GOLDMAN—PLANT RECORDS OF LOWER CALIFORNIA. 823 
by us at higher levels near El Rayo and Sangre de Cristo in the Pinal Mountains and 
near Rancho Santo Tomés in the San Pedro Martir Mountains, but they may have 
been Q. wislizent. 
Quercus chrysolepis Liebm. CANYON LIVE OAK. 
The canyon live oak is common in the Transition Zone over the higher parts of the 
Sierra del Pinal and San Pedro Martir mountains, reaching down along the western 
side to about 1,200 to 1,500 meters, the variation depending on the slope exposure. 
Specimens bearing well-developed acorns were obtained by us, however, along a 
water course as low as about 1,050 meters altitude in the San Pedro Martir Mountains, 
on the road from Rancho Santo Tomés to San Antonio, July 28. In the Pinal Moun- 
tains we found Q. chrysolepis common among the great bowlders on the summits at 
between 1,500 and 1,800 meters elevation near Hanson Laguna. Specimens in the 
U.S. National Herbarium from Cedros Island seem referable to this species. They 
were collected by A. W. Anthony, July—October, 1896. 
Quercus palmeri Engelm. PALMER OAK. 
Noted in a number of places at 900 to 1,500 meters elevation, along the western 
basal slopes of the Sierra del Pinal and San Pedro M&rtir mountains. It grows usually 
as a stout shrub or small tree, 1.8 to 4.5 meters high, forming patches a few yards 
in extent. The foliage is very stiff and prickly, making it uncomfortable to force 
one’s way through thickets containing it. It was collected by us at about 900 meters 
elevation near Arroyo de Leon, on the northwest slope of the San Pedro Martir Moun- 
tains. Thisoak was originally described by Engelmann as a variety of chrysolepis and 
later raised by him to specific rank. It seems quite different from chrysolepis and, 
moreover, ranges in the Upper Sonoran Zone on warmer slopes and at lower eleva- 
tions than the latter species in the same general region. 
Quercus dumosa Nutt. CALIFORNIA SCRUB OAK. 
This species enters Lower California on the Pacific coast, ranging southward through 
the foothill region to near San Quintin. It is a low growing species, not usually over 
3.5 to 4.5 meters high, forming thickets on hillsides and along the bottoms of 
arroyos inthe Upper Sonoran Zone. It was collected by us 40 miles south of Tijuana, 
on the road to Ensenada, A specimen in the U.S. National Herbarium, taken at 
San Quintin by J. D. B. Stillman, November 18, 1862, seems referable to this species. 
Quercus tomentella Engelm. GUADALUPE ISLAND OAK. 
Described from Guadalupe Island and represented in the U.S. National Herba- 
rium by specimens collected there by A. W. Anthony, July—October, 1896, and 
March-June, 1897, by Dr. F. Franceschi in 1893, and by Dr. J. N. Rose in 1911. It 
has also been recorded from the islands off the coast of southern California. The 
species seems to be assignable to the Upper Sonoran Zone. 
ULMACEAE. Elm Family. 
Celtis reticulata Torr. FIACKBERRY. 
A small hackberry, apparently C. reticulata, which ranges widely in the southwest- 
ern United States, was noted by us in only a few places at about 720 meters altitude 
near the road from Miraflores to San Bernardo on the southern slope of the Victoria 
Mountains in the Cape District. It grows here as a mere shrub, 3 to 4.5 meters high, 
Reported by Brandegee from San Julio Canyon and as a small shrub growing about 
the Sierra San Lézaro, not far from where we found it. 
The lower elevation of its range and its difference in floral area suggest the pos- 
sibility that with additional material the Lower California plant may prove not to 
be true C. reticulata. 
