A Grammatical Dictionary of Botanical Latin

decurrent, running downward; with the basal margins of a leaf extending down the stem below the leaf insertion, sometimes forming ridges; “prolonged below the point of insertion, as if running downwards (Lindley); “running down the stem; decurrent; e.g. a leaf base that forms a flange or wing that merges with the stalk below it” (Stearn 1996);

(in fungi) used of gills running down the stipe; with the basal margins of a leaf extending down the stem below the leaf insertion, sometimes forming ridges;

(hepatics) “of the basal end of a margin which extends as a ridge down the stem below the main part of the insertion; or the postical end of a margin which extends below the highest point of insertion” (Paton):

decurrens,-entis (part.B), decursivus,-a,-um (adj.A);

- folia marginibus basalibus longe decurrentibus, leaves with basal margins long decurrent.

- pileo lamellis longe stipite decurrentibus praedito, with a pileus provided with gills running far down the stipe.

- Stigmata saepius in carpella sessilia, nonnunquam introrsum decurrentia (B&H), the stigmas more often running downward into sessile sometimes toward the inside decurrent carpels.

- stigmata 2, placentis opposita, erecta, divaricata v. in unum connata, interdum secus apicem sty'li decurrentia, stigmas 2, opposite to the placentae, erect, divaricate on connate into one, sometimes decurrent along the apex of the style.

- nux cristulis angustis 2 - 5 ab apice stylifero ad medium breviter vel longe decurrentibus costata (B&H), nut costate [ribbed] with the cristules [small crests] narrow, 2-5, shortly or long-decurrent from the styliferous apex to the middle.

- stylus brevis, 3-fidus, stigmatibus decurrentibus v. terminalibus (B&H), the style short, 3-fid, with the stigmas running downward or terminal.

- stamina 5, cum petalis inserta, filamentis breviter liberis secus calycis tubum decurrentibus (B&H); stamens 5, inserted with the petals, with filaments shortly free, running downward along the tube of the calyx.

- sepalum posticum cum petalis galeatum, lateralia ovario oblique affixa v. longe decurrentia. (B&H), postical sepal together with the petals galeate, the lateral ones attached obliquely to the ovary or long decurrent.

decursively pinnate, “the leaf seemingly pinnate but the leaflets decurrent along the petiole” (Jackson): decursive pinnatus,-a,-um (adj.A), decursivo-pinnatus,-a,-um (adj.A).

Sterigma,-atis (s.n.III), q.v., abl.sg. sterigmate, nom. & acc. pl. sterigmata [> Gk. sterigma, a prop or support]: “(obsol.) the elevated lines or plates upon stems produced by the bases of decurrent leaves” (Lindley); “any leafy prolongation or elevated line from the blade of a leaf down the stem by decurrence” (Jackson).