32 



by Piper and Beattie may also be of interest, as showing the 

 rapidity with which many species are spreading. It will be 

 understood that, as in the first list, all my specimens have been 

 collected in Oregon. The range assigned by the authors is given 

 first in each case. 



1. Ceropteris triangularis (Kaulf.) Underw. "Crevices of 



rocks, mostly near the sea-coast . . . more common on 

 the Oregon coast." On rocky hillsides near Turner, in 

 the Willamette Valley. 



2. Equisetum littorale Kiihlewein. "Shawnigan Lake, Van- 



couver Island, Macoun." "Agassiz, B. C, Macoun." 

 Abundant in marshy ground in Lake Labish. 



3. Phalaris minor Retz. "On ballast, Nanaimo, Vancouver 



Island, Macoun.'' On ballast at Linnton. 



4. Gastridium lendigerum (L.) Gaud. "Umpqua Valley and 



southward, introduced. Perhaps not in our limits." 

 Common about Eugene. 



5. Festuca aristulata (Torr.) Shear. "Upper Willamette Valley 



to California." About Eola, Polk Co., in the central 

 valley. 



6. Festuca rubra L. "Mostly along the sea-sho/e." Not un- 



common on gravelly prairies about Salem, appearing as 

 if indigenous, and common on lawns, where it is plainly 

 introduced. 



7. Poa multnomae Piper. "On rock cliffs along the Columbia." 



On rocks in the gorge of Silver Creek, above Silverton, 

 Marion Co. 



8. Hordeum jubatum L. " In salt marshes." Common on 



gravelly prairies about Salem. 



9. Carex verecunda Holm. "Known only from Mount Hood, 



Oregon." On grassy shaded roadsides in the hilly country 



fifteen miles east of Salem. 

 ID. Carex athrostachya Olney . "Rare in our limits but common 



east of the Cascade Mountains. Reported from Victoria, 



British Columbia, Macoun." Common along the muddy 



shore of the Willamette at Salem. 

 II. Carex Hindsii Clarke. "Along the ocean coast, Vancouver 



