A Grammatical Dictionary of Botanical Latin

labiatus,-a,-um (adj.A); lipped, with a well-developed lip; “a term applied to a monopetalous calyx or corolla which is separated into two unequal divisions, the one anterior, and the other posterior, with respect to the axis” (Lindley); “lipped; belonging to the Labiatae” (Fernald 1950); with the corolla tubular at the base and expanded above into one or two lips;

- nectarium profunde 2-labiatum, erectiusculum (Swartz), the nectarium deeply 2-lipped, nearly erect.

- pet. 5 in corollam tubulosam 5-fidam subbilabiatam coalita (DeCandolle), petals 5, fused into a tubulose, 5-divided, nearly bilatiate corolla.

- corolla bilabiata, labio supero bifido breviore, labii inferí tripartiti lacinia media majore, tubo cylindraceo subincluso intus barbato (F. Mueller), the corolla bilabiate, with the upper lip shortly bifid, larger than the middle lacinia of the tripartite lower lip, with a cylindric, nearly included tube bearded on the inside.

- pétala 5, aequalia v. subbilabiata [sub-2-labiata](B&S), petals 5, identical or nearly two-lipped.

- calyx subglobosus, primum clausus, mox in laciniae 5 sub-2-labiatim connatas ruptus (B&H), calyx nearly globose, at first shut, soon ruptured into 5 laciniae fused nearly as 2-lips.

- calyx saepius 4-lobus, rarius valde inaequaliter 2-labiatus (B&H), calyx more often 4-lobed, more rarely strongly unequally 2-lipped.

- calyx distinctius bilabiatus et corolla calyce brevior (B&H), calyx more distinctly bilabiate and the corolla shorted than the calyx.

- corolla unilabiata (F. Mueller), the corolla with one lip.

- calyx campanulatus vix ad medium labiatus (F. Mueller), calyx bell-shaped scarcely lipped to the middle.

- [Flores labiatae] florum simplicium monopetalorum differentia desumuntur ab eorum forma, the differentiae [i.e. distinguishing traits] of the simple [i.e. not compound] monopetalous flowers are selected from their shape; the Rotati from a wheel; the Labiati or Personati are named from the muzzle of animals [i.e. the monopetalous personate or labiate corolla “when compressed, the whole resembles the mouth of a gaping animal; as the corolla of Antirrhinum” (Lindley), see personatus,-a,-um (adj.A).

Labiatae (pl.f.I), gen. pl. Latiatarum, [lipped], an older family name for species with the flowers typically having petals fused into an upper lip and a lower lip; the family name now called the Lamiaceae (after the genus Lamium).

Labiate process (diatoms): rimoportula,-ae (s.f.I), abl.sg. rimoportula, q.v.