[6] 



78 



FLOWERING PLANTS 





Vegetative organs (continued}. 



ARRANGEMENT OF LEAVES, STEMS AND ROOTS IN DIFFERENT TYPES 

 II. Rhizome. 



B. Examine the creeping underground stem of Solomon's Seal (Polygonatum). The main stem is a 

 horizontal rhizome remaining below the ground, bearing leaf scales at its nodes, and adventitious roots. 



The apical bud of this rhizome turns vertically upwards and grows out into the leafy flowering shoot. 

 This dies down in the autumn and the plant remains below ground with food stored in the fleshy rhizome. 



Growth is continued by a bud arising in the axil of a scale leaf on the rhizome. 



