LUTHER BURBANK 



are occasionally seen. Sometimes also the blue 

 flowers are edged with white; and on occasion one 

 sees white flowers with a blue edging, and some- 

 times a shade of yellow. 



The coast tree lupine, another wild plant, bears 

 spikes of brilliant yellow flowers. But these may 

 vary from lemon yellow to sulphur yellow, brown- 

 ish yellow, smoky yellow, redish, pale blue, yel- 

 lowish blue, dark blue, and pure white. Bright 

 yellow is the typical or usual color, and white is 

 quite rare. The other colors are not unusual. 



The Limnanthus douglasii is a wild swamp 

 plant the flowers of which sometimes seem to 

 carpet the ground. The upright, bell-shaped flow- 

 ers are usually milk white. But I have received 

 specimens from the Sierras that were yellow. 



The beard-tongue, a relative of digitalis, of the 

 species known as Pentstemon barbatus, has flow- 

 ers that vary from scarlet to almost pure yellow 

 and white. 



The crimson clarkia and the bluebell have 

 flowers the colors of which are indicated by their 

 respective names; but both on occasion produce 

 blossoms that are pure white. Everyone knows 

 that the heliotrope, the lilac, and the violet, among 

 cultivated flowers, are often represented by white 

 forms — and the violet by other colors. The same 

 is true of the whitelaria, the typical flowers of 



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