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Indusium is a fragile membranous construction that protects the sporangium or sorus inwards pteridophytes Based on the origin, Indusium may last truthful or false. True indusium: In the figure, corporation red circle – True indusium 1. Influenza A virus subtype H5N1 fragile membranous construction arises from the lower side in addition to covers the sorus of sporangia (refer figure) 2. Originates from the lower side of the pinnae equally an epidermal outgrowth 3. Specialized construction formed on the lower side of pinnae for protection of sorus 4. Seen inwards Dryopteris False indusium: In the figure, corporation red circle –false indusium originating from the margins 1. It is formed yesteryear the curving of margins of the pinnae or leaflet that protects the marginal sorus. 2. Originates from the upper side of the pinnae. 3. Formed yesteryear the curving of margins of pinnae. 4.  Seen inwards Pteris, Adiantum

Bryophytes : The term bryophyta is used equally a collective refer to stand upward for a grouping of plants that includes the mosses (musci), hornworts together with liverworts (Hepaticae) growing predominantly inwards amphibious environment. Pteridophyta ( Pteridophytes ): Influenza A virus subtype H5N1 partitioning of the plant kingdom , comprising the vascular cryptogams. They are flowerless plants exhibiting alternation of 2 distinct together with different generations, the start is a non sexual, spore bearing sporophytic generation. The minute is a sexual, gametophyte generation, inwards which the plants to a greater extent than ofttimes than non are relatively small, together with without differentiation of stem, leaves together with root The pteridophytes includes the next classes: Lycopsida ( Lycopodium , Selagnella ), Sphenopsida ( Equisetum ), Psilopsida ( Psilotum ), together with Filicopsida (ferns) Bryophytes vs Pteridophytes Bryophytes Pteridophytes ...