

ion Tin: AMERICAN MIDI. AND NATURALIST 



Arabis dentata T. & G. Toothed Rock-err 



Wooded ravines. Occasional. May 10. 

 Arabis hirsuta (L.) Scop. Hairy Rock-cress. 



Meadows and roadsides. Frequent. 

 Arabis canadensis L. Sickle-pod. 



Wooded banks of ravines. Frequent. May 15. 

 Conringia orientalis (L.) Dumort. Hare's-ear Mustard. 



Manhattan. Occasional along railroad. May 20. 



Capparidaceae. Caper Family. 



Polanisia trachysperma T. & G. Clammy Weed. 

 Gravelly soil. Rare. 



Penthoraceae. 



Penthorum scdoides L. Ditch Stonecrop. 

 River banks. Common. July 5. 



Grossulariaceae. Gooseberry Family. 

 Ribes missouriensis Nutt. Wild Gooseberry. 



Woods and hillsides. Common. Apr. 10 (10). 

 Ribcs aureum Pursh. Golden Currant. 



Manhattan. Occasional. Apr. 5 (4). 



Platanaceae. Planetree Family. 

 Platanus occidentolis L. Buttonball. Planetree. Commonly 

 called Sycamore. 



Woods. Common. Apr. 30. 



Rosaceae. Rose Family. 

 Rubus nigrobaccus Bailey. Blackberry. 



Occasionally escaped from cultivation. May 20. 

 Rubus occidentalis L. Black Raspberry. Hillsides. Frequent. 



May 15. 

 Fragaria virginiana Duchesne. Wild Strawberry. 



Low prairies and woods. Common. Apr. 13 (13). 

 Potentilla monspeliensis L. Rough Cinquefoil. 



Fields. Common. 

 Potentilla pentandra Engelm. Five stamened Cinquefoil. 



Fields. May 20. 

 Potentilla paradoxa Nutt. 



Manhattan. River banks. May 25. 

 Geum canadense Jacq. White Avens. 



Woods and thickets. Common. June 13 (17). 



