ceramidiumn.
/sɛrəˈmɪdɪəm/ Botany.
The outer covering of the cystocarp, found in algæ of the family Rhodomelaceæ.
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the world > plants > particular plants > algae > [noun] > red algae > part or cell of
nemathecium1830
ceramidium1849
tetraspore1857
trichophore1860
phycoerythrin1866
coccidium1867
kalidium1872
cystocarp1875
palmelline1879
tetragonidium1882
rhodoplast1886
nemathece1889
siphon1889
tetrasporangium1890
1849 W. H. Harvey Man. Brit. Marine Algae (ed. 2) 69 In the ceramidium the conceptacular fruit is brought to its highest development. This organ is ovate or urn-shaped, furnished with an apical pore, and containing a tuft of pear-shaped spores, rising from the base of the cavity.
1902 Encycl. Brit. XXV. 270/1 In Rhodomelaceæ there is a special urn-shaped envelope surrounding the sporogenous filaments. This is a ceramidium.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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