A Grammatical Dictionary of Botanical Latin

Mesembria,-ae (s.f.I) > Gk. mesEmbria (s.f.I), midday, noon, “when the sun is at the meridian;” also “the country towards the meridian, the South” (Lewis & Short).

Mesembriacus,-a,-um (adj.A): of Mesembria, a Thracian town on the Black Sea.

Mesembrinos,-E,-on (Gk.adj.) Gk. mesEmbrinos: circulus mesembrinos, the meridian (Glare).

Mesembrianthemum,-i J. Breyne (Aizoaceae), “midday flower” > Gk. mesEmbria, ‘noon,’ + anthemon, ‘flower.’ Breyne published the name ‘Mesembrianthemum.’ The name was changed by Johann Jacob Dillenius to Mesembryanthemum (“flower with the pistil in the center”) from Gk. mesos, ‘middle’ + embryon, ‘pistil,’ or ‘embryo.’ Carl Linnaus used the Dillenius spelling (with the ‘y’) in his description of Mesembryanthemum species, a change sanctioned by the ICBN (after Wikipedia, “Mesembryanthemum” Oct. 2019).