362 Miihlenbergia, Volume 2 



Agrostis L. Bent grass. 



Agrostis AKCi'iVALViS Tiiu. Slender bent grass. Infre- 

 quent on moist slopes, Mt. Scolt. June to August. 



X Agrostis uepricssa Vasey. 4. Creeping bent grass. 

 Not nticommou on moist sandy banks about Biidgeton, Colum- 

 bia Beacli, etc. It here serves a useful purpose as a sand binder. 

 June to September. 



Agrostis alba L. 4. Red lop. A valuable forage grass 

 common in waste places, Albina and East Portland. Natural- 

 ized from Kurope here, but native norlluvard. June to August. 



Agrostis Kxarata Tiin 4. {A. aspen'/olia Trin.) North- 

 ern red lop. Infrequent in nudist gteunid. I{a>.t Portland, Albina, 

 Columbia Beach, Ha)den island, etc. A fairl)good forage grass 

 and relished by stock. June-, July. 



Agrostis MICROPHYLLA vSteud. i. Small leaved l)ent grass. 

 A small annual iufrtquenl in open woods near Oswego. June, July 



Agrostis dikgoknsis Vasey. 4. Leafy bent grass. A slen- 

 der perennial occuiing spaiingly on rocky slopes, Elk Rock. 

 June to August. 



Agrostis hyemaus (Walt ) B. S. P. {A. scabra of How- 

 ell's Flora.) Rough hair grass. A slender perennial, on sandy 

 river banks near Brocjklyn. June to August. 

 Cinna L. Indian reed. 



Cinna latifolia (Trev.) Griseb. 4. {C. pendtila oiltiow- 

 ell's P'lora.) Slender wood reed grass. A slender perennial, in 

 uioist open wc;ods near Oswego. July to September. 

 Calam agrostis Adans. Reed glass. 



Calamagrostis Howellii Vasey. 4. Howell's reed grass. 

 Densely lufted perennial on cliffs at Bridal Veil. July to Sept. 



Calamagrostis canadensis Bcanv. 4. Blue joint grass. 

 Fairly common perennial in wet ground, Columbia slough. 

 June to August. 



Beckmannia Host. Slough grass. 



Beckmannia erucaeformis (L.) Host. 4. Slough grass- 

 Tall, erect perennial, common in ditches at Oswego and wet 

 places about Oswego lake. May to August. 



