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handle: 10261/189789
Cualquier viaje es fuente de experiencias para el aficionado a la observación de la naturaleza. Y quizá los viajes más llenos de enseñanza sean los realizados a países que no son exactamente iguales a los nuesros; pero que tampoco son demasiado diferentes. [...] Acer saccharophorum, Fagus grandifolia, Ulmus americana, Fraxinus americana, F. nigra, Betula populifolia, B. papyrifera, B. lutea, B. alba, Tilia glabra, Acer rubrum, Salix nigra, Populus hemuloides, Prunnus virginiana, Cornus stolonifera, Rhus typhina, Rhus candicans, Ilex verticacillata, Rhamnus alnifolia, Abies balsaminea, Pinus stroba, Thuya occidentalis, Picea canadensis, Nuphar variegatum, Scripus, Myrica gale, Alnus incana, Sarracenia purpura, Fragaria americana, Podophyllum peltatum, Crataegus, Corvus corax, Capella gallinago, Falco peregrinus, Lagopus lagopus, Lagopus mutus, Pandion haliaetus, Rana temporaria, R. ripiens, R. ridibunda, R. catesbiana, Bombycilla garrulus, C. cedrorum, Dryocopus major, D. minor, D. villosus, D. pubescens, Bubo bubo, B. virginianus, Regulus regulus, R. ignicapillus, R. satrapa, R. calendula, Anthus pratensis, A. spinoletta, Ursus arctos, U. americanus, Rengifer tarandus, R. arcticus, Alces alces, A. americana, Cervus elaphus, C. canadensis, Bison bonasus, B. bison, Lepus timidus, Lepus americanus, Equus, Tabanus, Chrysops, Sarcophaga, Lucilia, Simulium, Lispa, Scatophaga, Scatella, Eristalis, Syrphys, Asilus, Bibio Strantiomys, Bombylius, Cincidela, Gerris, Sigara, Aphrophora, Belostoma flumineum, Lethocerus americanus, Mantis religiosa, Tenodera sinensis, Sylvelagus, Peromyscus, Procyon lotor, Mephitis, Conephatus, Anasa tristis, Protenor belfragei, Astacus, Melanoplus differentialis, Heleix pomatia [...]
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6 pages
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