Descriptor : Shape of carcass external plates (IW)
Descriptor type : categorical
External plates: Plate covering incompletely one or several perforations of a wall.
Carcass: Part of wall on intervallum side.
IW: Inner wall.
- Planar
-
Planar
Planar
Planar
Planar
Planar
- Arcuate
-
Arcuate
Arcuate
Arcuate
Arcuate
- Waved
-
Waved
Waved
- S-shaped
-
S-shaped: Resembles S in longitudinal section.
S-shaped
S-shaped
S-shaped
S-shaped
S-shaped
S-shaped
S-shaped
S-shaped
- V-shaped
-
V-shaped: Resembles V in longitudinal section.
V-shaped
V-shaped
V-shaped
V-shaped
V-shaped
- Inverted-V shaped
-
Inverted V-shaped: Resembles A in longitudinal section.
Inverted-V shaped
- Fused
-
Fused: Adjacent bracts or scales of the same horizontal file are incompletely amalgamated to form a single structure covering two or more perforations of a wall.
Fused
Fused
Fused
- Cone in cone
-
Cone in cone
- Denticulate
-
Denticulate: With indented rims.
Denticulate
Hierarchy
Carcass external plates: inner carcass wall (IW) | |_ Shape of carcass external plates (IW)