body and other features

body and other features - aerial stem only no leaves nor...

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body and other features Lycopodium and Selaginella small, creeping plants; Isoetes a small hydroilica; phyte with sharp pointed linear leaves jointed, ribbed, hollow stems impregnated with small leaves in whorls at the nodes; sporangia on special stems or terminal on vegetative ones dichotomously branched
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Unformatted text preview: aerial stem only, no leaves, nor roots; rhizomes with rhizoids anchor the plant; endomycorrhizae present in rhizomes two kinds: eusporangiate and leptosporangiate; leaves develop with circinate vernation; small group of water ferms all derived from a terrestrial ancestor...
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