A Grammatical Dictionary of Botanical Latin

abrupt, terminating or ending suddenly; broken off, separated, torn off; “suddenly terminating; as abruptly pinnated, when several pairs of leaflets are formed without any intermediate one at the end” (Lindley); sharply disconnected; steep, precipitous; changing suddenly, rather than gradually, as a leaf quickly narrowed to a point, not tapering; “changing suddenly rather than gradually, as in leaves quickly constricted to a narrow acumen” (Magill 1990); also used to refer to a pinnate leaf that has no terminal leaflet; in mycology, of the stipe, terminating suddenly; appearing as if cut off transversely (Snell & Dick 1971); with a sharp break or sudden ending: abruptus,-a,-um (part.A) [> L. abrumpo,-rupi,-ruptum 3. to break, to break off, loosen, separate, to tear off, sever]; syn. truncate, q.v., i.e. ending very abruptly as if cut straight across (Kiger & Porter 2001); see blunt;

- capsula minore basi magis abrupta, with the capsule smaller, at the base more abrupt [i.e. sharply changed].

- [fungi; a caption to plate I: Piso1ithus arenarius] exemplum mediocre basi abruptum (S&A), specimen average-size, broken off at the base.

- vexillum ovatum, basi abruptum v. 2-auriculatum (B&H), the vexillum ovate, at the base ending suddenly [i.e. truncate] or 2-auriculate.

- (moss) nervo infra apicem abrupto (Mueller), with the nerve [i.e. costa] below the apex [abruptly terminated; ending suddenly].

- (moss) folia nervo ante apicem abrupto flexuoso fuscescente praedita (Mueller), the leaves provided with a nerve [i.e. the costa] suddenly terminated, flexuose, darkish brown.

- (moss) nervo crasso ante apicem abrupto (Mueller), with the nerve thick, suddenly terminated before the apex.

- locis abruptis, in steep places.

- Patria. Ad rupes abruptos humidos (Mueller), native place: on steep moist rocks [i.e. cliffs].

- locis petrosis abruptis graminosis regionum subalpinarum et alpinarum totius Europae (Mueller), in rocky places, steep, grassy of nearly alpine regions and alpine of the whole of Europe.

- in Gallia sept. in abruptis maritimis calcareis et in maritimis Algeriae (Mueller), in northern France, in steep places [i.e. cliffs], maritime, calcareous and in the maritime [cliffs] of Algeria.

- in alpinis, locis abruptis et ad viarum margines, hic illic, sporadica (Jaeg.Sauerb.), in steep alpine places and on the margins of roads, here and there, sporadic [i.e. occasionally occurring].