. 



CATALOGUE OF SPECIES. 197 



Kaweah River as Kane Flat; in the Canada de las Uvas to within a half-mile of old 

 FortTejon; and in the valley of Kern River as far as the foothills, a few miles south 

 of Kernville, on the Calicnte road. The upper limit of its range is the lower limit of 

 the chaparral belt. 



Quercus dumosa Nutt. Sylv. i. 7 (1842-53). Type locality, " over the base of the 

 hills which Hank the village of Sta. Barbara, in Upper California." 



This scrub oak occurred in abundance on the south slope of Cajon Pass (Nos. 115, 

 116), extending a short distance over its summit. A few specimens were seen on the 

 foothills south of Antelope Valley, on Liebre Ranch (No. 1140). No. 115 is Engel- 

 mann's variety bullata. 



Quercus gambelii Nutt. Tl. Gair.b. 179 (1848). Type locality, "on the hanks of 

 the Rio del Norte." 



Specimens were collected on the southern escarpment of the Elden Mesa, near Flag- 

 staff, Arizona (No. 5). Within the range of the survey the plant did notoccurwestof 

 the Charleston Mountains, Nevada, where it was found in the nut pine belt, both on 

 the road to Clark's sawmill and near Mountain Springs. Dr. Merriam found it along 

 his route from the upper crossing of the Santa Clara Valley to a point beyond Moun- 

 tain Meadows, Utah, and in the Juniper Mountains, Nevada. 



Quercus lobata Nee, Anal. Cienc. Nat. iii. 278 (1801). 



This tree, the common white oak of southern California, requires a deep, rich soil, 

 well watered from beneath. The great area of the southern Tulare Plains is too 

 dry to support the tree, except in restricted localities. Along the bottoms of those 

 streams which are wide enough to furnish the requisite depth of soil the tree 

 ascends to an altitude of more than 1,000 meters. It was found from Calient* (No. 

 1111) to Tehachapi Valley; near Liebre Ranch house (No. 1130); in the Canada de 

 las Uvas, extending past Fort Tejon and as far above as Castac Lake; about Tejon 

 Ranch house ; at several points northward in the Tulare Plains; and along the Kaweah 

 River to a point a few kilometers above Three Rivers. In the well-watered region 

 of Tulare and Visalia this oak grows abundantly. The tree is a magnificent 

 species. Trunks 1.2 to 1.8 meters in diameter are common; and one on the old pa- 

 rade ground at Fort Tejon measured 8.03 meters in circumference. In the year 187G 

 Dr. Rothrock, botanist of the Wheeler Survey, measured the same tree and found 

 it to be 8 feet 2 inches in diameter. Reduced to the same units, these measurements 

 give a diameter in 1876 of 2.49 meters, and in 1891, 2.55 meters. One of the three 

 main limbs described by Rothrock had been broken off several years before our 

 visit. 



Quercus undulata Torr. Ann. Lye. N. Y. ii. 248 (1828). Type locality, "sources 

 of the Canadian, and the Rocky Mountains." 



This I take to be the true Q. undulata. The treo was not found west of the Charles- 

 ton Mountains, where it occurred on the east slope of Mountain Springs Pass (No. 

 385). It is a species characteristic of the Rocky Mountain region. Dr. Merriam 

 has reported it also from the Juniper Mountains of Nevada, and the upper Santa 

 Clara Valley and Beavenhun Mountains of Utah. 



Quercus wislizeni DC. Prodr. xvi. pt. ii. 67 (1864). Type locality originally 

 given incorrectly as Chihuahuan, but subsequently corrected 1 to "the American 

 Fork of the Sacramento River," California. 



This oak is characteristic of the foothill belt of the western slope of the Sierra 

 Nevada. It has a slightly higher range than Q. doiif/Iasii, but does not extend really 

 into the chaparral belt. It was found at several points from Fort Tejon to the val- 



ir rrans. St. Louis Acad. iii. 396 (1877). 



