Description and Classification 29 



Group 7. — Burbank Group. 



Tubers : Long, cylindrical or slightly flattened in shape. Eyes 

 numerous and rather shallow. Skin white to dull white, 

 smooth to glistening, or sometimes russeted. 



Sprouts : Base creamy white or faintly tinged with magenta. 



Flowers : White. 



Group 8. — Green Mountain Group. 



Tubers : Broadly roundish-flattened to distinctly oblong-flat- 

 tened; ends usually blunt, especially the seed end. Eyes rather 

 shallow. wSkin dull creamy white, more or less netted. 



Sprouts : Rather short and stubby. White or faintly tinged. 



Flowers : White. 



Group 9. — Rural Group. 



Tubers : Round-flattened to broadly roundish — oblong or dis- 

 tinctly oblong. Eyes few; very shallow. Skin creamy white 

 and occasionally netted. 



Sprouts : Short, base enlarged, dull white. 



Flowers : Of fair size. Central portion of corolla deep violet- 

 purple, shading to a lighter tone toward outside edge. 



Group 10. — Pearl. 



Tubers : Round-flattened to heart-shape flattened, usually heavily 



shouldered ; skin dull white, dull russet, or brownish white in 



section 1 or a deep bluish purple in section 2. 

 Sprouts : Section 1 — base, leaf scales and tips usually faintly 



tinged with lilac ; section 2 — base, leaf scales and tips vinous 



mauve. 

 Flowers : White. 



Group 11. — Peachblow. 



Tubers : Round to round-flattened or round-oblong ; skin creamy 

 white, splashed with crimson or solid pink ; eyes usually bright 

 carmine. Includes some early-maturing varieties. 



Sprouts : Base, leaf scales and tips more or less suffused with 

 reddish violet. 



Flowers : Purple. 



