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His verdict is, "They are a real acquisition for this desert country." 
W. B. Pratt, State Forester, at Sacramento, Calif., tells us that, 
"Casuarina eunninghamiana has made remarkable growth at the State Nursery 
This winter we had a cold spell which frosted back many of 
our eucalyptus and acacia trees, but it did not affect this tree." 
From San Diego, Calif., comes the report of C. P. Barrows who 
says, "The tree has done remarkably well and I think much of it. The 
soil is not deep and quite stony, yet this tree has found good rooting." 
C. J. West, of Lake Stearns, Fla. , does not report the critical 
temperatures, but he says, "A very beautiful tree which outgrows every- 
thing else on the place." 
Henry Nehrling, of Naples, Fla., reports that Casuarina eunninghamiana 
is "an excellent plant for south and central Florida, much finer in my 
opinion than C. equisetifolia." 
From Appleton, S. C. , where the State Experimental Farm is located, 
Mrs. Dora D. Walker, Specialist in Production and Conservation, report- 
ed February 16, 1924, that her tree was still living, having endured 
the cold waves up to that time. This is the "farthest north" for this 
species at present. Time will be required to show that it can be culti- 
vated successfully in such latitudes on the Atlantic slope. 
Reports from more unfortunate experimenters show that all the trees 
of this species on the Gulf Coast were lost in the cold spells of January 
12, January 22, and February 11, 1924. 
At College Station, Tex., Prof. H. Ness says, "They were killed by 
the first frost of the season, in December, 1923. The frost was hardly 
sufficient to kill such tender vegetables as tomatoes and garden beans. 
The plants were in fast growth at the time of its occurrence." 
One loss only was attributed to frost in California, when Albert 
Etter, of Ettersburg, lost all of his trees at a temperature of 17° F. 
The temperatures which killed the Gulf Coast trees were 18° and 19° F., 
so that the temperatures 17° - 19° F., are probably the critical ones 
for young trees. 
Reports concerning the hardiness of Casuarina eunninghamiana are a 
trifle conflicting. Differences in the age and exposure of the trees 
may account for this. But it seems quite certain that this species 
can be grown farther north than any other of its kind yet tried in 
this country. 
Specimens of Casuarina received from experimenters of this Office 
show that even keen plantsmen get confused about the species . Further- 
more, in some cases the names under which this Office received seeds 
were incorrect. Until recently it has been impossible to check up 
these errors, but now several identifications have been corrected. The 
Office therefore invites experimenters to send for identification 
branches, especially flowering or fruiting ones, together with S.P.I, 
numbers if possible, in order that the names of Casuarinas distributed 
in past years may be revised. 
< Donald C. Peattie. 
