INDEX. 513 



Page. 



Juglans rupestris 44 



Junco 63 



Juniper, alligator 42 



California 42 



one-seed 41 



Juniperus californicus 42 



monosperma 41 



pachyphloea 42 



Koeberlinia 63 



spinosa 63 



La Abra Plain ' 117 



La Carpa, Sonera :..J 20, 128 



La JoUa, California. 22, 138 



La Osa, Arizona 18, 112 



La Merita Mountains 13 



La Noria 17 



La Repr&o 18 



vegetation at 119 



La Ventana 18 



La "Ventura Ranch 114 



Laguna del Alamo 21 



Laguna Mountains : 22, 139 



flora of 135 



Laguna of Salton River, Lower California 130 



Laguna Station, California ■ 131 



Lake Guzman 28 



collections from 82 



Lake Palomas 10, 28 



Lang's Rancli 12, 15 



Laurel, California 56 



Lechuguilla Desert - 19, 20 



Mountains 19 



Lemmings 493 



Lepua floridanus holzneri 286 



Libocedrus decurrens 40 



Life areas of the Mexican Boundary Region 70 



Life zones of Old World , correlation of, with those of New World 72 



primary 71 



secondary 71 



Locust, New Mexico 62 



Lower Boreal Life Zone 39, 49 



Califomian tropical flora 43 



' corner monument, flora of 86 



Sonoran Life Zone 32, 59,61 



Lyonothamnus floribundus asplenifolius 56 



McMaster, Lieutenant George H 14 



McVay, Lieutenant Harlan E 6, 13 



.Madrona, Arizona 66 



Mahogany, birchleaf 57 



entireleaf 57 



Mammals of the Mexican Boundary Region 149 



30639— No. 56—07 m 33 



