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BRITISH FLOWERING PLANTS 



Plate CIX. Facing page 144 



Marsh Arum — Calla palustris (page 14Q) 



Fig. 1. Plant 

 ,, 2. Section of spadix 

 ,, 3. Pistil and stamens 

 „ 4. Berry 

 „ 5 and 6. Seeds 

 ,, 7. Cluster of fruit 



Plate CX. Facing page 144 

 Lesser Duckweed — Lemna minor (page 14Q) 



Fig. 1. 



4- 



Plants (natural size) 



Flower-bearing leaf, with stamen projecting 



from the perianth 

 Under-surface of leaf of an old plant with 



eggs of water-animals 

 Perianth, with developed stamen projecting, 



and undeveloped stamen within 

 Upper end of stamen with open anthers 

 Flower with perianth removed, and ovary 



in the centre. Stamen on the left still 



undeveloped 



Plate CXI. Facing page 146 



Broad Pond-weed — Potamogcton 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 



11. Single seed 



Plate CXII. Facing page 146 

 Cotton Grass — Eriophornm latifolium (page ijo) 



Fig. 1. Plant (reduced) 



2. Flowering stalk (natural size) 



3. Flower 



4. Flower with bract (magnified) 



5. Flower (more strongly magnified) 



6. Barren flower 



7. Fruit with bristles (natural size) 

 8 and 9. Fruit without bristles 



