Viewing page 56 of 94

This transcription has been completed. Contact us with corrections.

[[blank page]]
[[end page]]
[[start page]]

[[underline]]Lakeside & Poway Valleys[[/underline]].

Hosackia glabra, wild oats and small plants, turkey mullen, a slender Croton and others. The introduced species such as Orange, Eucalyptis, pepper trees, olives, big Agaves, grapes Washingtonia palms, umbrella trees, & the Oleander certainly indicate Lower Sonoran zone.

A peculiar feature in zone distribution here is that Lower Sonoran runs highest on S.E. slopes, the slope sheltered from cool ocean winds and exposed to the hot sun.

In the bottom of the San Diego River valley there are 3 species of Baccharis or Bacharis like shrubs, many willows & especially the narrow leaved [[underline]]S. niger[[/underline]] or form of it, some sycamores and numerous cottonwoods (P. fremonti). It is doubtful if the bottom of the valley can be considered Lower Sonoran, or at least the moist part of it.

Poway Valley lacks most of the Upper Sonoran species & chapperal over its warm slopes and has Eucalyptis groves, Grovillea trees, Pepper trees & the big Agave marginata.