- annular tracheid
- кольцевая трахеида
English-Russian mining dictionary. В.П. Манышев.
English-Russian mining dictionary. В.П. Манышев.
tracheid — Xylem cell with thickened pitted or annular walls and tapered ends … Expanded glossary of Cycad terms
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
Cavitation — is defined as the phenomenon of formation of vapour bubbles of a flowing liquid in a region where the pressure of the liquid falls below its vapour pressure. Cavitation is usually divided into two classes of behavior: inertial (or transient)… … Wikipedia
Baragwanathia — Taxobox name = Baragwanathia fossil range = Early Ludlow (Gorstian, late Silurian)cite journal author = Rickards, R.B. year = 2000 title = The age of the earliest club mosses: the Silurian Baragwanathia flora in Victoria, Australia journal =… … Wikipedia
Asteroxylon — Taxobox fossil range = Early Devonian image width=150px regnum = Plantae divisio = Lycopodiophyta classis = Lycopodiopsida ordo = Drepanophycales familia = Asteroxylaceae genus = Asteroxylon genus authority = Kidston Lang 1920 species =… … Wikipedia