BIOLOGICAL CLASSIFICATION
KINGDOM PLANTAE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lycopodiophyta-Selaginella sp.
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Anthopyta-Anthoceros sp.
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Gnetophyta-Cycas sp.
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Hepatophyta-Pinus sp.
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Detailed explanation-1: -The genus Selaginella P. Beauv. comprises 700–750 species across the world, which constitute a separate family (Selaginellaceae) of the extant lycophytes (Jermy 1990; PPG I 2016).
Detailed explanation-2: -Selaginella and Lycopodium are pteridophytes with primitive plant bodies with adventitious roots, rhizophores, stems and leaves. They both belong to the same class – Lycopodiopsida.
Detailed explanation-3: -The phylum lycophyta is believed to be the oldest remaining group of all the vascular plants and are thought to have evolved more than 400 million years ago. Included in the lycophytes are club mosses, quillworts and spike mosses plus a number of extinct groups such as the scale trees.
Detailed explanation-4: -Three lycophyte orders are recognized: the club mosses (Lycopodiales), the quillworts and their allies (Isoetales), and the spike mosses (Selaginellales).