In monocot stem like Zea mays, vascular bundles are conjoint, collateral and closed. In vascular bundles, the lowermost protoxylem vessels and xylem parenchyma cells dissolve forming a water containing schizolysigenous cavity called protoxylem cavity or lacuna or lysigenous cavity. Protoxylem cavity and protophloem may be absent in the smaller vascular bundles in maize.
Water containing cavities in vascular bundles are found in
NEET UG 2012 — Botany Anatomy of Flowering Plants
2012mcqeasy
Water containing cavities in vascular bundles are found in
Official previous-year question
Held on 30 Apr 2012 · Verified 9 Jul 2026.
Options
- A
sunflower
- B
maize
- C
Cycas
- D
Pinus
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