Descripteur : Pores shape of tabulae
Type du descripteur : categorical
Tabula (plur. tabulae): Transverse porous partition linking both walls of a two-walled cup.
NB: subdivided pores and concentrical pores are often similar on tabulae. Examine walls to discriminate them or choose both states.
- Simple pores
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Simple: Circular perforation.
Simple pores
Simple pores
- Slitlike pores
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Slitlike: Elongate elliptical shaped.
Slitlike pores
- Pecten
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Pecten: Thin-tooth comb (with rods) structure.
Pecten
Pecten
Pecten
- Subdivided pores
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Divided pore: Pores irregularly divided by radial protrusions of lintels.
Divided pores
Divided pores
Divided pores
Divided pores
- Concentrical pores
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Concentrical pores: Pores are grouped into more or less discrete clusters.
- Irregular pores
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Irregular: No geometrical pattern.
Irregular pores
- Microporous membrane
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Microporous membrane: Thin horizontal structure irregularly porous.
