American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Botany Having the leaf base extending down the stem below the insertion: decurrent leaves.
Century Dictionary and Cyclopedia
- In botany, extending downward beyond the place of insertion: as, a decurrent leaf (that is, a sessile leaf having its base extending downward along the stem). Also decurring.
- adj. botany Pertaining to plant parts that extend downward, most often applied to leaf blades that partly wrap or have wings around the stem or petiole and extend down along the stem.
- adj. mycology Pertaining to lamellae (the gills of a mushroom) that are broadly attached and extend down the stipe of the mushroom.
- adj. obsolete running or extending downwards.
GNU Webster's 1913
- adj. (Bot.) Extending downward; -- said of a leaf whose base extends downward and forms a wing along the stem.
- From Latin decurrens — de ("down") + curro ("to run"). (Wiktionary)
- Middle English, from Latin dēcurrēns, dēcurrent-, present participle of dēcurrere, to run down : dē-, de- + currere, to run; see kers- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“+Tubes+ greenish-yellow, turning dark green, adnato-decurrent, that is, broadly attached to the stem and running down it, ⅛ inch long.”
“The gills are adnato-decurrent, that is, partly attached and prolonged down the stem.”
“CLITOPILUS Fr. In the rosy-spored agarics belonging to this genus the gills are decurrent, that is, extend for some distance down on the stem.”
“a considerable distance, as in the so-called decurrent leaves, at other times the leaves are prolonged at their base into lobes, which are directed along the stem, and are united with it.”
“They are "decurrent," or running along the stalk; a broad strip at the base of each leaf is attached to the stalk.”
“The toadstool is tawny yellow, and produces white spores; the gills are decurrent, and the stem bears a ring.”
“Fronds oblong-lanceolate, five to twelve inches long, twice pinnate, the pinnæ often pinnatifid or cut-toothed, ovate-lanceolate, decurrent on the winged rachis.”
“The lower pinnæ pinnately parted into three to five divisions, those of the fertile fronds oblong or linear-oblong; those of the sterile, obovate or ovate, crenulate, decurrent at the base.”
“Pinnules lanceolate, strongly decurrent so that the pinnæ are merely pinnatifid.”
“Basal segments decurrent and forming a many-angled wing along the main rachis.”
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