A Grammatical Dictionary of Botanical Latin

vivax,-acis (adj.B), compar. vivacior, vivacius (adj.B), superl. vivacissimus,-a,-um (adj.A): tenacious of life, long-lived, vivacious; lasting long, enduring, durable; lively, vigorous, vivacious, exuberant, gay, vibrant, vivid; (of sulfur) burning briskly, inflammable; lively, vigorous, burning; enduring, long lasting, durable;

- apium vivax, abl.sg. apio vivaci, the celery that ‘long remains green’ (Lewis & Short).

- color ceterum vivacius sordidiusve aurantius, the color otherwise a more lively or more dull orange.

- [fungi] colore vivace praepulchro, quo oculos e longinquo allicit, sylvarum (quas praeamat) abiegnarum muscosarum umbras mire exhilarat (S&A), with a color gaily, intensely beautiful, by which it attracts the eyes from a distance, it enlivens wonderfully the shadows (which it loves above all) of mossy, fir forests.

- [fungi] pulvis spermaticus e croceo ferrugineus; var. B., pileo cinnamomeo ac rubedine subtus etiam minus vivace puraque distincta (S&A), the reproductive powder [i.e. spores] from crocus-yellow to rusty-red; the var. B. is distinct by the cinnamon-colored pileus and by the reddness below also less vivid and pure.

- Species illae Medicae quae jumentorum pabulo seruntur, radice sunt perenni & vivaci (Ray), those species of Medica which are planted for the fodder of draft animals, possess a perennial and long-lived root.

[NOTE: dative [here ablative] + forms of esse, ‘to be,’ denotes possession].