A Grammatical Dictionary of Botanical Latin

tertius,-a,-um (adj.A, an ordinal number): third, q.v.; see ordinal numerals;

- Genera Plantarum, volumen tertium, Genera of Plants, third volume (B&H).

- tertia squamarum series mediana interdum costae insidens, a median third row of scales sometimes situated upon the costa (Steph.).

- pars tertia, abl. sg. parte tertia, the third part (pars, gen.sg. partis (s.f.III).

- ager tertia vice arabitur, the field shall be plowed for the third time.

- antheridia solitaria ad furcas secundas et tertias (rarius primas) ramulorum primariorum nonnunquam ad ramulos secundarios posita, antheridia solitary, at second and third (rarely first) forks of the primary branchlets sometimes on secondary branchlets placed (Stearn 1983).

- calycibus hispidissimis in quinque dentes setaceos subaequales rectos ad tertiam partem usque fissis (Boissier), with the calyx very hispid divided to the third part [i.e. the upper third divided] into five bristle-like, nearly equal, straight teeth.

- Choisyus haec duo jungit sub nomine Laplaceae, quam, adjecta tertia specie Asiatica cum quarta Cubensi, a Haemocharicle, Salisb., distinguit, sed character nos effugit (B&H), Choisy joins these two [sc. genera] under the name Laplaceae, which, he distinguishes, having added a third Asiatic species with a fourth Cubean one, from Haemocharide, Salisb., but the character [i.e. distinguishing mark] escapes us.

- species 1 v. 2, Abyssiniae et Africae australis incolae, et tertia in Peninsula Indiae orientale nuperrime detecta (B&H), species 1 or 2, an inhabitant of Abyssinia and Africa, and a third in the Peninsula of eastern India most recently discovered.