cryptogam


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cryptogam,

in botany, term used to denote a plant that produces spores, as in algaealgae
[plural of Lat. alga=seaweed], a large and diverse group of primarily aquatic plantlike organisms. These organisms were previously classified as a primitive subkingdom of the plant kingdom, the thallophytes (plants that lack true roots, stems, leaves, and flowers).
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, fungiFungi
, kingdom of heterotrophic single-celled, multinucleated, or multicellular organisms, including yeasts, molds, and mushrooms. The organisms live as parasites, symbionts, or saprobes (see saprophyte).
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, mossesmoss,
any species of the class Bryopsida, in which the liverworts are sometimes included. Mosses and liverworts together comprise the division Bryophyta, the first green land plants to develop in the process of evolution.
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, and fernsfern,
any plant of the division Polypodiophyta. Fern species, numbering several thousand, are found throughout the world but are especially abundant in tropical rain forests. The ferns and their relatives (e.g.
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, but not seeds. The term cryptogam, from the Greek kryptos, meaning "hidden," and gamos, meaning "marriage," was coined by 19th-century botanists because the means of sexual reproduction in these plants was not then apparent. In contrast, in the seed plants the reproductive organs are easily seen; the seed plants have accordingly been termed phanerogams, from the Greek phaneros, meaning "visible."

cryptogam

[′krip·tə‚gam]
(botany)
An old term for nonflowering plants.

cryptogam

(in former plant classification schemes) any organism that does not produce seeds, including algae, fungi, mosses, and ferns
References in periodicals archive ?
The survey was extended to include cryptogams and surface soil characteristics.
In the United States, cryptogam species are common in the Arctic and boreal North, the Pacific Northwest, the upper Midwest, and northern New England where suitable climatic conditions prevail (Walker, 1995; Longton, 1997; Bedford and Godwin, 2003).
Cryptogams (mosses, lichens, liverworts) are abundant in the pastures and appear to make a substantial contribution to surface soil protection.
In cryptogam tundra, the peat is the result of the growth and accumulation of bryophytes together with cyanobacteria, algae, diatoms, and, occasionally, lichens.
Generally, expectations are that, at equilibrium, the ratio of the erosion rates for cryptogam covered and completely bare soil surfaces ([C.
coli (commonly known as Travelers' Diarrhea) and has another product, CryptoGAM, in clinical trials to prevent cryptosporidiosis in AIDS patients.
Myco-photobiontal selection in a Mediterranean cryptogam community with Fulgensia fulgida New Phytologist 153:317-326.
Cryptogam cover and physical and micromorphological properties.
Other news: In a revision to a previously disclosed clinical trial progress goal, ImmuCell announced that it expects to have results from a Phase I/II prophylactic clinical trial of its product, CryptoGAM, by the second quarter of 1996.
ImmuCell has another product, CryptoGAM, in clinical trials to prevent cryptosporidiosis in AIDS patients.
Cryptogam species composition on decaying logs in the Duke Forest (North Carolina, USA; 36 [degrees] N, 79 [degrees] W) appears to be strongly related to the species of the log and to the presence or absence of bark (S.
NASDAQ/ICCC, BSE/IMU) today announced that it has reacquired the marketing rights to CryptoGAM from Univax Biologics Inc.