AMEEICAISr POTATOES: CLASSIFICATION" AND DESCEIPTIONS. 11 



freely and develop reasonably large plants. Tuber formation seems 

 also to be delayed, but when the proper growing conditions prevail 

 in the latter part of the season a crop is developed very rapidly. As 

 a group, the tubers are of desirable shape, attractive color, and good 

 table quality, and the vines are fahly resistant to drought and to 

 diseases other than the late-blight. 



In order to include russet-skinned varieties possessing characters 

 practically identical in all other respects with those of the white- 

 skinned class, it has been thought desirable^ as in the case of the 

 Bm'bank group, to make two sections. Inasmuch as the vine and 

 tuber characteristics, save for the color of the skin, are alike for 

 the two sections, one description serves equally well for both. 



Description. — Mnes medium large. Primary stem upright, long jointed, and 

 rather sparsely covered with foliage; lateral branches more or less decumbent, giving 

 the plant a straggly appearance. Stems more or less distinctly streaked with dark 

 purple. Leaves rather small, dark green, more or less rugose or crumpled, and leath- 

 ery to the touch. Flowers medium, abundant, and of fair size; the central portion of 

 the corolla is a deep violet-purple, which gradually shades into a lighter tone toward the 

 periphery. The color is practically absent on the upper side of the five points of the 

 corolla. Tubers round-flattened to broadly roundish oblong-flattened or distinctly 

 oblong (PI. XVI.). Eyes few, very shallow, bud-eye cluster strong and frequently 

 depressed. Skin creamy white and occasionally netted in the varieties of section 1, 

 while in those varieties belonging to section 2 it is a deep-russet color and much netted. 

 Sprouts short, base enlarged, dull white; leaf scales and tips medium to deep purple 

 or pansy violet. 



The varieties which have been recognized as belonging to section 

 1 of this group appear in many cases to be old ones under new names; 

 as, for example, Late Vicktor, Lily White, No. 9, Noxall, Ohio Wonder, 

 Prosperity, Rhind's Hybrid, and White Giant. These varieties are 

 all considered to be practically identical with the Rural New Yorker 

 No. 2. 



The following varieties are classified under sections 1 and 2: 



Section 1: 

 Arcadia. 



Carman No. 3 (PI. XVI, fig. 2). 

 Great Divide. 

 Jack-son White. 

 Late V^icktor. 

 Lily White. 

 Million Dollar 

 Noxall. 

 No. 9. 



Ohio Wonder. 

 Peerless (Bresee'e No. 6) or Boston 



10.— PEABL GROUP 



Section 1 — Continued. 



Prosperity . 



Rhind's Hybrid. 



Rural New Yorker No. 2 (PI. 

 XVI, fig. 1). 



Sir Walter Raleigh. 



White Giant. 



White Swan. 

 Section 2 : 



lyato Petoskoy (Rural Russet). 



Russet (Dibble's). 



So fur us the writer's studies are concerned, only three varioti(ts can 

 be ussigruid to the Pearl group. These are tii(» riiul, tlie People's, 

 and lh(; Hhio \'\(;U)v. In Colorado, Idaho, and adjoining States 



