234 
Journal of Agricultural Research 
Vol. XXIII. No. 4 
TECHNICAL DESCRIPTION OF THE THOMASVILLE CITR ANGEQUAT 
Fruit oval or nearly spherical, mature fruits having a long diameter of to 2 inches, 
diameter in cross section to 1 J/& inches, calyx strongly persistent with usually 5 
long, clawlike points; fruit spur long, swollen, and characteristically bent downward 
apparently by the weight of the fruit, color of mature fruit yellow to orange yellow, 8 
nnd thin (y& inch) somewhat roughened or “pebbly,” oil cells small, depressed, seg¬ 
ments, usually 7 or 8, thin-walled; core, little or none; seeds varying from none to 
12, usually not more than 6, small and plump; pulp light greenish to amber color, 
juicy, pleasantly acid when immature, becoming sweetish when fully mature; tree 
evergreen, vigorous, of upright habit; thorns rather numerous on old wood but much 
reduced and inconspicuous on bearing twigs; leaves uni-, bi-, and trifoliate (on 
young plants .chiefly trifoliate, on bearing wood chiefly unifoliate) long pointed oval 
or lanceolate, 2 to 3 inches in length, rather thick and stiff, slightly folded on the 
midrib, dark green, with finely incised margins; petioles, very narrow-winged; flowers 
small, pure white, 5-petaled, bloom appearing rather late though not as late as the 
kumquat, fruits ripening from October to December, but juicy and serviceable as 
ade fruits from July to October, 
OTHER CITRANGEQUATS 
During the spring and early summer of 1909, the senior author made 
many cross pollinations between citranges and kumquats. From these 
numerous crosses, 67 citrangequats were secured. These citrangequats 
are mostly hybrids of the oval kumquat with the citrange, the latter 
being the pollen parent. Five different citranges were used as pollen 
parents, but most of the citrangequats (49 in all) have Rusk citrange 
as the mother parent; the next largest group (11 in all) are hybrids 
between the Willits citrange and the oval kumquat. Three of the 
citrangequats are hybrids of the round kumquat pollinated by the Rusk 
citrange. 
Not all of the citrangequats have been as yet carefully studied, but a 
number of them are of interest and several of the most promising are 
noted below. 
A second citrangequat (C. P. B. No. 48011) was grown from the same 
crossed fruit that yielded the Thomasville. It differs from that variety 
in having large fruits more nearly spherical in shape and borne on upright 
fruit stalks instead of on curiously elongated “goose-neck" fruit stalks. 
This citrangequat, like the Thomasville, loses much of its acidity as the 
fruit matures and like it has a mild-flavored peel and usually few seeds. 
When fully ripe this citrangequat is sweeter than the Thomasville and 
can be eaten from the hand by those who like rather sour citrous fruits. 
Another citrangequat resulting from the same cross of oval kumquat 
and Willits citrange is C. P. B. No. 48005. The pollen parent was the 
same as that of the Thomasville but the seed parent was a different 
tree growing in the same dooryard at Eustis, Fla. This citrangequat 
has attracted attention by fruiting freely in the garden of Mr. George 
H. Harris, a cooperator living at McRae, Telfair County, Ga., far to 
the north of the limit of ordinary citrous fruit culture. 
It differs decidedly from the Thomasville in remaining intensely acid 
even when fully mature. The fruits are nearly spherical and are borne 
on erect fruit stalks. As this citrangequat has fruited successfully as 
far north as the latitude of Savannah, 32°, it seems advisable to give it a 
8 Ridgway, Robert, color standards and color nomenclature, pi. Ill, IS. Washington, D.C., 
1912. 
