A Grammatical Dictionary of Botanical Latin

Articulation, node; “1. a joint, popularly applied to the nodes of grasses; 2. the basal portion of the sensitive bristle in Dionaea” (Jackson); articulatio,-onis (s.f.III), abl. sg. articulatione; articulus,-i (s.m.II), q.v.; artus,-us (s.m.IV), q.v.; junctura,-ae (s.f.I), q.v., abl. sg. junctura;

(in algae) “the uncalcified joint between segments of coralline algae” (Abbot & Hollenberg); (see also geniculum; see articulus,-i (s.m.II);

- [Hypecoum] capsula siliquaeformis, transverse nodosa seu articulata. Semina inter articulationes solitaria (DeCandolle), the capsule like a silique, transversly nodose or articulated. The seeds between the articulations solitary.

- articulus inferior pedicelliformis; superior globosus (B&H), the lower articulation (member, joint) pedicelliform, the upper globose.

- articulus inferior brevis, aspermus ; superior echinatus v. tuberculatus (B&H), the lower member short, without seed, the upper echinate or tuberculate.

- filamenta glabra papulosa v. pilosa, in generibus nonnullis (e.g. in Senecione) infra apicem quasi articulata supra articulationem varie incrassato-dilatata (B&H); filaments glabrous, pustular or pilose, in some genera (e.g. in Senecio) below the apex as if articulated, above the articulation variously thickened dilated.

Disarticulatio,-onis (s.f.III), abl. sg. disarticulatione: deterioration into joints or segments.

Geniculum,-i (s.n.II), abl. sg. geniculo: in geniculate algae, the flexible non-calcified point or points on the alga frond, or tree-like alga branches, that serve as ‘knees’ or ‘hinges’ between the calcified intergenicula; “an uncalcified joint or articulation between the calcified segments of a jointed coralline alga;”

Intergeniculum,-i (s.n.II), abl. sg. intergeniculo: (in geniculate algae) the calcified spaces on the alga frond, or tree-like alga branches, between the flexible non-calcified genicula (’knees’ or’hinges’); “a calcified segment between the uncalcified joints of a coralline alga;” see articulation; see geniculum,-i (s.n.II).