6 BULLETIN 1021, U. S. DEPARTMENT OE AGRICULTURE. 
In giving the names of the varieties it would be desirable to con- 
sider priority of nomenclature, but it is not possible to establish 
priority. In most cases it has not been possible to determine when, 1 
where, and by whom a name was given ; therefore it has been deemed \ 
advisable to select the name that is in most general use. It is real- .! 
ized that growers in some sections will feel that some of the names I 
used in this bulletin are not the correct ones. Growers in Yiriginia j 
may insist that the name Hayman should have been used instead of 
Southern Queen, but the latter name is more common in all other 
sweet-potato growing regions. The name Xansemond is more com- 
mon than Yellow Jersey in Virginia, but the latter name is much 
more common in all other regions where this variety is grown. The 
same may be said of all other names selected to designate the impor- 
tant varieties. Some varieties are grown to such a limited extent 
that there -is not much chance for confusion. 
KEY TO THE GROUPS. 
I. Leaves deeply lobed or parted — 1 and 2. 
(1) Leaves with purple stain at the base of the leaf blades. 
Ticotea, page 6. 
(2) Leaves without purple stain at the base of the leaf blades. 
Belmont, page 7. 
II. Leaves not deeply lobed or parted — 1 and 2. 
(1) Leaves with purple stain at the base of the leaf blades. A and B. 
(A) Stems purple or greenish with decided tinge Spanish, page 8. 
(B) Stems — a and b. 
(a) Leaves entirely to slightly shouldered; roots white. 
Shanghai, page 8. 
(&) Leaves toothed with 6 to 10 low marginal teeth, or 
entire; roots salmon or yellow tinged with salmon. 
Florida, page 9. 
(2) Leaves without purple stain at the base of the blade or with 
very faint stain — A and B. 
(A) Stems purple Southern Queen, page 0. 
(B) Stems green — a and 6. 
(a) Stems medium to large in size; roots fusiform, yellow 
tinged with salmon, with light yellow veins Pumpkin, page 0. 
(&) Stem slender; roots russet yellow or red, ovoid to fusi- 
form___ Jersey, page 10. 
DESCRIPTIONS OF THE GROUPS. 
In the descriptions of the groups an effort has been made to give 
the characteristics of the vines and roots of the entire group and 
not that of any particular variety; in fact, the group description 
has been made from the descriptions of the varieties belonging to 
the group. 
TICOTEA GROUP. 
Vines long. 6 to 12 feet, or short and stocky ; stems green in color or with a 
tinge, of purple at the nodes, nearly smooth; leaves very angular in outline, 
5 to 7 lobed ; blade hairy only on the veins of the upper surface, green except 
