Question

Which of the following did not evolve from Psilophyton?
A) ferns
B) Ginkgo
C) Conifers
D) Bryophytes

Answer 1

Psilophyton is a genus name which gives rise to various plant species such as vascular plants. Those vascular plants which are extinct. It is an old age plant species which was first discovered during Devonian age. They are dichotomously branched, having two leafless stems. Example – Cook Sonia. They also contain sporangia at their tips.

Complete answer:
Option A ferns- ferns arise from vascularized plants which do not bear any flowers or seeds. They develop directly from spores. Ferns have tissues which help in uploading nutrients and water to upper parts of plants in the dominant phase of the sporophyte life cycle.
Option A is not the correct answer.
Option B Ginkgo- ginkgo have fan-shaped leaves which are developed from China and Japan. Ginkgo are also arising from vascularized plants.
Option B is not the correct answer.
Option C Conifers- conifers are cone-shaped structured plants which bear cone-shaped fruits and seeds. They are developed from vascularization too. Conifers are sub-groups of gymnosperms. They are woody plants and they are waxy too.
Option C is not the correct answer.
Option D Bryophytes- bryophytes having liverworts, mosses etc. these plants belong to the non-vascularized section of plants.

Therefore, Option D is the correct answer.

Note:
As the, Psilophyton contains plants having vascular in structure, bryophytes on other hand belonging to non-vascular groups do not match the criteria. Bryophytes live in moist places and grow in swampy shady areas where moisture content is high. They usually grow in groups and look bulb-structured when seen through naked eyes.