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Figs. 135 and 136. Undergrowth in the South Mexican rain-forest. Upper figure: 

 in the centre, a rubiaceous plant with variegated velvety le.ives; to the right and left, 

 Scitamineae. Lower figure : in the centre, Begonia sp. From a photograph by 

 G. Karsten. 



To face p. 292.] 



