Definition & Meaning | English word BRACT

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Definitions of BRACT

1. (botany) A leaf or leaf-like structure from the axil out of which a stalk of a flower or an inflorescence arises.

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Examples of Using BRACT in a Sentence

• The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract).
• Identification of the different species is based on the size and arrangement of the leaves, the size and shape of the cones, and whether the bract scales of the cones are long and exserted, or short and hidden inside the cone.
• The original description was unifloral inflorescences with white flowers, spathe formed by one bifid bract, staminal filaments independently fused to the perigonial tube and the fruit being a clavate trilocular capsule.
• The small yellow-green hermaphrodite flowers are produced in clusters of five to eleven in early summer with a leafy yellow-green subtending bract, have a rich, heavy scent; the trees are much visited by bees to the erect flowers which are held above the bract; this flower arrangement is distinctly different from that of the Common Lime Tilia × europaea where the flowers are held beneath the bract.
• 5–2 mm long, again similar to other Cupressus and unlike the crescent-shaped, non-pointed bract on the scales of Chamaecyparis cones.
• The flowers are borne on inflorescences in the form of heads; each head contains many small florets, each floret cupped in a membranous, saucer-shaped bract.
• The cones are 10–20 cm long and 4–5 cm broad, with about 150–200 scales, each scale with an exserted bract and two winged seeds; they disintegrate when mature to release the seeds.
• The cones are 10–16 cm long and 4 cm broad, with about 150 scales, each scale with an exserted bract and two winged seeds; they disintegrate when mature to release the seeds.
• The flower stalk is deeply furrowed, ending in an ovoid inflorescence of many small flowers each with a pointed bract.
• The main (flower) stem grows to 30–120 cm tall, bearing 2–4 leaves and an apical inflorescence 2–5 cm diameter comprising a number of small bulbils and none to a few flowers, subtended by a basal bract.
• Male inflorescences spicate, densely flowered, with several flowers at each node subtended by a minute bract.
• The hardened "shells" covering the seeds are technically the fruit-case or involucre (hardened bract), with the bract also referred to as "capsule-spathe" or "sheathing bract" by some past botanical works.
• Each flower is subtended by two bracts, the outer bract usually larger and clasping the inner bract.
• The individual flowers are small and are tightly packed on a fleshy stem called a spadix which is surrounded by a white or yellow but otherwise leaf-like bract called a spathe.
• In botany, a glume is a bract (leaf-like structure) below a spikelet in the inflorescence (flower cluster) of grasses (Poaceae) or the flowers of sedges (Cyperaceae).
• There is a single egg-shaped to circular bract and a pair of similar bracteoles at the base of each flower immediately below the five sepals.
• The adaxial (upper) surface of each bract bears two parallel rows of ovules which are encased in cup-like structures formed by scales.
• The small, inconspicuous flowers of Jack-in-the-pulpit are borne on a fleshy, spike-like inflorescence called a spadix ("Jack"), which is enclosed (or nearly enclosed) by a large, sometimes colorful bract called a spathe ("pulpit").
• The flower bract (involucre) is resinous and consists of multiple overlapping rows of phyllaries with tips that are strongly curled outward, sometimes curling back to form a circle.
• The flower is subtended by a three-lobed epicalyx, it is composed of a bract and two bracteoles, which are all united into a single structure.
• Malvidin 3-rutinoside is a pigment responsible for bract color in Curcuma alismatifolia (the Siam tulip).
• Each main branch of the umbel has an involucral bract and each of the secondary umbels ("umbellules") have 2 or 3 bracteoles at the base.
• It is a herbaceous perennial which produces flowers in the typical aroid structure: a densely crowded inflorescence called a spadix is subtended by one large bract called a spathe (occasionally two spathes are produced, with the upper spathe smaller).
• Flower calyx purplish, 10–15 mm (shorter than the inner floral bract), tube 2–4 mm, tip bifid 2–3 mm deep, ca 1/3 of the calyx length; corolla 10–20 mm, erect, straight or nearly so, maroon, puberulent with reflexed hairs; lips subequal in length: galea pale, whitish, with a yellow-tip, finely pubescent and dark purple dorsally: lower lip shorter than upper: throat moderately inflated, 4–6 mm wide; stamens 2: filaments glabrous or nearly so, dilated above base and forming a U-shaped curve near the anther: anther sac 1 (with vestiges of a second), ciliate.
• The 1913 botanical illustration of this bladderwort species depicts a delicate 2 to 12-inch stem growing along or just below the surface in very shallow water on a slender root or basal system; leaves are tiny or absent, often buried in the sand or mud; the showy blue to purple flower blooms from August to September with a two-lipped petal held up by a thin stem, the upper lips facing upwards and the three-lobed lower lip having a projection or sac extending from the petal base; fruit forms in a two-valved sac holding small seeds, on a separate stem emerging from a bract just above the base of the plant, as if its stem is sitting on a couch or in a flower pot, the fruit being dry and splitting open when ripe; and bladderwort reproduces both sexually by seed and asexually by producing compact buds or turions which break free from the parent plant and spread out nearby to start new plants.

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