GAYOPHYTUM AND BOI8DUVALIA. H9 



Onagrearum 



Oenothera densifi 



Lindley, Bot. Keg. 1833, xix. pi. 1593. — Mostly a foot or 

 two high, simple or with few ascending branches, green to 

 hoary, more or less villous ; leaves 1 to 3 in. long, lan- 

 ceolate, acute, denticulate to rather sharply serrate, the 

 upper abruptly becoming shorter, broadly ovate, acuminate, 

 mostly entire, sometimes much crowded ; flowers in an often 

 dense terminal spike, similar but shorter clusters ending 

 the branches; corolla 12 mm. long, deep violet, mostly 

 exceeding the subtending leaves ; capsules stout, straight, 

 usually blunt, terete, about 7 mm. long, shorter than 

 the leaves, septifragal, with 4 broad but low nerves; 

 seeds rarely over 6 in each cell, pale at both ends, gen- 

 erally very concave on the inner face and much deformed 

 by mutual pressure, about .9 X 1.7 mm. (exception- 

 ally varying from .63 to 1.26 X 1.26 to 2.31 mm.) 

 Vancouver Island and Washington to Nevada and Lower 

 California. 



Specimens examined from Vancouver (Macoun, July 9 

 and Aug. 27, 1887), Washington (Brandegee, 1883, 787; 

 Yakima Co., Henderson, May 27, 1892, 2470; Seattle, 

 Smith, July 6, 1889, 108; Piper, July 1 and Aug. 9, 1888, 

 2761, and Miss Shumway, May 1892; Klickitat Co., 

 Suksdorf , Aug. 8, 1881, 15 ), Oregon (Hall 



Williamson 



Kellosrer & Harford 



Geyer 



591; Nuttall — types of imbricata, salicina, and salicina 



ifl 



1882; Grant 



degee, Sept. 1885; Clear Water, Spalding), California 

 (Fitch; Kellogg & Harford, 1868-9, 275; Vasey, 1875; 

 Brewer, 1860-2, 811; Alta, Pringle, Sept. 29, 1882; Sierra 

 Nevada Mts., Lemmon, 1875; Susanville, Brandegee, July 



Sonoma Co., Samuels, 72 ; Sonoma Valley 

 4: Sta. Lucia Mts.. Vasev. Julv 1880. 



205 and 



an albino, Brandegee, 1886; Placer Co., Vasey, 1880; 

 Jolon, Vasey, July 1880, 206; Kern Co., Palmer, 1888, 



141 — an albino; Oakland, Jones, 1881, 2358; Stanislaus 



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