11* 



5. Arabls hlrsnta (L«) Seep* 

 Scientific name: 



Turrltls hlrsuta L. Sp. PI. 666. 1753* 



AraMs hlrsuta Scop. Fl. Ca±n. Ed. 2, 

 2} 30. 1772. 

 Common name: 



Hairy rock -cress. 

 Dlstrlliutlon and habitat: 



NatlTe; southern Canada; U. S., especially north- 

 em party also In Europe and Asia. ^Cliffs and rocks"; 

 ^gravelly shores and calcareous rocks". 



PI. of Mon. Co.: "Rare. Rooky bank of Genesee 

 R. below lower falls. "PI. Buf. Vlc: "Rare"; 2 stat- 

 ions. C. F.: frequent. Fall Cr.; Enfield ravine; Six 

 Mile Cr.j "Narrows". Lakeshore ravines. Loo. Herb.; 

 fall Cr- ravine; Burdlck*s Gleny Lansing; near Syracuse. 



Collected as follows :- 



fall Or. ravine (2 spec* 1911 and 1912). 

 Diagnosis : 



The pronounced hairiness of the f small leaves in- 

 dicates the species at once> as the leaf -form and strict 

 habit do the genus. 

 Variation : 



C* F. mentions "small thin-leaved specimens, re- 



