- Conifers have tracheids. Woody angiosperms have vessels. Tracheids are
dead, single-celled transport "pipes" for liquids in xylem. Tracheids are
found in Gymnosperms - plants that have naked or uncovered seeds such as
conifers. Tracheids are enlarged parenchyma cells.
Click here for pictures.
(see "Plugging in Wall 1")
More words on vessels.
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