gonidiumn.
/ɡəʊˈnɪdɪəm/ Botany.
1. One of the cells filled with chlorophyll which are formed beneath the cortical layer in the thallus of lichens; now known to be imprisoned algæ.
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the world > plants > particular plants > lichen > [noun] > part(s) of
pelt1759
pelta1760
scutellum1760
scyphus1777
shield1796
podetium1814
apothecium1830
cistella1832
rhizine1832
scypha1832
soredium1836
amphigastria1842
gonidium1845
macrogonidium1853
hypothallus1855
crustaceous lichens1856
pycnide1856
perianth1857
isidium1866
thamnium1866
endospore1875
perigynium1882
pseudocyphella1882
thecium1882
parathecium1921
soralium1921
1845 E. Tuckerman N. Amer. Lichens 29 The gonidia exist primarily as the gonimous layer.
1856 W. L. Lindsay Pop. Hist. Brit. Lichens 58 The gonidium is a cellular bud, a reproductive cell.
1877 [see gonidial adj. at Derivatives]. 2.
a. A reproductive cell produced asexually in algæ.
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1889 in Cent. Dict. Gonidium.
b. The conidium in fungi.
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1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 233 All other unicellular and non-sexual organs of reproduction we shall not term spores, but gonidia or conidia.
1889 in Cent. Dict. Gonidium.
Derivatives
goˈnidial adj.
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the world > plants > particular plants > lichen > [adjective] > of or characterized by parts
angiocarpous1835
tartareous1839
nucleiform1840
gonidial1845
variolarioid1845
hypothalline1855
gonidic1856
gymnocarpous1856
isidioid1856
gonimic layer1857
nucleiferous1857
glebulose1866
heteromerous1875
homoeomerous1875
crustose1879
scyphose1879
apothecial1882
soredial1882
placodioid1911
isidial1921
isidiate1959
1845 E. Tuckerman N. Amer. Lichens 29 The gonidial propagation will be first described.
1877 A. W. Bennett tr. O. W. Thomé Text-bk. Struct. & Physiol. Bot. vi. 286 At the line where they meet the gonidia almost always constitute a zone of variable thickness, the gonidial layer.
1882 S. H. Vines tr. J. von Sachs Text-bk. Bot. (ed. 2) 273 The septum bulges out and developes [sic] into a new gonidial receptacle.
goˈnidic adj. of or pertaining to gonidia.
ΘΚΠ
the world > plants > particular plants > lichen > [adjective] > of or characterized by parts
angiocarpous1835
tartareous1839
nucleiform1840
gonidial1845
variolarioid1845
hypothalline1855
gonidic1856
gymnocarpous1856
isidioid1856
gonimic layer1857
nucleiferous1857
glebulose1866
heteromerous1875
homoeomerous1875
crustose1879
scyphose1879
apothecial1882
soredial1882
placodioid1911
isidial1921
isidiate1959
1856 W. L. Lindsay Pop. Hist. Brit. Lichens 38 A thin, bright-green, gonidic layer.
gonidiˈogenous adj. producing or having the power to produce gonidia.
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1882 Crombie in Encycl. Brit. XIV. 557/1 The origin of the first Cortical Gonidiogenous Cellules.
goˈnidioid adj. resembling the gonidia of lichens.
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1857 M. J. Berkeley Introd. Cryptogamic Bot. 341 Gonidioid cells in various conditions.
1882 Crombie in Encycl. Brit. XIV. 556/2 Many of these forms are more or less similar to ‘gonidioid’ algæ.
goˈnidiose adj. containing or provided with gonidia.
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1882 Crombie in Encycl. Brit. XIV. 558/2 Plants..in which the thallus is but sparingly gonidiose.
goˈnidiophore n. = conidiophore n. at conidium n. Derivatives.
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1887 tr. Goebel's Outl. Classif. & Morphol. Plants 131 Besides these large gonidiophores, the mycelia of many genera also bear [etc.].
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018).
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