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Peristome
Peristome Per"i*stome, n. [Pref. peri- + Gr. ?, ?, mouth.]
1. (Bot.) The fringe of teeth around the orifice of the
capsule of mosses. It consists of 4, 8, 16, 32, or 64
teeth, and may be either single or double.
2. (Zo["o]l.)
(a) The lip, or edge of the aperture, of a spiral shell.
(b) The membrane surrounding the mouth of an invertebrate
animal.
Meaning of Peristomes from wikipedia
- structure. Some plants, fungi, and s****ed
gastropods have
peristomes. In mosses, the
peristome is a
specialized structure in the
sporangium that allows...
-
gastropod mollusks (a
snail s****), the lip is the free
margin of the
peristome (synonym: peritreme) or
aperture (the opening) of the
gastropod s****...
-
called the
stoma (meaning "mouth") and is
surrounded by one or two
peristomes. A
peristome is a ring of
triangular "teeth"
formed from the
remnants of specially...
- are rigid, and the
calyptrae are hairy. Most
species have
nematodontous peristomes with 32–64
teeth in
their sporangium; some early-diverging
genera instead...
-
dispersing the
spores to a new location.
Mosses do not have elaters, but
peristomes which change shape with
changes in
humidity or
moisture to
allow for a...
- is
derived from its symmetrical,
erect and urn-like
capsules that lack
peristomes,
these features characterising the genus. They are
commonly found on exposed...
-
Fissidens limbatus commonly known as Herzog's pocket-moss, is a moss in the
family Fissidentaceae. This
species is
found growing in high
elevations in...
- Bryopsida. It is
common throughout the
whole world.
Members have a
double peristome with
alternating tooth segments. The
classification of the Bryidae. Superorder:...
- with two species. The
defining feature of the
family is the 4-toothed
peristome. This
family of
mosses is most
commonly found in
northern latitudes. Tetraphis...
- its
strongly constricted upper pitchers,
which bear a
greatly reduced peristome and a
reflexed lid with
numerous bristles on its
lower surface. Nepenthes...
