Glen Saint Mary T^urseries Co. 
V/inter Haven, Florida 
Original Duncan Tree Sister Tree to Duncan 
Though over eighty years old, these trees are still producing enormous crops of fruits 
GRAPEFRUIT 
The Grapefruit industry of today is a growth of not more than forty years. The increase in culti¬ 
vation, production, and use of Grapefruit is without a parallel in American horticulture. It is Florida’s 
greatest single fruit contribution to the tables of the world, and it is in Florida that its culture has 
reached its greatest development. Its consumption has increased faster than the supply. Extensive 
advertising in various ways, resulting in wide distribution, has been a large factor in popularizing this 
comparatively new and very wholesome fruit. In addition, it should be remembered that, tree for tree, 
a Grapefruit planting will produce twice the number of boxes of fruit that orange trees will at practically 
the same cost of production. For example, under the same conditions, assuming that a six-year-old 
orange tree will produce 2 or 3 boxes, a Grapefruit tree of the same age will yield 4 or 6 boxes. The 
market for Grapefruit is continually broadening, and canning the fruit has greatly widened its dis¬ 
tribution. On the whole the Grapefruit outlook is very satisfactory. 
Duncan Grapefruit 
We consider Dhncan the finest early Grapefruit grown. During all the years we have been in the citrus 
business (and during this time we have grown, observed, and tested a host of varieties), we have never 
found a Grapefruit which is quite the equal of Duncan in all-round desirability. It has everything a 
Grapefruit should have, and is lacking in no particular. Its size is exactly what the markets want and 
pay best prices for—54’s to 70’s. Its shape is round, slightly oblate, and it packs well. Color a clear 
light yellow, with oil-cells showing through the smooth skin. The juice content is particularly heavy 
and possesses more than any other Grapefruit the true sweet-bitter-acid-grapefrult flavor. The season 
of this fine Grapefruit is an extended one. It is ripe enough in color and quality to ship in early 
November, and it can be held on the tree without deterioration until late in May. We have been propa¬ 
gating Duncan for more than a quarter of a century. Our first budwood was secured from the original 
Duncan tree at Green Springs, Fla. It has weathered the storms, cold spells, and neglect of more 
than eighty years and is still bearing good crops. Through all the cold periods which we have ex¬ 
perienced during the past quarter of a century, both in north and south Florida, we have observed 
that Duncan invariably has suffered less than any other variety. It is unquestionably the hardiest 
of all the Grapefruit. 
Marsh Seedless Grapefruit 
This fi ne variety originated at Lakeland, Fla., and was first brought to notice and grown by Mr. 
C. M. Marsh, about 1895. Its most marked characteristic is its practically seedless fruit. Its market¬ 
ing season begins in January, and, because it is so nearly seedless, the fruit can be held on the trees later 
than all other varieties except McCarty, which is equally late. The fruit is very handsome in appear- 
11 
