Useful english dictionary. 2012.
class Psilotatae — noun whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs • Syn: ↑Psilopsida, ↑class Psilopsida, ↑Psilotatae • Hypernyms: ↑class • Member… … Useful english dictionary
Psilopsida — noun whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs • Syn: ↑class Psilopsida, ↑Psilotatae, ↑class Psilotatae • Hypernyms: ↑class • Mem … Useful english dictionary
division Pteridophyta — noun containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta • Syn: ↑Pteridophyta • Hypernyms: ↑division • Member Holonyms:… … Useful english dictionary
Psilotales — noun lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots • Syn: ↑order Psilotales • Hypernyms: ↑plant order • Member Holonyms: ↑Psilopsida, ↑class Psilopsida, ↑Psilotatae … Useful english dictionary
Pteridophyta — noun containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta • Syn: ↑division Pteridophyta • Hypernyms: ↑division • Member… … Useful english dictionary
Psilotatae — noun whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs • Syn: ↑Psilopsida, ↑class Psilopsida, ↑class Psilotatae • Hypernyms: ↑class • Mem … Useful english dictionary
order Psilotales — noun lower vascular plants having dichotomously branched sporophyte divided into aerial shoot and rhizome and lacking true roots • Syn: ↑Psilotales • Hypernyms: ↑plant order • Member Holonyms: ↑Psilopsida, ↑class Psilopsida, ↑Psilotatae, ↑ … Useful english dictionary
Fern ally — is a general term covering a somewhat diverse group of vascular plants that are not flowering plants and not true ferns. Like ferns, these plants disperse by shedding spores to initiate an alternation of generations. There were originally three… … Wikipedia
Campbell, Douglas Houghton — ▪ American botanist born Dec. 16, 1859, Detroit, Mich., U.S. died Feb. 24, 1953, Palo Alto, Calif. American botanist known for his research concerning modes of sexual reproduction in mosses and ferns. His work intensified a controversy… … Universalium
Olearia colensoi — Scientific classification Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida … Wikipedia
