1920] HAINING—GXETUM 



445 



Fig. ii.— G. sp. 15: 2-cell stage of secondary suspensor; tube placed to 

 underlie these cells; X425. 



Fig. ik7. — G. sp. 15: same tube under lower magnification; X50. 



Fig. 12. — G. sp. 15: 4-cell stage; X425. 



Fig. 12(7. — G. sp. 15: same tube under lower magnification ; X50. 



Fig. 13. — G. sp. 59: group of cells irregularly formed; walls too faintly 

 stained to see underlying ones; X425. 



Fig. 14. — G. sp. 15: swollen end of primary suspensor, showing ribbon of 

 secondary suspensor; s, secondary suspensor; X25. 



Fig. 15. — G. sp. 59: groups of meristematic cells at the apex of second- 

 ary suspensor tissue; X50. 



Fig. 15a. — G. sp. 59: same under lower magnification, showing location of 



groups; X25. 



PLATE XLI 



Fig. 16. — G. / 



budding branches; semi-diagrammatic reconstruction; en, endosperm. 



Fig. 16a. — G. funiculare: embryo sac, showing position of tube in fig. 16; 

 semi-diagrammatic; X5. 



Fig. 17. — G. funiculare: branches penetrating endosperm from tangle of 

 tubes without; in ripe fruit; diagram en, endosperm. 



Figs. 18-28. — G. sp. 15. 



Fig. 18. — Section of tip of secondary suspensor, showing group of meri- 

 stematic cells and structure of tissue; X2. 5. 



Fig. 19. — Section of body of embryo showing stage before "foot 1 ' is 

 differentiated; cot, cotyledon; ac, central apical cone; r, root tip; X25. 



Fig. 20. — Section of body of embryo; X25. 



Fig. 21. — Section of older embryo; X7. 5. 



Fig. 22. — Embryonic body: gross material; X7. 



Fig. 23. — Embryonic body: cotyledons and "foot" (/) differentiated; gross 

 material; X7. 



Fig. 24. — Same, later stage; X7. 



Fig. 25. — Same, later stage; X7. 



Fig. 26. — Root and hypocotyledonary stem outside of seed; X?- 



Fig. 27. — Longitudinal section of young laticiferous cells in basal part of 

 embryo; X107.5. 



Fig. 28.— Longitudinal section of laticiferous cells from nearer apex; 

 X107.5. 



