Thallophyta, Bryophyta, and Pteridophyta are called cryptogams. Gymnosperms and angiosperms are called phanerogams. Discuss why. Draw one example of gymnosperms.
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Solution
Cryptogams:
Cryptogams are lower plants that produce spores to reproduce.
They lack true stems, roots, leaves, flowers, or seeds and are plant-like organisms.
It includes algae, lichens, moss, ferns, fungi, slime molds, and bacteria.
Cryptogams refer to hidden reproduction as no seed is generated. They are non-seed-producing plants.
Phanerogams:
Phanerogams are plants that bear seeds and have well-differentiated reproductive tissues.
The plant body is divided into roots, stems, and leaves. They possess conducting elements such as xylem and phloem.
Phanerogams include gymnosperms and angiosperms.
Phanerogams mean seed-bearing plants and thus the name.
Examples of gymnosperms are Ginkgo, Sago palm, Melinja, and Sugi.