Part 27

Eugenes fulgens, 134

Eunica and Siderone, resemblance of species of, 257

Euplœa, pale species of, in Moluccas and New Guinea, 258

Euro-Asiatic continent, Miocene fauna of, 323

Eustephanus, 141

Eustephanus galeritus, 143

Euterpe oleracea, 43

Evaporation and condensation, equalising effects of, 16

Female birds, greater brilliancy of some, 211

Female insects, greater brilliancy of some, 203

Ferns, 46

Ferns, preponderance of in Tahiti and Juan Fernandez, 269, 270

Fiji Islands, pale butterflies of, 259

Fire-ants, 83

Fishes, causes of general coloration of, 171

Flowering trunks, probable cause of, 34

Flowers, comparative scarcity of in equatorial forests, 60

Flowers and insects, 64

Flowers of temperate zones brilliantly coloured, 165 comparatively scarce in tropical forests, 167

Flowers, attractive colours of, 228 fertilized by insects, 228 attractive odours of, 230 when sweet-scented not conspicuously coloured, 230 attractive grouping of, 231 alpine, why so beautiful, 232 why allied species differ in beauty, 233 when wind-fertilized not coloured, 233 relation of colours of, to distribution, 235 and fruits, recent views as to action of light on, 236

Flowers of Auckland and Campbell’s Isles, bright-coloured, 238

Flying-lizards, 113

Foliage, two chief types of, in tropical forests, 33 colours of, 221

Foot of savages does not approach that of apes, 289 (note)

Forest-belt, cause of equatorial, 27

Forest-belts, temperate, 29

Forest-tree, section of a Bornean, 32 formed from climbers, 32

Forest-trees, characteristics of, 30