A Grammatical Dictionary of Botanical Latin

adventitious, adventive, occurring accidentally or spontaneously, coming from another source, not inherent or native, arising in other than the usual location; “used of buds, roots, etc., which develop in an irregular or unusual position” (Fernald 1950): adventicius,-a,-um (adj.A), adventicus,-a,-um (adj.A), adventivus,-a,-um (adj.A) [> L. adventicius, adj. A., coming from without, from outside sources, foreign]; also adventitius,-a,-um (adj.A); see alien;

- radix,-icis (s.f.III) adventicia, adventitious root.

- ramis adventiciis, with branches adventive; gemmae adventitiae, adventitious buds.

- ramificatio adventicia (adj.A), adventive or adventitious branching.

- septum (s.n.II) adventitium, adventitious septum.

- trichosporae e cellulis genitalibus adventiciis exorientes, trichospores arising from advenitious generative cells.

- gemmae adventiciae (adj.A), adventitious buds.

- reproductio vegetativa in radicibus per rosulas adventitias minutas, vegetative reproduction on roots by minute adventitious rosettes.

- plantae interdum ramulos adventivos e centro proferentes (Steph.), plants sometimes bringing out adventive branches from its center.

Leaf-bud: “buds from which leaves only are produced: they are called normal when produced at the axils, adventitious when they occur in places not axillary, and latent when they are undiscoverable by the naked eye” (Lindley): gemma,-ae (s.f.I) normalis (adj.B); gemma adventiva (adj.B); gemma latens (part.B), gen.sg. gemmae latentis.