360 Miiblenbergia, Vohinie 2 



carp into the lower Colniubia nnd its tributaries, however, has 

 lesnltcd in the ])laiit bti 11 jr almost extt 1 iniiiated in this section, 

 while the draining- of vhalhnv lakes snch a< Lake Labish, Marion 

 county, and Wapato lake, Yamhill county, for farming purposes, 

 has been equally destructive to the species in other localities. 



The followincr qnotation from the Orogonian of April 14, 

 1 86 J, shows how the Chinese in Poitland appieciated the tubers 

 of this plant fifty years ago: 



"Wapatos — The kloochmen and Siwashes in this vicinity 

 are just now in their clement, the se.iscn having arrived for dig- 

 ging wapatos which ihey baittr to the Celestial citizens for a 

 fair price. The tiade is said to have been carried on very ex- 

 tensively between thtni and tl c al-original jiopulation during 

 the past week." July to Se|);ember; white. '' 



POACEAE R. Br. Grass Family. 



PASPAI.UM L. 



Paspai^um distich um ly. 4. Kr.ot gras.s. Moist sandy 

 ground, Columbia slough. This g-ass is nalivein the southeast- 

 ern states to California, but introduced along the banks of the 

 lower Columbia n\er in Oregon and Washington. July, August. 

 Panicum L. Panic gras.s. 



Panicum capii^i^are L. I. Witch grass. In fields, yards 

 and cultivated grounds around Poitland. June to September. 



Panicum Scribnkrianum Nash. 4. Scribner's panic grass. 

 On sandy hillsides above Inaian-Poul.son IvUmber Co.'s mill and 

 near St, John's, Brooklyn, etc. June to August. 

 EcHiNOCHLOA Beauv. 



EcHiNOCHLOA Crus GALLi (L.) Beauv. I. Barnyard grass. 

 {PaiiiciiJii Cms gain o{ Howell's Flora.) In yards, fields and 

 waste places around Pi. r. land. Naturalized fiom Europe. Grows 

 freely in moist, rich groimd, but in lawns and fields is continu- 

 ally crowded out by other grasses. June to September. 

 Chaetochloa Scribn. Bristly foxtail. 



Chaetochloa viridis (L.) Scribn. i. Green foxtail. In 

 yards and fields around Portland. Naturalized from Europe. June 

 to August. 



