A Grammatical Dictionary of Botanical Latin

Unicornuus,-i (s.m.II), gen.sg. unicornui, abl.sg. unicorno, nom. unicornui, acc.pl. unicornuos, dat.& abl.pl. unicornis; “pure Latin for monoceros, the unicorn” (Lewis & Short) [> L. unicornis,-e (adj.B), one-horned].

Monoceros,-otis (s.m.III), abl.sg. monocerote unicorni = Gk. monokerOs, a unicorn (Lewis & Short);

- “asperrimam autem feram monocerotem, reliquo corpore equo similem, capite cervo, pedibus elephanto, cauda apro, mugitu gravi, uno cornu nigro media fronte cubitorum duum eminente (Pliny)” ...(Lewis & Short), additionally, a most fierce (wild) animal, the monoceros [i.e. unicorn], [in the rest of the body] similar to a horse, with the head [similar to a deer], with the feet to an elephant, with the tail to a [wild boar], with a [harsh] bellowing, with a single [glossy] black horn projecting in the middle head, of two cubits [i.e. 36 inches].

Acostaea unicornis; Flickingeria unicornis; Lockhartia unicornis; Specklinia unicornis.