Cook: EmBryoLocy oF RHIZOPHORA S77 
g- 13. Cross-section of ovary showing the one fertile and the aan eer 
ay ovules ; embryo (emd), endosperm (end), and sac (o, 7. t the 
age as e 9. 
Fig. 14. tig of embryo showing plumule (.), vascular system (v. s.), and sus- 
pensor (sz). 
Fig. 15. Part of embryo showing plumule (x) and vascular system (v. s. ). 
Fig. 16. Tip of cotyledon showing vascular system and connections with the 
surface. 
Fig. 17. Diagrammatic drawing showing relation of parts; embryo (emb), endo- 
sperm (ed), sac or outer integument (0. 7.), and ovary 
ig. 18. Archesporium and two tapetal cells. From same ae as figure 2, 
Fig. 19. Archesporium. From same preparation as figure 
Fig. 20. Nucellus and megaspores. From same rieepabation as figure 
Fig. 21. Embryo-sac showing egg-apparatus, From same eitrasiog as = ine 5. 
Fig. 22, Egg and one synergid. 
Fig. 23. Part of embryo-sac showing endosperm-nucleus and pollen-tube (4. 4). 
Fig. 24. Plumule. From same preparation as figure I 
Fig. 25. Endosperm (end), and part of the wall of the sac or outer intgument 
(0. 7.). From the same SuEiates as figures I0 a 
Fig. 26. Surface of cotyledon. From same ccna as figure I 
Fig. 27. solos of cotyledon showing modified columnar a From same 
Preparation as figure 
Fig. 28. Basen (end) and integument or wall of sac (9. 7. ). From same 
. as figure 16. 
Fig. 29. Vascular system. Same age as figure 
‘ Fig. 30. Vascular system showing formation of eens tissue. Same age as figure 
9. 
