April 1, 1916 iTi 



IXIACP^AE Ecklon. Iris Family. 

 Iris [Toiirn.] L. Flag. 

 Iris TKNAX Dougl. 4. Purple flag. Very cpmt^xon in fields 

 and roadsides, Portland Heights, East Portland, Mt. Tabor, Mt. 

 Scott, etc. March to May; purple, rarely white. 



SiSYRiNCHiUM L. Blue-eyed grass. 

 SiSYRiNCHlUM HESPKRIUM Bickuell. 4. Western blue-eyed 

 grass. {S. bellum Wats, as to, our plant.) Fields and roadsides, 

 East Portland, Happy Hollow road, Fulton, etc.; not uncommon. 

 April, May: purple with yellow center. 



SiSYRiNCHiUM IDAHOENSE Bicknell. 4. Idaho blue-eytd 

 grass. L,o\v ground and grassy meadows near Vancouver. April 

 to June; violet blue with yellow center. 



X SISYRINCHIUM BIRAMEUM Piper. 4. Branched blue-eved 

 grass. Wet meadows and swamps near Vancouver. April to June; 

 dark blue with yellow eye. 



ORCHIDACEAE Lindl. Orqliid Family. 

 Cypri^edium L" Lady's slipper- 

 Cypripedium montanum Dougl. 4. Western lady's slip- 

 per. Coniferous woods, Oswego and at old quarry. Park Place. 

 April to June; dull white veined with purple. 



Cephalanthera Reich. White orchid. 

 Cephalanthera Austinae (Gray) Heller. 4. White or- 

 chid. (C oregaua.) Rare in open woods, Mt. Scott. Formerly 

 on Mt. Tabor. May to July; whole plant white. 



Epipactis [Haller] Boehm. Stream orchid. 

 Epipactis gigantea Dougl. 4. Stream orchid. Infre- 

 quent in moist springy places, near mouth of Tualatin river, 

 along Clackamas river between Eagle creek and Estacada, etc, 

 June to Aug.; grceuish, prominently veined with purple. 



Ophrys L. Tway blade. 

 Ophry'S CORDATA L. 4. Heart leaved tway blade. {Listera 

 cQiKdata.) Moist coniferous woods near Linnton. May to July; 

 purplish or yellowish. 



