Musci

Definitions

  • WordNet 3.6
    • n Musci true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales
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Webster's Revised Unabridged Dictionary
    • n. pl Musci (Bot) An order or subclass of cryptogamous plants; the mosses. See Moss, and Cryptogamia.
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Century Dictionary and Cyclopedia
    • n musci A large class of cryptogamous plants of the group Muscineæ or Bryophyta; the mosses. They are low tufted plants, a few inches in height, always with a stem and distinct leaves, producing spore-cases (sporogonia) which usually open by a terminal lid and contain simple spores alone. The germinating spore gives rise in the typical families to a filamentous conferva-like prothallium, upon which is produced the leafy plant, these together constituting the sexual generation or oophyte. The sexual organs are antheridia and archegonia, and from the fertilized oösphere proceeds the sporogonium or “moss-fruit,” which in itself comprises the non-sexual generation or sporophyte. The sporogonium or capsule, which is rarely indehiscent or splitting by four longitudinal slits, usually opens by a lid or operculum; beneath the operculum, and arising from the mouth of the capsule, are commonly one or two rows of rigid processes, collectively the peristome, which are always some multiple of four; those of the outer row are called teeth; those of the inner, cilia. Between the rim of the capsule and the operculum is an elastic ring of cells, the annulus. The Musci are classified under four orders — the Bryaceæ or true mosses (which are further divided into acrocarpous, or terminal-fruited, and pleurocarpous, or lateral-fruited), Phascaceæ, Andræaceæ, and Sphagnaceæ. See cut under moss.
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Etymology

Webster's Revised Unabridged Dictionary
L. muscus, moss

Usage

In literature:

Posteros tamen tot inventuros fore utilitates ex muscis arguor, quot ex reliquis vegetabilibus.
"The Mirror of Literature, Amusement, and Instruction" by Various
Musci and Hepaticae are common, but do not embrace a great amount of species.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
The other two subdivisions of the Musci are each represented by a single genus.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
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In science:

Schildknecht, T., Musci, R., Flury, W., et al., Optical observations of space debris in high-altitude orbits.
Global dynamics of high area-to-mass ratios GEO space debris by means of the MEGNO indicator
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