S3 Page 69
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Collector: Grinnell - 1925
Location: Colnett, lat. 31 degrees
Date: October 29, 1925
Page Number: 2611
and numerous other small-leaved, or thorny plants.
Yet one of the lyciums, the “frutéa,” carries a huge load of
the lichen, “orchilla”; and the ground about hour campsite
is carpeted with an annual ice-plant, just now
coming up - so wet that as we walk about it makes
mud as it is ground into the soil! It is hard
to define the place zonally. The cactus, and dense
growths of arrowweed (pluchea) out along the “river” channel,
the lyciums, etc., indicate Lower Sonoran; yet the “buck-eye”,
artemisia californica (if it is that), Rhus, etc., might indicate
Upper Sonoran. I have saved specimens of all the
conspicuous bush plants, for identification. The birds
are surely mixed: Cactus Woodpecker, Black-Tailed
Gnatcatcher = Lower Sonoran; Calif. Thrasher, Spotted Towhee,
Bewick Wren, Brown Towhee, etc. = Upper Sonoran. “San
Diegan” applies close to the sub fauna; but a “San
Quentin” phase of it might need to be recognized.
6653 Black-Tailed Gnatcatcher (female sign) ad. 5.7g.
6654 “ “ (male sign) ad. 6.3g. Shot in Rhus laurina thickets. mates.
Oct. 30
6655 Perognathus fallax (?) (female sign) 17.4g. 175 x 96 x 23.5 x 4.5
On silt-bottom under composite shrub.
Discarded: Peromyscus m. gambeli, 2 ad. (male sign) (male sign), under
bushes on bottomlands. Lamb caught the following two mammals on same
sort of ground.
6656 Dipodomys agilis (female sign) 49.2g. 257 x 150 x 38 x 115.
6657 Ammospermophilus (female sign) 130g. 210 x 53 x 38.5 x 5.5.
A Sparrow Hawk flew over. Saw a Roadrunner
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