39° Muhlenbcrgia, Volume 2 



DiANTHUS L. Pink, carnation. 



X DiANTHUS Armeria L. I. Dei)tf(jrd pink. Infrequent 

 in fields and roadsides, Mt. Tabor, near Lents, etc. Advenlive 

 from Europe. May to August. Pink with whitish dots. 



X DiANTHUS barbatus L. 4. Sweet William. Garden 

 escape infrequent in fields and waste places. Introduced from 

 Europe. Ma}- to August. Pink or whitish. 



Paronychia [Tourn.] Adans. Whitlow-wort. 



X Paronychia chilknsis DC. 4. Ciiile Whitlow-wort. 

 Prostrate, perennial weed, not unconiiuon on ballast grounds, 

 roadsides and waste places-. Lower Albina, Vancouver, etc. In- 

 troduced from Ciulc. May to July. White. 



NYMPHAEACEAE DC. Water Lily Family. 

 Brasknia Schreb. Water shield. 

 Brasenia Schreberi Gniel. 4. Water shield. In ponds, 

 Sauvie's island. June to August. Dull purple. 



Nymphaea [Tourn.] L. Water lily. 

 Nymphaea poeysepaea (Engelm.) Greene. 4. Western 

 pond lil}-. Common in pond>, Tiie Oak-;, Sellwood, Oak Grove, 

 Oswego lake, etc. May to September. Yellow. 



CERATOPHYLLACEAE Gray. Hornwort Family. 



Ceratophyleum L. Hornwort. 

 Ceratophyleum demersum L- 4. Hornwort. In ponds. 

 East Portland, etc. May to July. Greenish, minute. 



RANUNCULACEAE Jussieu. Buttercup Family. 

 Ranunculus [Tourn.] L. Buttercup. 

 Ranunculus reptans L. 4. Creeping spearwort. Swales 

 and wet places, Oswego, etc. May to July. Glossy yellow, small. 

 Ranunculus unalaschensis Besser. 4. Trailing butter- 

 cup. Rather rare in wet places about Portland. June to Aug- 

 u.st. Glossy yellow, small. 



Ranunculus Bolanderi Greene. 4. Bolander's buttercup. 



Swales, wet places and rill banks, Oswego lake and near 



Forest Grove. Not uncommon in Tualatin valley. May to July. 



Glossy yellow. 



