PIPER FLORA OF THE STATE OF AVASHINGTON. 47?> 



Racemes bracteate; corolla funnelforni; 



roots thick LitiiosperxMum (p. 4SG). 



Nutlets erect or oblique, attaclied above the 

 base, a more or less prominent fruiting 

 receptacle (gynobase) . 



Corolla yellow or orange, with naked 



open throat .Vmsinckia (p. 4S0). 



Corolla white or blue with throat more 

 or less fornicate — that is, l)eanng 

 prominent swellings. 



Nutlets very flat and thin, attached 

 above the middle, the margins 



spinulose Pectocarya (p. 482). 



Nutlets thick, attached at or below 

 the middle. 

 Perennials. 



Corolla bluev nutlets ob- 

 licjue, the dorsal surface 

 with an acute, entire or 



spiny margin Eritrichium (p. 480). 



Corolla white or whitish; 

 nutlets ovate-trigonous. Oreocarya (p. 481). 

 Annuals. 



Calyx circumscissile Piptocalyx (p. 481). 



Calyx not circumscissile. 

 Gynobase elongate, 

 the nutlets attached 

 by one-third their 



length or more Cryptanthe (p. 483). 



Gynobase low. 



Nutlets oblique 

 or incurved, at- 

 tached about 

 the middle by 

 a caruncle-like 

 process; leaves 



all alternate.. Plagiobothrys (p. 482). 

 Nutlets attached 

 just inside the 

 base ; lower 

 leaves opposite Allocarya (p. 48.5). 



HELIOTROPIUM. 



1. Heliotropium curassavicum L. Sp. Pi. 1: 130. 17.53. 



{ Heliotropium chenopodioides Willd. Enum. llort. Berol. 17-5. 1809. 



Type locality: " In Americae cahdioris maritimis." 



Range: Washington to Virginia and southward. 



Specimens examined: Junction Crab and Wilson creeks, Sandhcrg c£' Leiherg 339; Walla 

 Walla, Li/a//, June, 1860; Waitsburg, ffornfr 379; without locality, r«At'j/ in 1889; Wallula, 

 Cotton 1074«. 



Zonal distribution: Upper Sonoran. 



