Stems and wood of gymnosperms how are they different from an
Stems and wood of gymnosperms: how are they different from angiosperms?
Solution
The gymnosperms are known as softwood as they have the ability to last during the winter while the angiosperms are known as hardwood and usually changes color during winter and die.
Explanation:
Gymnosperms generally do not have vessels, so the wood is composed essentially of tracheids(Xylem tissue conducts water and mineral nutrients from the soil upward in plant roots and stems. It is composed of elongate cells with pointed ends called tracheids, and shorter, wider cells called vessel elements.). exception to this are members of the gymnosperm division Gnetophyta which do have vessels.
Angiosperms typically have both tracheids and vessels. In ring-porous wood, such as oak and basswood, the spring vessels are much larger and more porous than the smaller, summer tracheids. This difference in cell size and density produces the conspicuous, concentric annual rings in these woods. Because of the density of the wood, angiosperms are considered hardwoods, while gymnosperms, such as pine and fir, are considered softwood.
