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G 



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1913(6). 



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,), M. G. 1911. 



^/^ 



Notes 

 1912. Note 



Annals of Botany, xxv. 1101. 

 I vis in Gnetum, L. c. xxvi. 621. 



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Martius 



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EXPLANATION OP THE PLATES. 



Plate 3L 



Pigs. 1, 10-23 = Gnetum africanum ; Figs. 2-9 = G. Gnemon. 



Fig. 1. Female spike of G. africanum, showing aborted ovules and immature ovules and seeds. 



Natural size. 

 Fig. 2. Median longitudinal section through an ovule from the lowest node of an androgynous spike of 



G. Gnemon. v.*. = vascular system (diagrammatic) j e.*.= embryo-sacs; 1,2, 3, 4 = envelopes. 



