释义 |
PteridophytaenUK ThesaurusNoun | 1. | Pteridophyta - containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophytadivision Pteridophytadivision - (botany) taxonomic unit of plants corresponding to a phylumkingdom Plantae, plant kingdom, Plantae - (botany) the taxonomic kingdom comprising all living or extinct plantsgenus Pecopteris - genus of Carboniferous fossil fernsnonflowering plant, pteridophyte - plants having vascular tissue and reproducing by sporesfern family - families of ferns and fern alliesfern genus - genera of ferns and fern alliesclass Filicinae, class Filicopsida, Filicinae, Filicopsida - fernsclass Psilopsida, class Psilotatae, Psilopsida, Psilotatae - whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacsorder Psilophytales, Psilophytales - Paleozoic simple dichotomously branched plants of Europe and eastern Canada including the oldest known vascular land plantsclass Equisetatae, class Sphenopsida, Equisetatae, Sphenopsida - horsetails and related formsclass Lycopodiate, class Lycopsida, Lycopodiate, Lycopsida - club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta |
PteridophytaenUK
Pteridophyta[‚ter·ə′däf·əd·ə] (botany) The equivalent name for Polypodiophyta. ferns fernsThis is a debatable plant. Must eat cooked or steamed, not raw, although some people do eat fiddleheads raw and end up getting throat and gastric cancers. Fiddleheads are the young furled (coiled up) heads of a young fern. Asians dip them into boiling water, then dry them and then grind them into powder, and whenever they cook food, they add that powder to their food. Apparently it helps emulsify and break down bad fats in the body. You can chop up the stem and steam it, tastes similar to green beans, can be eaten with a little bit of butter and salt. To cook fiddleheads, remove the yellow/brown skin, then boil the sprouts twice with a change of water between boilings to remove toxins. The roots of the common Male Fern (Dryopteris filix-mas), was used to kill tapeworms, but many consider it too toxic. When using ferns, consult with local expert to double check. Some are carcinogenic.Pteridophyta a large group of higher plants to which are sometimes assigned all higher seedless plants except mosses (Bryophyta). Unlike the bryophytes, the sporophyte—the asexual generation—is well developed and divided, except in Psilotophyta, into stems, leaves, and roots. Spores develop, from which emerges the gametophyte—the sexual generation. The gametophyte is poorly developed, almost undifferentiated, and bears sexual organs (in males, antheridia, and in females, archegonia). After fertilization, another asexual generation develops. The Pteridophyta include ferns, horsetails, clubmosses, selaginellas, isoetes, psilotaceous plants, and many extinct groups of plants. They were formerly regarded as a single taxonomic group —a division (or subdivision)—and were divided into a number of classes. On the basis of an extensive study of the vegetative and reproductive organs of extinct and extant plants, the group Pteridophyta has been divided into several natural divisions, each of which has its own history. These include the Psilotophyta, Lycopodiophyta, Equisetineae, and Polypodiophyta. MedicalSeepteridophytePteridophytaenUK Related to Pteridophyta: Coniferophyta, Anthophyta, Gnetophyta, Cycadophyta, SphenophytaSynonyms for Pteridophytanoun containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk fernsSynonymsRelated Words- division
- kingdom Plantae
- plant kingdom
- Plantae
- genus Pecopteris
- nonflowering plant
- pteridophyte
- fern family
- fern genus
- class Filicinae
- class Filicopsida
- Filicinae
- Filicopsida
- class Psilopsida
- class Psilotatae
- Psilopsida
- Psilotatae
- order Psilophytales
- Psilophytales
- class Equisetatae
- class Sphenopsida
- Equisetatae
- Sphenopsida
- class Lycopodiate
- class Lycopsida
- Lycopodiate
- Lycopsida
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