propagulen.
/ˈprɒpəɡjuːl/, U.S. /ˈprɑpəˌɡjul/ Chiefly Botany.
A portion of a plant, fungus, etc., that is capable, when detached, of giving rise to a new individual by asexual or sexual reproduction (e.g. a leaf bud, bulbil, seed, or spore). Also occasionally: any of the products of asexual reproduction in certain invertebrates. Cf. propagulum n.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > spore
sporule1819
zoocarp1824
zoospore1842
propagule1858
swarm-spore1859
macrozoospore1875
zygozoospore1881
swarm-cell1882
sporangiospore1889
planospore1904
planont1914
1858 R. G. Mayne Expos. Lexicon Med. Sci. (1860) 1022/1 Propagulum, applied by Willdenow to the round corpuscles which are solitary or agglomerated upon the surface of the thallus of the Lichenes: a propagule.
1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 196 In Monospora (Sol.) stalked gemmæ or propagules are produced at the forks of the branchlets, and readily become detached, apparently replacing the sexual organs.
1907 F. E. Clements Plant Physiol. & Ecol. 114 Bud-bearing stems are variously modifed to constitute propagules... According to the form which the stem takes, such propagules are termed stolons, offsets or runners, rhizomes, corms, bulbs and bulbils.
1953 Watsonia 3 42 The derivatives of ‘viviparus’ were introduced by Linnaeus... The term does indicate the ecologically significant fact that the propagules are dispersed in a ‘living’ (i.e. not dormant) condition in most cases.
1973 New. Phytol. 72 153 At the lower pH, dissolved sulphur dioxide is very toxic..so that a lichen propagule would stand little chance of surviving in the presence of this pollutant.
1990 Lancet 13 Oct. 925/1 Cryptococci may remain viable throughout the year and, therefore, may represent a potential reservoir of infectious propagules.
2005 Fungal Genetics & Biol. 42 554/2 Reproductive propagules produced by lichens include vegetative structures such as isidia and soredia which contain both the fungal and photosynthetic partner.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.1858