134 



INDEX 



Cherry laurel, cold and the, 27 

 Chestnut, horse, protective cover- 

 ing of buds, 19 ; wonders of, 24 

 Chickweed, vitality of, 86 

 Christmas rose, 30 ; petal-like 



sepals of, 121 



Circumnutation, definition of, 4 

 Cleavers, the, seeds of, 61 

 Clematis, wild, as climber, 8 

 Climbing plants, 3 

 Coco-nut, distribution of, 58 

 Cold, effect on plants, 26 

 Colour in plants as lure for 



insects, 70 



Coltsfoot, sensitiveness of, 31 

 " Compass plant," and light, 105 

 Competition among plants, 2 

 Conifers, needle-like leaves of, 26 

 Cornflower and insects, 98 

 Corolla, 117, 122 

 Cotyledons, what they are, 5 1 

 Cow-wheat, 47 

 Crocus, protective processes of, 



31 ; and insects, 99 

 Cross-fertilisation, methods of, 



68 et seq. 



Cuckoo flower, nectaries of, 69 

 Cuckoo-pint, and insects, 80 ; 



crystal needles of, 91 

 "Cup and Saucer," 131 

 Dandelion, rosette of, 14 ; dis- 

 tribution of seeds of, 57 ; 

 pollen of, 70 



Darwin, and influence of light on 

 plants, 103 ; on root develop- 

 ment, 113 



Dock, spreading methods of, n 

 Dodder, 45 



Dormice and seeds, 29 

 " Double" flowers, 123 

 Early purple orchis, cross-fertili- 

 sation of, 78 



Earth-nut, seed dispersal of, 64 

 Electrical influence on plants, 



108 

 Elm, seed of, 58 ; stinging hairs 



of, 91 

 Elodea canadensis, growth of in 



England, 60 



Eucalypti and light, 104 

 Evolution of flower, 116 et seq. 

 Explosive seeds, 63 

 Fall of the leaf, arrangement of, 

 23 



Feelings of plants, 101 et seq. 



Fern, propagation of, 65 



Fertilisation, process of, 123 



Field Iris, odour of, 72 



Flower, evolution of, 116 et seq. 



Foxglove, bristles of, 98 



Galls of oak, 39, 40 



Germ in seed, 51 



Germ cell of fern, 66 



Gipsy wort, 95 



Gloxinia, 131 



Gooseberry and insects, 99 



Grape louse, 39 



Grapple plant, hooked seeds of, 60 



Grass of Parnassus, false nec- 

 taries of, 69 



Grasses, struggle for existence, 

 2 ; vitality of, 85 



Grass - wrack, cross - fertilising 

 methods of, 82 



Green rose, curious blooms of, 1 20 



Guelder rose, 122 



Groundsel, vitality of, 86 



Gunneras, spreading methods of, 

 ii 



Hawkweed and sun, 106 



Hazel, colour of leaves, 20 ; cross- 

 fertilising methods of, 82 



Hibiscus, pollen of, 70 



Holly, leaf of, 26, 88 



Honeysuckle, climbing methods 

 of, 3 ; and insects, 99 



Hooked seeds, 60 



Hop, climbing methods of, 4 



Host, plant as, 32 et seq. 



Humble-bee and Araujia albens, 

 74 ; and antirrhinum, 75 ; and 

 cornflower, 99 



Humming-birds and cross-fertil- 

 isation of plants, 8 1 



Hyacinths, spreading habit of, 1 3 



Hydrangea, showy bracts of , 122 



Insects, and cross-fertilisation of 



plants, 68 ; provision against 



marauding, 97 

 Italian eel-grass, cross-fertilising 



methods of, 83 



Ivy as climber, 8 ; and light, 103 

 Ivy-leaved toad-flax and light, 



104 

 Jack-in- the-hedge, offensive smell 



of, 92 

 Japanese lily, nectaries of, 69 



