Plate 



XLIV. 



LIST OF ILLUSTRATIONS 



Tig. 1. Bock Colonisation : A Bare Slab of 

 Bock in a Forest showing a Primitive Soil 

 composed of Pine-needles . 



[Major Dixon, photo.] 



Fig. 2. The Lichen (Us7iea) growing on the 

 branches of a Coniferous Tree 



[E.A.N.A., photo.]) 



XLV. The Linnsea (Linncea borecdis, Gronov.) . 



XLVI. 



XLVII. 



Fig. 1. The Box-leaved Polygala {Polygala\ 

 chamcehuxics, Linn.) .... 



[E.A.N. A., photo.] 



Fig. 2. The Two-flowered Violet ( Viola bijlora, 

 Linn.). ..... 



[Major Dixon, photo.] 



/Fig. 1. The Flowers of the Martagon Lily 

 {Lilium martagon^ Linn.) . 



[E.A.N. A., photo.] 



Fig. 2. The May Lily {Maianthemum conval- 

 lariay Weber) .... 



[Major Dixon, photo.]-^ 



XXI 

 Page 



FaA:e 238 



248 



252 



258 



FIGURES IN THE TEXT 



Fig. Page 



I. The Leaf and Scales of the Common Alpenrose (Ehoclo- 



dendro7iferrugi7ieum, Linn.) . . . .26 



1. Transverse section of a leaf, showing the scales on the 



lower surface. Magnified 14 times. 



2. Transverse section through a scale, on the right side of 



which a stoma is seen sheltered by the scale. 

 Magnified 190 times. 



3. Surface view of a scale. Magnified 190 times. 



II. Fruits of the Alpine Anemone {Atiemone aljnna, Linn.), in 

 various stages of development. Magnified twice 



1. In fully-opened flower. 2. Intermediate stage. 3. The 

 mature fruit. 



40 



