Descripteur : Type of vertical intervallar structures
Type du descripteur : categorical
Vertical intervallar structures: Longitudinal and often radial structures inside the intervallum (septa, taeniae...).
Intervallum: Space enclosed between the walls.
- Septa
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Septum (plur. septa): Planar porous partition linking both walls of a two-walled cup with a radial-longitudinal distribution.
Septa
- Pseudosepta
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Pseudoseptum: Planar or slightly waved irregularly porous partition linking both walls of a two-walled cup with a radial-longitudinal distribution.
Pseudosepta
Pseudosepta
- Taeniae
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Taenia (plur. taeniae): Intervallar porous structure, non-planar, often dichotomous with a radial-longitudinal distribution.
Taeniae
- Pseudotaeniae
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Pseudotaeniae: Taeniae with synapticulae at each interpore node.
Taenia (plur. taeniae): Intervallar porous structure, non-planar, often dichotomous with a radial-longitudinal distribution.
Synapticula (plur. synapticulae): Narrow horizontal rod linking two adjacent vertical intervallar structures. - Dictyonal network
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Dictyonal network: Three-dimensional intervallar structure composed by taeniae with tetragonal pores linked by synapticulae at each interpore.
Taenia (plur. taeniae): Intervallar porous structure, non-planar, often dichotomous with a radial-longitudinal distribution.
Synapticula (plur. synapticulae): Narrow horizontal rod linking two adjacent vertical intervallar structures.
Dictyonal network
Dictyonal network
