4 BULLETIN 176, U. 8S. DEPARTMENT OF AGRICULTURE. 
to result from such a study and should tend to discourage the pres- 
ent practice of some of the seedsmen who manufacture new varieties | 
out of old ones. 
CLASSIFICATION KEY.! 
Group 1.—CoBBLER. 
Tubers: Roundish; skin creamy white. 
Sprouts: Base, leaf scales, and tips slightly or distinctly tinged with reddish | 
violet or magenta. In many cases the color is absent. : 
Flowers: Light rose-purple; under intense heat may be almost white. 
Group 2.—TRIUMPH. 
Tubers: Roundish; skin creamy white, with more or less numerous splashes of | 
red, or carmine, or solid red; maturing very early. 
Sprouts: Base, leaf scales, and tips more or less deeply suffused with reddish | 
violet. 
Flowers: Very light rose- -purple. 
Group 3.—EaARLY MICHIGAN. 
Tubers: Oblong or elongate-flattened; skin white or creamy white, occasionally 
suffused with pink around bud-eye cluster in Early Albino. 
Sprouts: Base light rose-purple; tips creamy white or light rose- pum 
_ Flowers: White. 
Group 4.—Rose. 
Tubers: Roundish oblong to elongate-flattened or spindle-shape flattened; skin 
flesh colored or pink, or (in the case of the White Rose) white. 
Sprouts: Base and internodes creamy white to deep rose-lilac; leaf scales and 
tips cream to rose-lilac. 
Flowers: White in sections 1 and 2; rose-lilac in section 3. 
Group 5.—Earty Ougto. : 
Tubers: Round, oblong, or ovoid; skin flesh colored or light pink, with numerous 
small, raised, russet dots. : 
Sprouts: Base, leaf scales, and tips more or less deeply suffused mgt carmine- — 
lilac to violet-lilac or magenta. 
Flowers: White. 
Group 6.—HEBRON. 
Tubers: Elongated, somewhat flattened, sometimes spindle shaped; skin creamy | 
white, more or less clouded with flesh color or light pink. 
Sprouts: Base creamy white to light lilac; leaf scales and tips pure mauve to 
magenta, but color sometimes absent. 
Flowers: White. 
Group 7.—BURBANK. 
Tubers: Long, cylindrical to somewhat flattened, inclined to be slightly spindle 
shaped; skin white to light creamy white, smooth and glistening, or deep 
russet in the case of section 2. 
Sprouts: Base creamy white or faintly tinged with magenta; leaf scales and tips 
‘usually lightly ee with magenta. 
Flowers: White. 
Group 8.—GREEN MOouNnNTAIN. 
Tubers: Moderately to distinctly oblong, usually broad, flattened; skin a dull 
creamy or light russet color, frequently having russet- brown pplashes toward 
the seed end. 
Sprouts: Section I—hbase, leaf scales, and tips creamy white; section 2—base 
~ usually white, occasionally tinged with magenta; leaf scales and tips tinged 
with lilac to magenta. 
Flowers: White. 
1 The color v alues are based upon the chart published by the French Chrysanthemum Society, Paris, 
1905. 
