Descriptor : Type of microporous sheath (OW/SW)

Descriptor type : categorical

Microporous sheath: Thin skeletal plate supported by carcass and pierced by micropores (lesser diameter than pores).

OW: Outer wall.

SW: Single wall.

Attached

Attached: Microporous sheath attached directly to carcass pore lintels.

Carcass: Part of wall on intervallum side.

Lintel: Skeletal structure separating and bounding adjacent pores.

Independent

Independent: Microporous sheath supported by short beams arising from carcass pore lintels.

Lintel: Skeletal structure separating and bounding adjacent pores.

Carcass: Part of wall on intervallum side.

isn't included in the term

Hierarchy

Type of additional sheath (OW/SW)
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 |_ Type of microporous sheath (OW/SW)