A phytogeographic and taxonomic study of the southern California trees and shrubs . ern Arizona, andthat the species restricted to the Colorado Desert are of southernorigin, and extend into Lower California, southwestern Arizonaand northwestern Sonora. EXPLANATION OF PLATESPlate ARelief map of California, from the original model by N. F. Drake. Pub-lished through the courtesy of the Department of Geology of Leland StanfordJr. University. Plate B Dry Lake, San Bernardino Mountains, altitude 3180 meters, showing apure forest of Pinjis Murrayana and Pinus flexilis. Canadian Zone. Plate CJuniperus
A phytogeographic and taxonomic study of the southern California trees and shrubs . ern Arizona, andthat the species restricted to the Colorado Desert are of southernorigin, and extend into Lower California, southwestern Arizonaand northwestern Sonora. EXPLANATION OF PLATESPlate ARelief map of California, from the original model by N. F. Drake. Pub-lished through the courtesy of the Department of Geology of Leland StanfordJr. University. Plate B Dry Lake, San Bernardino Mountains, altitude 3180 meters, showing apure forest of Pinjis Murrayana and Pinus flexilis. Canadian Zone. Plate CJuniperus occidentalis. Bear Valley, San Bernardino Mountains, altitude2230 meters. Transition Zone. Plate D Open park-like forest of Pinus ponderosa Jeffreyi, Mount Pinos, altitude2300 meters. Transition Zone. Plate E Pseudotsuga macrocarpa intermingling with the chaparral, TopatopaMountains, altitude 1800 meters. Upper Austral Zone. Plate FAlnus hombifolia, Waterman Canyon, San Bernardino Mountains, alti-tude about 1200 meters. Upper Austral Zone. Bull. N. Y. Hot. Gard. Vol. VI. Pl. RRLIFJ- MAP CALIFORNIA iii;()L«xiiCAi- i>i;iaRTmi;nt -^V^ RELIEF MAP OF
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1910
