latter locality have an unusually large number 

 of leaves having I » 1 1 1 one large leaflet. This form was reported 

 by the writer under the name of R. baileyanus* a species which, 

 so far as known, does not occur in Iowa. 



Drymocallis arguta (Pursh.) Ryd. {Potentilla arguta I'ursh.) 

 Tall Cinquefoil. On dry prairie and hills, locally common. Ft. 

 Atkinson. 



Basiphora fruticosa (L.) Rydb. (Potentilla fruticosa L.) 

 Shrubby Cinquefoil. Rare. Decorah (Arthur). 



Sibbaldiopsis tridentata (Soland.) Rydb. (Potentilla triden- 

 tata Soland.) Three-toothed Cinquefoil. Very common on the 

 St. Peter sandstone exposures northeast of Hesper. 



Frag aria virginiana Dnches. Wild Strawberry. In open 

 places, locally common. (Fitzpatrick.) 



Fragaria americana (Port.) Britt. (F. vesca L.) Wood 

 Strawberry. Locally common, in rocky places. Decorah (Sav- 

 age), Canoe creek, Ft. Atkinson. 



Potentilla monspeliensis L. (P. norvegica L.) Rough Cin- 

 quefoil. Rather common, on banks and in thickets. Calmar. 



Potentilla canadensis L. Five-finger. Common in dry soils. 

 Moneek, Canoe creek, etc. 



Geum virginianum L. Rough Avens. Moist woods. More 

 common than the preceding at Hesper. 



Geum macrophyllum Willd. Large-leaved Avens. In moist 

 woods. (Fitzpatrick.) 



Sieversia ciliata (Pursh.) Rydb. (Geum triflorum Pursh.) 

 Reported by Fitzpatrick. 



Agrimonia hirsuta (Muhl.) Bick. (A. eupatoria L.) Com- 

 mon in woods. Hesper, etc. 



Rosa blanda Ait. Smooth Wild Rose. Not rare, on shaded 

 banks, etc. Decorah. 



See Trans. IowaHort. Society, Vol. 38, p 

 Proc. Dav. Acad, of Sciences, Vol. X, 1904. 



