decurrent


Also found in: Medical, Encyclopedia, Wikipedia.
Related to decurrent: excurrent

de·cur·rent

 (dĭ-kûr′ənt, -kŭr′-)
adj. Botany
Having the leaf base extending down the stem below the insertion.

[Middle English, from Latin dēcurrēns, dēcurrent-, present participle of dēcurrere, to run down : dē-, de- + currere, to run; see kers- in Indo-European roots.]

de·cur′rent·ly adv.

decurrent

(dɪˈkʌrənt)
adj
(Botany) botany extending down the stem, esp (of a leaf) having the base of the blade extending down the stem as two wings
[C15: from Latin dēcurrere to run down, from currere to run]
deˈcurrently adv

de•cur•rent

(dɪˈkɜr ənt, -ˈkʌr-)

adj.
extending down the stem below the place of insertion, as certain leaves.
[1745–55; < Latin dēcurrent-, s. of dēcurrēns, present participle of dēcurrere to run down =dē- de- + currere to run]
de•cur′rence, de•cur′ren•cy, n.
de•cur′rent•ly, adv.
Translations
References in periodicals archive ?
Within Eupolypods I, the genus can almost always be distinguished by a character of its venation: in the proximal portions of the pinna, the veinlet that supplies the basal basiscopic lobe or segment of a pinnule springs from the costule; however, distally along the pinna rachis, the segments or lobes become successively more adnate and decurrent on the pinna rachis, and the veinlet supplying the lobe or segment springs from the pinna rachis, not the costule (Christensen 1920, Holttum 1986, Smith and Moran 1987).
It will take time to fully understand the long-term impacts these sprawling infernos will have on everything from the threatened Apache trout (Oncorhynchus apache) to the endangered Houston toad (Bufo houstonensis), and what the chaotic flooding throughout the heart of the country will mean for species like the threatened decurrent false aster (Boltonia decurrens) to the endangered interior least tern (Sterna antillarum).
1 mm long, free, glabrous, white except for the red apex, the adaxial ones carinate with keels decurrent on the ovary, the abaxial one obtusely if at all carinate; petals narrowly lanceolate, apex acuminate to acute, suberect at anthesis, 18-25 x 4 mm, free, purple, bearing 2 irregularly digitate-lacerate appendages 6-8 mm above the base.
The fruits are 3-winged, with wings decurrent on the pedicel.
The side shoot departs upwards at an angle of about 20[degrees] with a decurrent upper surface.
Spasticity is characterized by hypertonia that involves decurrent velocity-dependence with hypersensitivity of the stretching reflex, and possessing selectivity of anti-gravitational muscles (predominant in flexors of superior limbs and extensors of inferior limbs) (4).
Lamellae white to slightly cream, small depressed or slightly decurrent.
6 mm long, leaves of erect stems appressed with decurrent bases, subulate, 1.
24) oblong, entire, imbricate, decurrent, more or less spreading; costa pronounced, extending to the apex; walls of cells at leaf base thickened; alar cells (Fig.
These species included two endangered freshwater mussels, the Higgins' eye pearlymussel and the winged mapleleaf; two listed birds, including the threatened bald eagle and the endangered least tern; the endangered Indiana bat; the endangered pallid sturgeon; and one threatened plant, the decurrent false aster.
3 mm, set 45-90[degrees] to the rachis, each spaced 1-2 times its width, linear-lanceolate, oblong to linear, the bases decurrent basiscopically, straight or nearly so acroscopically, pinna margins entire (sterile) to undulate or slightly crenate (fertile), the apices rounded (sterile) to subacute (fertile); veins free, pinnate, branched once, not visible without transmitted light; hydathodes lacking adaxially; sori brown, round, 8-12(-18) per pinna, medial to submarginal, 0.