viii LIST OF PLATES 



FACING PAGE 



THE HUGE LEAVES OF THE SOUTH AMERICAN GUNNERAS 



COVER A LARGE AREA ...... IO 



THE PRIMROSE 12 



THE PRETTY PATTERN FORMED BY THE DWARF PLUME 



THISTLE ........ 12 



MANY SPECIES HAVE A HABIT OF " STARRING " OUT, AND IN 



THIS WAY DISCOURAGE SURROUNDING GROWTH . . 14 



SUMMER : SHOWING ALL THE AQUATIC PLANTS ABOVE THE 



WATER ......... 18 



WINTER : ALL THE PLANTS DISAPPEAR BELOW THE WATER 18 



PROTECTIVE BUD COVERING OF A SYCAMORE TREE . . 22 



WINTER AND SUMMER ....... 22 



PROTECTIVE SCALES OF CHESTNUT BUD . . . .24 



CHERRY LAURELS IN WINTER 26 



CHRISTMAS ROSE IN WINTER 30 



YELLOW RATTLE, A PLANT WHICH is PARTLY PARASITIC ON 



GRASS ROOTS 36 



LAUREL LEAVES, SHOWING NECTARIES .... 36 

 AN ACACIA WITH SWELLINGS AT THE BASE OF THE THORNS, 



WHICH ARE INHABITED BY ANTS .... 36 



THE YUCCA ......... 38 



" SPANIARD'S BEARD " . . . . . . .42 



THE DODDER OR HEATHER, A COMMON BRITISH PARASITE 46 



LATHR^A SQUAMARIA (THE TOOTHWORT). ... 48 



THE RADICLE OF THE BEAN WILL TWIST IN A STRANGE 



MANNER WHEN THE SEED IS TURNED DURING GROWTH 54 



THE DANDELION is TYPICAL OF THE FLYING SEEDS . 56 



THE SEEDS OF THE BULRUSH ARE CARRIED TO GREAT DIS- 

 TANCES BY THE WIND ...... 56 



