10 BULLETIN 176^ TJ. S. DEPAETMEISTT OF AGRICULTUEE. 



8.— GREEN MOUNTAIN GROUP. 



The members of the Green Mountain group may be said to share 

 honors with those of the Rural in their commercial importance. 

 They seem to be particularly well adapted to northern latitudes 

 where the rainfall is abundant and the temperature is not excessively 

 high. As a rule, they do not succeed as well in localities where they are 

 subjected to unfavorable conditions of growth during the time they 

 are forming tubers as do the members of the Rural group. The 

 varieties in this group are divided into two sections, according to 

 whether they have white or slightly colored sprouts. 



Description. — Vines large, strong, healthy, and well branched. Stems neai'ly 

 upright in early stages of growth, but gradually assuming a spreading habit toward the 

 latter end of the season. Flowers white, abundant, rarely producing seed balls 

 except under very favorable climatic and soil conditions. Tubers broadly roundish 

 flattened to distinctly oblong-flattened; ends usually blunt, especially the seed end 

 (Pis. XIV and XV). Eyes medium in number, rather shallow, with strong bud-eye 

 cluster. Skin dull creamy white, more or less netted, frequently with russet-colored 

 splashes toward the seed end. Sprouts rather short and stubby. In section 1 they 

 are white. Those in section 2, with the exception of Twentieth Century and Late 

 Puritan, are mostly without color at the base, while the leaf scales and tips are usually 

 faintly or distinctly tinged with lilac or magenta. 



The following varieties are believed, to belong to the white-sprout 

 division, section 1 : 



Bethel Beauty. 



Blightless Wonder. 



Carman No. 1. 



Clyde. 



Delaware. 



Empire State. 



Farmer. 



Freeman. 



Gold Coin (PL XV). 



Green Mountain (PL XIV). 



Green Mountain, Jr. 



Gurney's White Harvest (PL XV). 



Keystone. 



Late Blightless. 



Long Island Wonder. 



Norcross. 



Pride. 



Snow. 



State of Maine. 



Uncle Sam. 



White Mountain. 



The colored-sprout division, listed as section 2, consists of the 

 Charles Downing, Idaho Rural, and Rustproof varieties. 



9.— RURAL GROUP. 



The Rural group includes a large number of strong-growing, late- 

 maturing varieties. Collectively they are now commonly referred 

 to by New York State growers as ''blue-sprout" potatoes. This 

 term distinguishes them from the "white-sprout" varieties belonging 

 to the Green Mountain group. The varieties of the Rural group seem 

 to be admirably adapted to northern and western New York and to 

 certain sections of Michigan and Wisconsm, and they can also be 

 successfully grown in the New England States. The tubers keep well 

 in storage and are slow to germinate in the spring. The vines 

 develop slowly at first, but as the season advances they branch rather 



