Index 



PAGE 



Evening primrose, The, moth that destroys its buds 56 



noonday lesson of 57 



" The worm i' the bud " 54 



two kinds of buds 5o 



winter story of 59 



Evolution, period of time necessary for its work 24 



F 



Families of flowers, how far their methods of fertilization are 



uniform ■'■' 



Fertilization, inference of early authorities regarding 5 



Figwort, The (Scrophularia) 79 



Fire lily (L. Philadelphicum) ^21 



Flower, An abstract ; ^ 



A, how its shape may enable one to name its insect visitor... . 27 



^ of to-day ^° 



significance of its position on the stalk 27 



riowering and non-flowering plants, varying laws governing 



their fertilization ^7 



Flowering plants all subject to the law of cross-fertilization. ... 18 



Flowers, certain, invariably self-fertilized 16 



dimorphic ^ 



evil-smelling, adapted to carrion-loving flies 8 



heterostyled ^^ 



how they protect themselves from creeping pilferers 23 



methods of preventing self-fertilization .8-10 



reasons which tend to make certain insects true to certain 



species of ^3 



two-formed "^ 



uses of fringe on -° 



variations of sometimes indicate the beginning of a new 



species 3-4 



varying degrees of adaptation to insects 15 



Fragrance, result of adaptation to insects 8 



G 



Genista tinctoria (Woad-waxen) 47 



Ginseng, its cleistogamous buds ^7 



" Gold-barred butterflies " ^9 



173 



