Phaenerogams

Gymnosperms:Definition
The term Gymnosperm was first used by Scientist Theophrastus in his book ‘Enquiry into plants’. The word Gymno means nacked and Sperma means seed. Due to the presence of nacked seeds, they are also called Nacked seed-bearing plants. the Gymnosperms are called Phaenerogams with ovaries. Gymnosperms are woody plants that can range in size from enormous trees to little shrubs. Sequoia sempervirens is as tall as a 36 story building. Perhaps the smallest Gymnosperm is a Cycad, Zamia pygmea whose fronds are only 4 or 5 cm long. Sequoiadendron giganteum, on the other hand, is the largest and oldest.