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BRITISH FLOWERING PLANTS 



Plate CIX. Facing page 144 

 Marsh Arum — Call a palustris (page 149) 



Plate CX. Facing page 144 



Lesser Duckweed — Lemna minor (page 149) 



Fig. 1. Plants (natural size) 

 „ 2. Flower-bearing leaf, with stamen projecting 



from the perianth 

 „ 3. Under-surface of leaf of an old plant with 



eggs of water-animals 

 ,, 4. Perianth, with developed stamen projecting, 



and undeveloped stamen within 

 „ 5. Upper end of stamen with open anthers 

 ,, 6. Flower with perianth removed, and ovary 



in the centre. Stamen on the left still 



undeveloped 



Plate CXI. Facing page 146 



Broad Pond-weed — Potamogeton natans (page 130) 



Fig, I. Plant (reduced) 



,, 2 and 3. Flower (natural size and magnified) 



„ 4 and 5. Petal 



,, 6 and 7. Stamen 

 „ 8 and 9. Pistil 



,, 10. Four seeds 



,, 1 1. Single seed 



Plate CXI I. Facing page 146 

 Cotton Grass — Eriophorum latifolium (page ijo) 



Plant (reduced) 

 Flowering stalk (natural size) 

 Flower 



Flower with bract (magnified) 

 Flower (more strongly magnified) 

 Barren flower 



Fruit with bristles (natural size) 

 and 9. Fruit without bristles 



