394 Miihlenbergia, Volume 2 



This fragrance is due to the presence of Couniarin, a principle 

 that is also contained in other species such as Melilotus alba^ 

 Dipterix odoraia^ etc. Were it geucially known that any long 

 continued inhalalion of this odor is iujni ions, the practice of 

 hanging up the leaves in bedrooms would undoubtedly be stop- 

 ped. April to June. White, small. 



PAPAVERACEAE Endl. Poppy Family. 

 ESCHSCHOLTZIA Cham. Western poppy. 

 EscHSCHOi.TziA DouGLASii Beuth. 4. Douglas' poppy. 

 Open glades near Gladstone. May, June, Bright yellow. 



X ESCHSCHOLTZIA CAUFORNICA Cham. 4. California poppy. 

 Vacant lots and waste places. Goldsmith's Addition, East Port- 

 land, etc. Introduced from California. May, June. Orange to 

 yellow or yellow with orange center. 



Papaver [Tourn] L. Poppy. 

 X Papaver Rhoeas L. i. Field poppy. Ballast grounds 

 and waste places, Lower Albina. Adventive from Europe. May 

 to July. Scarlet. 



FUMARIACEAE DC. Fumitory Family. 

 BiKUKULLA Adans. Bleeding heart. 

 BiKUKULLA FORMOSA (Andr.) Coville. 4. Western bleeding 

 heart. Moist ground and stream banks, Balcli creek, St. Hel- 

 ens road, etc. April to June. Rose-purple. 



BRASSICACEAE Lindl. Mustard Family. 

 Brassica [Tourn.] L. Mustard. 



Brassica nigra (L) Koch. 1. Black mustard. Common 

 in fields and waste places around Portland. Naturalized from 

 Europe. May 10 October. Yellow. 



Brassica campestris L. i. Wild turnip. Common in fields, 

 vacant lots and waste places about the city. Introduced from 

 Europe. April to October. Pale yellow. 



X Brassica alba (L.) Boiss. 2. White mustard. Fields, 

 roadsides and waste places about the city. Introduced from Eu- 

 rope. May to October. Yellow. 



X Brassica arvensis (L.) B. S. P. i. Charlock. Noxious 



