Algae : (noun)
1: primitive chlorophyll-containing mainly aquatic eukaryotic
organisms lacking true stems and roots and leaves [syn: alga]
Based on WordNet 2.0
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Alga \Al"ga\, n.; pl. Alg[ae]. [L., seaweed.] (Bot.)
A kind of seaweed; pl. the class of cellular cryptogamic
plants which includes the black, red, and green seaweeds, as
kelp, dulse, sea lettuce, also marine and fresh water
conferv[ae], etc.
Based on Webster's Revised Unabridged Dictionary
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Cryptogamia \Cryp`to*ga"mi*a\ (kr?p`t?-g?"m?-?), n.; pl.
Cryptogami[ae] (-?). [NL., fr. Gr. krypto`s hidden, secret
_ ga`mos marriage.] (Bot.)
The series or division of flowerless plants, or those never
having true stamens and pistils, but propagated by spores of
various kinds.
Note: The subdivisions have been variously arranged. The
following arrangement recognizes four classes: -- I.
{Pteridophyta,_or_Vascular_Acrogens.">{Pteridophyta, or Vascular Acrogens. These include
Ferns, Equiseta or Scouring rushes, Lycopodiace[ae]
or Club mosses, Selaginelle[ae], and several other
smaller orders. Here belonged also the extinct coal
plants called Lepidodendron, Sigillaria, and
Calamites._II._{Bryophita,_or_Cellular_Acrogens">Calamites. II. {Bryophita, or Cellular Acrogens.
These include Musci, or Mosses, Hepatic[ae], or
Scale mosses and Liverworts, and possibly
Charace[ae],_the_Stoneworts._III._{Alg[ae]">Charace[ae], the Stoneworts. III. {Alg[ae], which
are divided into Floride[ae], the Red Seaweeds, and
the orders Dictyote[ae], O["o]spore[ae],
Zo["o]spore[ae], Conjugat[ae], Diatomace[ae], and
Cryptophyce[ae]._IV._{Fungi">Cryptophyce[ae]. IV. {Fungi. The molds, mildews,
mushrooms, puffballs, etc., which are variously grouped
into several subclasses and many orders. The Lichenes
or Lichens are now considered to be of a mixed nature,
each plant partly a Fungus and partly an Alga.
Based on Webster's Revised Unabridged Dictionary (1913)
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