168 



INDEX AND GLOSSARY 



Halophytes, plants which grow 

 where the water contains salt ; 

 the effect upon them is seen in 

 their fleshy habit, 129 



Hard Fern {Lomaria spicant), 60 



Heath {Erica), 142 



Henbane {Hyoscyamus niger), 

 106, 108 



Hermaphroditism, the existence 

 of the male and female organs 

 on the same individual, 97 



Higher Plants, generally equiva- 

 lent to Seed-bearing Plants, 

 47, 50, 70, 156 



Himanthalia lorea, one of the 

 common brown Tangles of the 

 coast, 16 



Hofmeister, W., 56 



Horsetails, a very prevalent 

 family of plants in early geo- 

 logical times, but now repre- 

 sented only by the genus 

 Equisetum, 45, 53, 56, 156 



Horticulture, 5 



Humble Bees, 116 



Immobility of Plants, 82, 89, 96, 

 157 



Increase, geometrical ratio of, 105 



Indusium, a protective covering, 

 usually thin and membranous, 

 which overarches the sporangia 

 in Ferns, 35, (Fig. 6) 37, 38 



Inflorescence, a branch-system in 

 the Higher Plants, specially de- 

 veloped for bearing flowers, 

 135 



Insects, attraction of, 64 



Insect-agency, 70 



Integuments, the outer coats of 

 the ovule, 72, (Fig. 15) 73 



Internode, the length of stem 

 intervening between the inser- 



tion of two successive leaves, 

 136 



Intra-cellular movement, the 

 movement of the protoplasm 

 of the living cell within its 

 cell-wall, 82, (Fig. 18) 85 



Ipomoea Pes-caprae, a member of 

 the Convolvulus family, preva- 

 lent on tropical shores, 129 



Kaulfussia, a genus of Ferns, 



107 

 Kerner, A., 106, 108 

 King Charles' oak, 33 

 Krakatau, Island of, 112 



Ladies bedstraw {Galium verum), 



140 

 Lake Michigan, 139 

 Land Flora, 159, 163 

 Land, vegetation of, 45, 87, 156, 



158 

 Lantana, a genus of Verbenaceae, 



dispersal of, 114 

 Leaf, fall of, 91 

 Lemanea, a genus belonging to 



the Red Algae, which grows in 



mountain streams, 13, 14 

 Libyan Desert, 123, 124 

 Lichens, 140 

 Lilium Martagon, Turk's Cap 



Lily, 71 

 Ling or Heather {Calluna vul- 

 garis), 142, 153 

 Links, 124, 126 

 Linnaeus, 106 

 Liverworts, 45, 156 

 Lopsided or dorsiventral forms, 



of shoot or flower, 51 

 Lotus, a genus of Leguminosae, 



140 

 Lovage {Ligusticum scoticum), one 



of the Umbelliferae, 122 



