ray tracheid

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• ray tracheid — noun Etymology: ray (II) : any of various chiefly marginal tracheids in the vascular rays of some gymnosperms that have bordered pits and lack living contents but resemble typical ray cells in position and shape …   Useful english dictionary

• tree — treelike, adj. /tree/, n., v., treed, treeing. n. 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground. 2. any of various shrubs,… …   Universalium

• Tree — /tree/, n. Sir Herbert Beerbohm /bear bohm/, (Herbert Beerbohm), 1853 1917, English actor and theater manager; brother of Max Beerbohm. * * * I Woody perennial plant. Most trees have a single self supporting trunk containing woody tissues, and in …   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

• 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

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• Sherwin Carlquist — Nacimiento …   Wikipedia Español

• Metasequoia foxii — Temporal range: late Tiffanian Paleocene …   Wikipedia

• vascular tissue — noun tissue that conducts water and nutrients through the plant body in higher plants • Hypernyms: ↑plant tissue • Hyponyms: ↑stele, ↑cambium, ↑vascular bundle, ↑vascular strand, ↑fibrovascular bundle, ↑ …   Useful english dictionary