scalariform vessel

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Vessel element — A vessel element is one of the cell types found in xylem, the water conducting tissue of plants. Vessel elements are typically found in the angiosperms but absent from most gymnosperms such as the conifers. Vessel elements are the building blocks … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Magnoliidae — ▪ plant subclass Introduction subclass of woody or herbaceous flowering plants belonging to the class Magnoliopsida. Members of the Magnoliidae are dicotyledonous plants that retain some primitive anatomic and morphological… … Universalium
Xylem — Multiple cross sections of a flowering plant stem showing primary and secondary xylem and phloem[1] Xylem is one of the two types of transport tissue in vascular plants. (Phloem is the other). The word xylem is derived from the Classical Greek… … Wikipedia
lower vascular plant — ▪ biology Introduction formerly pteridophyte, also called vascular cryptogam, any of the spore bearing vascular plants, including the ferns, club mosses, spike mosses, quillworts, horsetails, and whisk ferns. Once considered of the… … Universalium

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