86 THE SWEEl POTATO. 



Black Spanish. Various States of the Union. 



Formula : 



A3 B2 CI D4 E2 Fl Gl H2 14 J5 K3. 



Stems very long, fg inch in diameter, very dark purple. Petioles 

 also purple, except those near the tip, if shaded. 



Star bright and large. Leaves dark colored, i^owcr surface of 

 veins purple. Leaves often 5 inches long and broad. Type leaf 

 Fig. 50. Latex very abundant, dripping off when stem is cut. 



Hair mostly on tip only, or continued down on larger veins. 



Brass Cannon. Jamaica. 



Formula: 



A2 B2 C2 D3 E2 Fl Gl HI 14 J2 K3. 



Stems short, thick (t\ inch), greenish brown, to purple on upper 

 side. 



Star large, lower surface of veins strongly marked purple. Hair 

 thick all over the upper surface of the leaf. 



Type leaf Fig. 40. 



Bronze Spanish. Washington, D. C. 



Formula : 



A3 B2 CI D4 E2 Fl Gl H3 12 Jl K3. 



Stems long, fg inch in diameter, or a little thinner, but never 

 thinner than % inch, very dark purple. Petioles also purple. 



Star bright and large. Leaves dark colored. Lower surface of 

 veins purple. Leaves often 5 inches or more long and broad. 



Hairs practically absent. 



Tj-pe leaf Fig. 51. 



Carolina Extra Early. Georgia, etc. 



Formula: 



A3 + 4 Bl-2 CI Pl El F2 G3 HI 12 J2-3 Kl. 



Stems long, less than % inch in diameter, green. Faint purplish 

 spot at the lower surface of the base of the midrib. 

 Type leaf Fig. 63. 



