Group : Inner wall

Inner wall: Internal part of the skeleton, separating central cavity and skeletal structures, composed by a porous carcass, simple or coated by an additional sheath.

../images/schema_IW.png

Inner wall

List of descriptors

  1. Structure of inner carcass wall (IW)
  2. Stipules
  3. Carcass perforations: inner wall (IW)
  4. Type of carcass pores (IW)
  5. Relationship between rows of carcass pores and intersept (IW)
  6. Relationship between rows of carcass pores and tabulae (IW)
  7. Constitution of carcass canal system (IW)
  8. Building of carcass canals (IW)
  9. Shape of carcass canals zone A (IW)
  10. Porosity of carcass canals zone A (IW)
  11. Relationship between carcass canals zone A and intersept (IW)
  12. Direction of carcass canals zone A (IW)
  13. Shape of carcass canals zone B (IW)
  14. Direction of carcass canals zone B (IW)
  15. Porosity of carcass canals zone B (IW)
  16. Building of carcass perforations (IW)
  17. Carcass external plates: inner carcass wall (IW)
  18. Type of carcass external plates (IW)
  19. Localisation of carcass bracts (IW)
  20. Relationship between carcass annuli and tabulae (IW)
  21. Shape of carcass external plates (IW)
  22. Direction of carcass external plates (IW)
  23. Type of morphological tubes (IW)
  24. Additional sheath
  25. Type of additional sheath (IW)
  26. Type of microporous sheath (IW)
  27. Repartition of bracts on secondary sheath (IW)
  28. Type of sieve (IW)
  29. Repartition of micropores (IW)