OREGON COAST FLORA 353 



R. mexicanus Meisn. — Beach form plentiful ; typical form not 

 found. 



R. crispus L. — In open ground above the beach. 



R. conglomeratus Murr. — Rare in open ground. 



Polygonum paronychea Cham, and Schl. — Abundant on the ex- 

 tensive dune area at the mouth of Alsea bay ; also found near 

 Yachats and Seal Rocks. 



P. aviculare L. — Common in open pastured places ; also on 

 beaches. 



P. persicaria L. — Frequent at Seal Rocks along streams. 



Chenopodiaceae. 



Salicornia pacifica Steudl. — Abundant in salt marshes about the 

 bays. Rare on the beach. 



Atriplex patula L. var. littoralis Gray. — Scarce, along Yaquina 

 bay near Newport. 



Chenopodium humile Hook. — Scarce, on high beaches. 



C. album L. — Scarce, on high beaches. 



C. hybridum L. — Scarce, in open places about Newport. 



Nyctaginaceae. 



Abronia latifolia Esch. — Plentiful everywhere on sandy beaches, 

 extending down to a little below the upper limits of high winter 

 tides; especially plentiful about the mouth of Alsea bay. 



Portulacaceae. 



Montia sibirica L. — Scarce in low forest area; abundant in 

 larger forest. 



M. parviflora (Doug.) Howell. — Abundant above the beach. 



M. parvi folia (Moc.) Greene. — Common on rocks in protected 

 places. 



Caryophyllaceae. 



Pentacaena ramosissima (Wein.) Hook & Arn. — Plentiful just 

 above the beach at the mouth of Yaquina Bay. 



Spergularia rubra (L.) J. and C. Presl. — Common in open places, 

 in some places well down on the beach. 



S. sparsiflora (Greene) Nels. — Scarce along the beach; more 

 plentiful in salt marshes about the bays. 



S. macrotheca (Hornem.) Heynh. var. scariosa (Britt.) Robins. 

 — Scarce on seaward faces of shore bluffs where sometimes wet by 

 spray; Seal Rocks. 



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