38 THE MISTLETOE PEST IN THE SOUTHWEST. 



Page. 



Oak, water, destruction by mistletoe 20 



mistletoe infection, description 16, 17, 19 



Oaks, susceptibility to mistletoe infection 16, 17, 19, 20, 22, 25 



Orange, Osage, susceptibility to mistletoe infection 18, 19, 22 



Osage orange. See Orange, Osage. 



Paint, asphalt, for tree wounds 27, 28, 29, 33 



use in destroying mistletoe 27, 33 



Papyrus papyrifera, susceptibility to mistletoe infection 22 



Parasitism, progressive development in mistletoe family 10 



Pear trees, susceptibility to mistletoe infection 22 



Pecan trees, susceptibility to mistletoe infection 22 



Persimmon trees, susceptibility to mistletoe infection 23 



Phoradendron flavescens varieties, dominant hosts in various localities 22 



generic name of American mistletoe 7 



juniperum, scanty development 10 



species and varieties in arid Southwest 9-10 



Phrygilanthus aphyllus, South American mistletoe, an absolute parasite on 



cactus 10 



Pines, Europe, mistletoe infection 23 



Pinus spp., Europe, mistletoe infection 23 



Plates, description 34 



Pollination, mistletoe flowers 11 



Pruning, careless, damage to trees ^ 25, 28 



mistletoe, favorable to production of adventitious buds 16, 17 



for extermination, directions and cautions 25-27 



Primus sp., susceptibility to mistletoe infection in Texas 22 



Quercus spp. See Oaks. 



Rainfall, agent in mistletoe seed distribution 12 



Robins, distributers of mistletoe seed 12, 21 



Root, mistletoe, lateral growth and infringement on host 15-17 



seedling, adherence to host plant 14, 20 



similarity to Boston ivy root 14 



Roots, mistletoe, behavior similar to that of Johnson grass rootstocks 17, 26 



cortical, description 13—17, 32 



longevity 18 



means of feeding on host plant 14-15 



Sapindus marginatus, susceptibility to mistletoe infection 23 



Sassafras, susceptibility to mistletoe infection 22 



Seed, mistletoe, development 11 



distribution by birds and otherwise 11-12, 21 



drought resistance 12, 13-14, 15, 32 



endocarp, water-absorbing power 13 



power of assimilating carbon 13 



structure, vitality, and germination 12-17 



Seedling, mistletoe, a bud graft 15 



drought resistance 13-14, 15 



enzyme, power of dissolving cell tissue of host 14, 20, 21, 32 



germination and establishment 14-17 



sinker, development and adjustment to growth of host. 14, 15, 32 

 Shade trees. See Trees, shade. 



Sinker, mistletoe seedling, development and adjustment to growth of host. 14, 15, 32 

 See also Root. 

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