Descripteur : Repartition of bracts on additional sheath (IW)

Type du descripteur : categorical

Bract: Plate stems from lintels which incompletely covering a single pore.

Lintel: Skeletal structure separating and bounding adjacent pores/canals.

Additional sheath: Second part of a wall composed by two zones (carcass + sheath).

IW: Inner wall.

One bract covering one micropore

Micropores: Small and simple perforation of microporous sheath or sieve.

No bract on additional sheath

Hiérarchie

Type of additional sheath (IW)
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 |_ Repartition of bracts on additional sheath (IW)

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