Fcbruaiy 15, 1917 ■ • 391 



Ranunculus scklkratus L. r. Ditch buttercup. (R. ere- 



mogencs.') Borders of aeslival-recedinf^ ponds near Cohnnbia 



•Beach; infrequent. June to September. Small, pale j^lcssy yeliou'. 



. Ranunculus occiDivNTALLS Nutt. 4. Western buttercup. 

 On dry ridges, B irnes road, Cornell road, etc. April to June. 

 Glossy yellow, showy. 



Ranunculus Greenki Howell. 4. Woodland buttercup. 



In coniferous woods, Goldsmith's AdVlitiou, Council Crest, 

 etc, April, May. Pale glossy yellow, sniall. 



Ranunculus Bong.\rdi Greei'ie. 4. Bougard's buttercup. 

 {JR. DoNgiash.) Common in moist copses and along .stream banks, 

 Fulton, Oswego. Swan island, eic. April, May. Pale gloss}- yel- 

 low, small. 



Ranunculus oreganus (Gray) Howell. 4. Oregon butter- 

 cup. Moist ground, Swan island, Ross island, etc. March to 

 May. Glossy yellow. 



Ranunculus repEns L. 4. Creeping buttercup. Common 

 in moist lawns, vacant lots and roadsides throughout Portland. 

 In ours the leaves are blotclied or spotted with pale green. Nat- 

 uralized from Europe. April to June. Glossy yellow. 



Ranunculus orthorhynchus Hook. 4. Purple-back but- 

 tercup. In wet places. North Portland, Fulton, Oswego, St. Hel- 

 ens road, etc. April, May. Glossy yellow, purple outside. 



Ranunculus muricatus L. i. Spiny fniited buttercup. 

 Rather rare in ditches and wet places about the city. Natural- 

 ized from Europe. Does not appear to spread rapidly here. May 

 to July. Glossy yellow. 



Ranunculus Cymbalaria Pursh. 4. Sessile crowfoot. In- 

 frequent on borders of ponds near Columbia Beach and about the 

 head of Hayden island. June to September. Small, glossy yellow. 

 Batrachium S. F. Gray. Water crowfoot. 



Batrachium trichophyllum (Chai.x.) Bossch, 4. White 

 water crowfoot. In ponds and ditches about the city. May to 

 September. Wliite. 



TrautvETTERIA F. & M. False bu^bane. 



