INDEX AND GLOSSARY 



165 



Aspergillus, a genus of Moulds, 

 including the common olive 

 green Mould on Bread, 107 



Athyrium filix-foeviina, the Lady 

 Fern, 1*07 



Axillary buds, buds which arise 

 in the axil or angle between 

 the leaf-stalk and the axis, 136 



Bacillus subtilis, the common 

 Hay Bacillus, one of the Bac- 

 teria, 108 



Bacteria, productivity of, 108, 

 113, 115 



"Barchan," a peculiarly shaped 

 sand-hill, seen in the Libyan 

 Desert, (Fig. 19), 123, 124 



Batrachospermum, a genus be- 

 longing to the red Algae, which 

 grows in freshwater streams, 13 



Beach, 12, 128 



Beech tree, storage in the com- 

 mon, 110 



Beet {Beta maritima), native on 

 the coast, 122 



Begonia, protected by acid taste, 

 89 



Bennettitales, a family of fossil 

 plants allied to the Cycadaceae, 

 63 



Bents, a name for certain Grasses, 

 but not always strictly applied. 

 The golfer's "Bent" is the 

 " Marram," which see, 147, 

 152 



"Blow-out," a term applied to 

 the hollows scooped out of 

 sand-hills by the action of the 

 wind, 151, 152 



Bracken Fern {Pteridium aquili- 

 num), 29, 31 



Buds, adventitious, 132, 142 ; 

 axillary, 136 



Burnet Rose (Rosa spijiosissima), 



142 

 Buttercup {Ranunculus), (Fig. 10) 



Cactaceae, self-protection of, 90 



Calyx, the outermost series of 

 floral organs, 53 ; origin of, 64 



Cardoon Thistle, dispersal of 

 its fruits, 114 



Carpels, the innermost series of 

 floral organs, 53 



Carrot, 122 



Cell-division, the common pro- 

 cess by which cells are multi- 

 plied in plants, 19 



Cell-wall, 18, 19, (Fig. 18) 85, 

 157 ; permeability of, 84 



Cephalanthera, a genus of Or- 

 chids, 106 



Chlorophyll-body, green coloured, 

 embedded in protoplasm of the 

 cell, 18 



Cilia, threads of protoplasm at- 

 tached to certain free cells of 

 water plants : by their active 

 lashing movements they cause 

 motion in the cells that bear 

 them, 20, 41, 78 



Cladonia, a genus of Lichens, 

 140 



Clavaria, a genus of Fungi, 140 



Climate, risks from, 90 



Clover, 140 ; clover and cats, 116 



Club-Mosses, a very ancient 

 family of plants, represented 

 by the livmg genus Lycopo- 

 diujn, 45, 53 56, 156 



Colouring, physiological meaning 

 of, 14 



Couidiophore, a fungal filament 

 that bears propagative cells 

 (conidia), 107 



11—3 



