223 



65. * Dactylis glomcnita L. A very common escape to fields 



and roadsides. 



66. * Poa annua L. Extremely common along waysides, in 



cultivated fields and in lawns. F'lowers almost continu- 

 ously throughout the year. 



67. * Poa compressa L. Not infrequent in sandy soil, 



along the Willamette. 



68. * Poa pratensis L. Our commonest lawn-grass, and 



escaped to meadows and pastures everywhere. 



69. Poa nervosa (Hook.) Vasey. A mountain species that 



has been found in our limits only at Silver Creek Falls in 

 the Cascades, on moist rocky banks. 



70. * Poa trivialis L. Not infrequent in damp shady places. 



71. Poa triflora Gilib. Common along streams in low ground. 



72. Poa leptocoma Trin. In damp thickets at Silver Creek 



Falls. 



73. Poa scabreUa (Thurb.) Benth. Not infrequent in dry 



gravelly soil about Salem (X). 



74. Poa Hoivellii Vasey & Scribn. Not uncommon in dry 



coniferous woods. 



75. Poa miiltnomae Piper. A grass of the Columbia Gorge, 



but collected on rocks in the bed of Silver Creek, one mile 

 above Silverton (X). 



76. Festuca octoflora Walt. Rather scarce in dry open places 



near the Willamette. 



77. Festuca megalura Nutt. Very abundant in dry soil along 



roads and in waste places everywhere, appearing as if 

 introduced. 



78. * Festuca myitros L. Has been found only at one station, 



on railroad tracks at West Salem, Polk County. 



79. * Festuca bromoides L. Occasional along roadsides and 



railroad tracks. 



80. Festuca caUfornica Vasey. On dry hillsides at Eola, Polk 



County, not observed elsewhere. 



81. * Festuca rubra L. Occasional on lawns about Salem, 



where plainly introduced'; but the form on gravelly prairies 

 appears to be native. 



