dichotomous venation

См. также в других словарях:

• 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

• ginkgophyte — ▪ plant division Introduction       any member of the division Ginkgophyta, a group of gymnospermous plants of particular interest to paleobotanists. Two of the three genera of ginkgophytes, Ginkgoites and Baiera, are extinct. The third genus,… …   Universalium

• Equisetopsida — ▪ plant class Introduction       (division Pteridophyta), class of primitive spore bearing vascular plants. Most members of the group are extinct and known only from their fossilized remains. The sole living genus, Equisetum (horsetail), order… …   Universalium

• Ginkgo biloba — This article is about the tree. For the Goethe poem, see Gingo biloba. Ginkgo biloba Temporal range: 49.5–0 Ma …   Wikipedia

• Zamia — Taxobox name = Zamia image width = 250px image caption = Zamia furfuracea regnum = Plantae divisio = Cycadophyta classis = Cycadopsida ordo = Cycadales familia = Zamiaceae genus = Zamia genus authority = Miq. subdivision ranks = Species… …   Wikipedia

• fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… …   Universalium

• Fern — /ferrn/, n. a female given name. * * * Any of about 10,000–12,000 species (division Filicophyta) of nonflowering vascular plants that have true roots, stems, and complex leaves and reproduce by spores. Though ferns were once classified with the… …   Universalium

• 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

• Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …   Wikipedia

• Leaf — For other uses, see Leaf (disambiguation). The leaves of a Beech tree …   Wikipedia

• lycophyte — ▪ plant division Introduction       (division Lycopodiophyta or Lycophyta), any spore bearing vascular plant that is one of the club mosses (club moss) and their allies, living and fossil. Present day lycophytes are grouped in 6 genera (some… …   Universalium