1918} BRIEFER ARTICLES 561 
It is evident that the chief size differences are in the spread of the 
corolla and the width of its lobes. The ranges of variation for these 
characters hardly overlap in the two forms. 
Fic. i.—Syringa persica: at left, large-flowered purple bud sport; at right, 
normal inflorescence of small-flowered, lilac-tinged variety. 
In both measurements and color, the bud sport exactly duplicated a 
dark purple variety of Syringa persica which is commonly cultivated. 
The latter differs from the lilac-tinged variety in that the corolla lobes 
appear to be 3-nerved rather than 1-nerved, In this character, also, 
the bud sport was different from the bush that produced it, and exactly 
