26 
according to soil and climate. It has frequently measured over 300 feet 
in height. -H. gunnii is of a greener foliage than the gums in general, 
has a wavy or fluted leaf, and is a free bloomer, with small white flowers. 
Hardy in England. It has at timesa tendency to irregular and fantastic 
forms of growth. 3 
E. amygdalina. This giant has been noted in the damp Victorian 
gorges to reach a height of 480 feet, but it does not attain the cubic 
contents of timber of the Sequoia. Its extreme height is due to long, 
delicate branches very different from those of our big tree. In Cali- 
fornia we have been disappointed in this tree because probably we 
expected too much. It has not grown as fast as several other species 
nor finally made so large a tree. HH. globulus, for instance, exceeds it 
here in every way. There are several varieties of HL. amygdalina or ot 
closely allied species. These are L. amygdalina, E. coccifera, E. risdoni, 
EL. regnans, and EL. linnea. | 
Besides H. coccifera, the EH. risdont stands low temperature. In 
California the narrow-leafed variety, or perhaps a sport, has withstood 
uninjured a temperature of 9° and perhaps even a short exposure of a 
lower temperature. The leaf has a pungent odor resembling a mixture 
of eucalyptus and peppermint, and the tree is commonly called pepper- 
_ mint gum. 
EH. hemiphloia, with a large percentage of oil containing eucalyptol, 
is reported as growing well in sandy places. It might, therefore, suc-. - 
ceed better in such soils than the blue gum, which likes a rich soil. 
SPECIES IN SOUTHERN CALIFORNIA. 
The species of eucalyptus most popular in southern California at the 
present time are in about the order named as follows: 3 
H. globulus, the blue gum, is first on account of its continued rapid 
growth, sanitary and medicinal effects, good fuel, fine piling, and gen- 
eral hardiness and vigor in all our vaileys opening to or not far from 
the ocean. It makes new crops of fuel rapidly when pollarded, being 
in this respect like a willow. The blue gum plantations far exceed 
in importance those of all other forest trees whatever. In California 
when the eucalyptus is spoken of—as “a row of eucalyptus,” “a grove 
of eucalyptus,” ‘eucalyptus leaves,” etc.—H. globulus is meant and 
taken for granted. This is the species which has been almost exelu- 
sively used for its attributed ameliorating or inhibitory effects upon 
malarial disease. This antimalarial influence of certain eucalypts may 
jnterest sections in our Southern States. The blue gum when young 
will not stand frosts below 25° F. The mature trees have, however, 
withstood temporary temperatures down to 18°, with some frost burn. 
E. corynocalyx, sugar gum, largely planted as a roadside tree in the 
warm and dry interior, makes a good head with dark-green, shining 
leaves. The timber in Australia is highly valued. Does not resist 
severe frost. 
a MOI 
