266 
Fic. 
Fic. 
32h 
BOTANICAL GAZETTE [apRIL 
8. Growing flower bud; transverse section in plane ab in fig. 9. X 22. 
9. Growing flower bud; long'tudinal section along line wy in fig. 8 
. 10. Ovule; longitudinal section. * 97. 
. 11. Ovule at beginning of winter. x 220. 
. 12. Pollen tube with cellulose te grown in gelatin. X 330. 
. 13. Style; transverse section. x 2 
. 14. Hibernating pollen tube. X 550. 
. 15. Endosperm cell walls with crystals. X 550. 
16. Seedling in seed coats. X 1. 
17. Flower in winter; longitudinal section. < 9 
. 18. Carpels in winter; diagrammatic longitudinal section. * 20. 
. 19. Ovule; longitudinal sections. x 35. 
. 20. Seed coats. X 175. 
. 21. Ovule in spring; longitudinal section. x 80. 
. 22. Endosperm cell stored with food. * 550. 
. 23. Embryo and suspensor. X 550. 
. 24. Cotyledon in seed. X 220. 
. 25. Nucellus of Corylopsis pauciflora in spring. * 55°. 
. 26. Mature anther of .Liguidambar styraciflua; transverse section. 
. 27. Nectary of the same; transverse section. * 35. 
. 28. Seed of the same, nearly mature. X 5. 
. 29. Pollen mother-cell. * 1745. 
. 30. First division of pollen mother-cell. X 1745. 
. 31. Second division of pollen mother-cells. 1745. 
. 32. Pollen grain, in pollen mother-cell. < 1745- 
. 33- Pollen grain. 1745. 
. 34. Pollen grain. < 1745. 
. 35- Pollen grain sprouted in gelatin. < 1745. 
. 36. Pollen grain, winter condition; Hamamelis arborea. X 1745. 
- 37. Pollen grain, winter condition; Corylopsis pauciflora, X 1745: 
. 38. Ripe fruit. x 1 
. 39. Fruit; Lspaitisdined section. X 1.6. 
. 40. Fruit; transverse section. x 1.6. 
. 41. Fruit, after discharge of seed; transverse section. % 1- 6. 
- 42. Opening layer of capsule; side view. x 1.6. 
