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  • Brainly User
2014-10-10T15:29:58+05:30
Gymnosperms are naked seeded plants and pteridophytes are seedless spore vascular plants. Gymnosperm- tap root and Pteridophyte- advantitious roots. Gymnosperm- vessels are absent and pteridophyte- vessels are present..
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  • Brainly User
2014-10-10T15:33:16+05:30
                                        ''''''''''' gymnosperm''''''''''''''
gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule, as opposed to an angiosperm, or flowering plant, whose seeds are enclosed by mature ovaries, or fruits.
                                    '''''''''' pteridophytes'''''''
Pteridophtyes are a phylum of plants. They are the vascular plants (those having xylem and phloem tissues) that reproduce by releasing spores rather than seeds, and they include the highly diverse true ferns and other graceful, primarily forest-dwelling plants. 
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               other differences were as follows:::;::::::::::::::::::;:
(1) Gymnosperms are commonly large sized trees, shrubs or climbers and exhibit xeric characters. Pteridophytes on contrary are relatively smaller in size and are more commonly hygroscopic.

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(2) In gymnosperms, male and female gametophytes are simple, non-green and dependent on the sporophytes. They are very much reduced in comparison to the gametophytes of pteridophytes

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