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 



Kaulfussm, a genus of Ferns, 



107 



Kerner, A., 106, 108 

 King Charles' oak, 33 

 Krakatau, Island of, 112 



Ladies bedstraw (Galiiim 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 Bed 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 



