HORTICULTURAL EXPERIMENTS AT SAN ANTONIO. 19 
unless grown in well-protected situations. A number of plantings 
have been made in this section, but none of the trees has survived. 
Plantings of other sorts have been made, but the only citrus trees 
that have proved hardy are certain varieties of citranges. These 
fruits were originated by crossing the common sweet orange with 
the hardy trifoliate orange.!| The following varieties of these citranges 
have been under trial: Coleman, Cunningham, Morton, Rusk, 
Rustic, Savage, and Thornton. Of these the Rusk is the only 
variety that appears to be adapted to these conditions. The others 
either have died or made a very poor growth. This variety is bearing 
fruit for the first time this season. 
One interesting feature in connection with this group of fruits is 
that the trees appear to be immune to the root-rot fungus, so fatal 
to many other fruit trees. Plantings have been made since 1908, 
but none of the trees has died from this cause so far as it was possible 
to observe, although several varieties died from other causes. 
There is reason to believe that the Rusk citrange may make a good 
stock on which to work other citrus fruits in parts of Texas where the 
trifoliate stock is not adapted. This species has not done well at the 
experiment farm, whereas the Rusk citrange on its own roots has made 
an excellent growth. In addition to furnishing a useful fruit, the 
citrange can be used as a hedge, resembling very much the trifoliate 
orange, and it should be planted here in preference to that species. 
F'ig.—aA collection of several varieties of figs, including the Mis- 
sion, Magnolia, and others, has been grown without irrigation. The 
results indicate that the fig can not be grown successfully in this 
section without irrigation, and even with irrigation it is a doubtful 
crop because of winterkilling, except in protected situations. The 
plant is apparently exceptionally free from chlorosis, but is very sus-_ 
ceptible to root-rot, and this disease may be a limiting factor in grow- 
ing this fruit crop on a commercial scale, even under irrigation. While 
San Antonio is near the northern limit of the zone where the fig can 
be grown. in Texas, because of low winter temperatures, still, when 
srown in sheltered situations near buildings or other protection, the 
trees will survive where temperatures fall much lower than those 
ordinarily experienced in San Antonio. The fig should by all 
means be included among the fruits produced for home consumption 
on the farm. It should be grown, if possible, where some protection 
is afforded and where an occasional irrigation is possible. The 
Mission and the Magnolia are the two varieties most generally grown 
in this vicinity, but several other varieties of the Adriatic typeseem 
to be well adapted. The Smyrna type of figs can not be fruited in 
1 Webber, H. J.,and Swingle, W.T. New citrus creations of the Department of Agriculture. Yearbook 
of the Department of Agriculture for 1904, p. 221-240. 
