Porosity |
5. Diffuse-porous |
Vessel arrangement |
  |
Vessel grouping |
  |
Solitary vessel outline |
  |
Perforation plate |
13. Simple 14. Scalariform 15. with up to 10 bars |
Intervessel pits |
22. Alternate |
Intervessel pit size |
25. Small: 4-7 μm |
Vestured pits |
  |
Vessel-ray pitting |
31. Reduced borders; round/angular 34. Unilaterally compound and coarse |
Helical thickenings in vessel elements |
36. Present 37. Throughout body of V-elements |
Tangential diameter of vessel lunima |
40. <50 μm |
Vessel frequency in no./mm2 |
48. 20-40 |
Mean vessel element length |
53. 350〜800 μm |
Tyloses and deposits in vessels |
56. Tyloses common |
Wood vesselless |
  |