PLATE 9 



Fig. 1. Typical Boreal meadow at about 8200 feet altitude in Tahquitz 

 Valley; photograph taken July 27, 1908. The conspicuous plant is Vera I nun 

 californicum, and living in its clumps were Melospiza I. lincolni and Sorex 

 tinnitus. The surrounding trees are Jeffrey and lodgepole pines and silver 

 firs. In these were Eegulus c. ™« raci us, Empidonax wrighH, and Sphyrapi- 

 cms thyroideus. 



Fig. 2. Lower Palm Canon near its mouth at the east base of San 

 Jacinto Peak; altitude 800 feet above seadevel; photograph taken June 16, 

 1908. Washington palms, Pluehea, catclaw, and mesquite served to diag- 

 nose the locality as within the Colorado Desert faunal area. Some Lower 

 Sonoran birds and mammals at this point were: Icterus c. nelsoni, Auriparus 

 /. flavici ps, Polioptila plumbed, Lophortyx gambeli, Peromysem e. eremicus 

 and Pipistrellus h. Hesperus. In addition there was present along the stream 

 the San Diego song sparrow (Mrloxpiza m. coopcri), which was here resident 

 under desert conditions of extreme type. 



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