454 



WEED FLORA OF IOWA 



Figure 810A Figure 310B Figure SIOC 



Fig. 310. A, Dalea (.Dalea alopecuroides) . B, seed of Fink Dalea iDalea 



laxiflora). C, seed-pod of the same species. 



(A, drawing by L. R. Collins ; B and C, by C. M. King.) 



Pink Dalea {Dalea laxiflora Pursh.). 



Seeds one-tenth in. in length, generally triangular, somewhat 

 kidney-shaped, one end projecting beyond sac, which is circular 

 and has two micropilar processes on one side ; yellowish or brownish 

 in color ; leaves have pellucid dots. This should enable one to recog- 

 nize the impurity. Occasionally found in clover seed. ' 



Stemless Loco Weed (Oxyiropis lamberti Pursh.). 



Pods coriaceous, silky pubescent, cylindrical; seed flattened, 

 brown, about 2 mm. broad and 2.5 mm. long. 



Figure SUA 

 Fig. 311 



Figure SUB 



Figure 311C 



A, Stemless loco Weed (Oaiytropis lamierW) . B, Bush Clover 

 ILespedesa capitata), pod and seed. 

 (Drawings A, by Ada Hayden ; B, by Charlotte M. King.) 



Bush Clover (Lespedeza capitatm Michx.). 



Pod ovate-oblong, one-sixth in. in length, sessile, 1-ovuled, pu- 

 bescent, brownish, reticulated, indehiscent, seed scarcely kidney- 

 shaped, one-tenth in. in length, greenish to purplish. 



