26 



35- Carex prairea De\\'ey. Boggy meadow near Chemawa, 

 Marion Co. 



36. Scirpus paludosus A. Nels. In salt-marshes, Seaside, 



Clatsop Co. 



37. Juncus patens Mey. Not uncommon in low ground about 



Salem. 



38. Juncus uncialis Greene. In low meadows in Lake Labish, 



near Chemawa. 



39. Humulus Lupulus L. Our commonest field crop, and a 



frequent escape to roadsides and thickets throughout the 

 Willamette Valley. 



40. Cannabis sativa L. On refuse-heaps about Salem. 



41. Chenopodium ambrosioides L. On sand-bars along the 



Willamette at Salem. 



42. Chenopodium Botrys L. Becoming abundant along the 



Willamette near Salem. 



43. Chenopodium glaucum L. On sand}' shore of the Columbia 



opposite Vancouver, Wash. 



44. Corispermum hyssopifoliiim L. With the last. 



45. Sedum acre L. Well established on waste ground, Salem, 



46. Agrostemma Githago L. In grain-fields, Marion and Polk 



Cos., and on the border of a thicket at Salem. 



47. Silene dichotoma Ehrh. On gravelly shore of North San- 



tiam River, Detroit, Marion Co. 



48. Silene campanulata Wats., var. Greenei Wats. Rocky sum- 



mit of Spencer's Butte, near Eugene. 



49. Saponaria officinalis L. Abundant in sandy soil along the 



Willamette from Eugene to Salem. 



50. Saponaria Vaccaria L. In railroad yards, Portland. 



51. Sagina procumbens L. Rocky border of garden at Elk 



Rock, Multnomah County. 



52. Cerastiiim nutans Raf. In thickets. Falls City, Polk Co. 



53. Arenaria Douglasii Fenzl. Rocky woods on Spencer's 



Butte, Eugene. 



54. Ranunculus arvensis L. In wet meadow near Chemawa, 



Marion Co. 



55. Ranunculus biilbosus L. In vacant yard, Salem. 



