Pteridophyta

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Related to pteridophyte: angiosperm, Bryophyta, Gymnosperms

Pteridophyta

[‚ter·ə′däf·əd·ə]
(botany)
The equivalent name for Polypodiophyta.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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ferns

ferns

This 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.
Edible Plant Guide © 2012 Markus Rothkranz
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
tree trunk vegetation: small woody or nonwoody, annual or perennials, and vascular or nonvascular plants grown on the trunk (stem) and categorized as epiphytes, pteridophytes, and bryophytes;
Six Species of VA Mycorrhizal Fungi from the Rhizosphere of Pteridophytes in Yunnan.
The number of pteridophytes at Botany Glen is comparable to the larger Ginn Woods and Wilbur Wright Fish and Wildlife Area.
The leaf thickness and leaf specific mass (LSM = the leaf dry mass to leaf area ratio) were measured on the litters of the 26 broad-leaved species, on the pteridophyte Pteridium aquilinum, and on the wide-bladed grass Arundo donax.
The most logical explanation for the lower rate of speciation in insular pteridophytes, as compared to angiosperms, is the presumed higher rates of dispersal between established pteridophyte populations because of the apparent ease of dispersal of spores via the wind (Smith 1972; Tryon 1970).
Understanding mechanisms of rarity in pteridophytes: competition and climate change threaten the rare fern Asplenium scolopendrium var.
On the other hand, compared with pteridophytes, seed plants are better able to adapt to arid conditions by the special morphology and life-history strategies, such as annual life style and pronounced succulence, deep-rooted perennials [95].
Ferrer-Castan D, Vetaas OR (2005) Pteridophyte richness climate and topography in the Iberian Peninsula: comparing spatial and nonspatial models of richness patterns.
The Carboniferous represented the peak of pteridophyte diversity and abundance (Rothwell, 1996).
The Pikopiko Fossil Forest also has 20 pteridophyte miospore types and at least eight species of fern macrofossils (Cieraad, 2003), at least two of which are fertile (Fig.