20 
LORQUINIA 
QuERCUS KNGELMANNi, Greene. .(Engelmann Oak). It is also 
called Evergreen White Oak, although not strictly an evergreen species. 
It occurs in low, dry, sandy and gravelly soils in Southern California 
from Altadena to Glendora and southward to Lower California, and is 
found in small groups, usually with California Live Oaks. 
QuERCUS CHRYSOLEPis, Liebmann. (Canyon Live Oak).j This 
is an evergreen oak that is very variable in size and form, being found 
varying in size from low dense brush to a large tree forty feet high. It 
is usually found in dry sandy and gravelly soils, the larger trees being 
found in rich humus soils, usually growing among the Black Oak, 
California Live Oak, Western Yellow Pine and Incense Cedar {Libro- 
cedrus decurrens, Torrey). Two destinct varieties have been described, 
Quercus chrysolepis palnieri, Engelmann, found in extreme South- 
ern California, and Quercus chrysolepis vaccinifolia (Kellogg) Engel- 
mann, or Huckleberry Oak, a low shrub growing in high altitudes in 
the Trinity Mountains. 
QuERCUvS TOMENTELLA, Engelmann. There seems to be no field 
name for this little known species. It grows about forty feet high and 
is usually found in canyon bottoms and on exposed slopes in gravelly 
soils at Santa Rosa, Santa Cruz and on Santa Catalina, San Clemente 
and Guadalupe Islands. 
Quercus agrifoi^ia. Nee. (California Live Oak or Holly-leaved 
Oak). It is the commonest and best known of our native oaks and is 
usually found growing in the open, where it reaches a height of from 
twenty-five to seventy-five feet. It occurs on low hills, in open val- 
leys, shallow canyons and sometimes near the seashore, where it is very 
stunted. It forms open forests and may also be found growing with 
Valley Oak, Blue Oak and Post Oak. 
Quercus wislizeni, A. de Candolle. (Post Oak). This species 
is also called Live Oak, but it is an entirely different species from the 
preceding, although resembling it in size, general form and appearance. 
It is usually found on foothill slopes, open valleys and dry river bot- 
toms in poor gravelly soils. It is larger in sheltered locations. It is 
found with the Scrub Oak and chaparral. 
Quercus morehus, Kellogg. (Morehus Oak). This rare and 
little known oak is said by some authors to be an hybrid between 
Qiiercits udslizeni and Quercus calif ornica. It occurs in Central and 
Northern California on slopes and ridges in gravelly soils, but is not 
abundant. It is found often with California Black Oak, Post Oak and 
FremontodendroTi calif ornicum. 
