bract

The bract primordium with its axillary flower primordia is dome-shaped in the beginning and then elongates.

Scape simple, erect, usually with a few small, bract like leaves.

Stipules lanceolate, ca. 4 mm, membranous, densely covered with short brown pubescence, glabrescent , basal ones bract like and persistent.

Bract base decurrent; bractlet margin membranous laterally, but apex herbaceous, acute; anther appendage apex pungent.

We previously reported that SUPERNUMERARY BRACT (SNB) regulates the transition of spikelet meristems into floral meristems in rice.

bract absent. Flowers bisexual, usually nodding at anthesis, ascending in fruit, spreading funnelform.

Bract base not decurrent; bractlet margin membranous throughout, apex obtuse; anther appendage apex obtuse.

Bract keeled; bracteoles distinct; inflorescences of spikes, flowers sunken into rachis.

Stomatal density and stomatal index on upper epidermis of petal, bract and calyx were smaller than those on lower surface.

involucral bract leaflike; heads many, hemispheric, many flowered.

Stem leaves short petiolate, as large as or slightly smaller than basal leaves; calyx at anthesis shorter than bract.

pedicel slender, pubescent, subtended by a subulate bract.

Inflorescences axillary or lateral, produced with young leaves, paniculate or racemose, pendent, flowers 1 per bract.

The results showed that stomata distributed in upper and lower epidermis of petal, bract and calyx.

Male flowers solitary in axil of each bract, with 2-4 bracteoles or not.

Stipules persistent, often becoming a rounded, dentate bract.

Flowering stem extremely short, scarcely overtopping foliage, with 1 bract concealed among basal leaves, crisped glandular villous.

Flowers spirally arranged, (1 or)3 borne in axil of a fleshy bract, appearing sunken into fleshy rachis, without bractlets, bisexual.

Stipules lanceolate, caducous, not becoming a bract.

Fruit lens-shaped, attached to midrib of accrescent, membranous, reticulately veined floral subtending bract.

bract stalk not elongated in fruit, sparsely pubescent.

1 bract subtending each flower, much broader than flower, free or connate into bell-shaped involucre.

Bract margins with linear-lanceolate teeth, apex of teeth with capitulate glands; styles 4-lobed.

ovule 1, borne abaxially on middle part of fertile bract, initially partly inverted, becoming more erect at maturity.

bracts numerous, overlapping, leathery, deciduous, apex deeply 3-lobed, each bract subtending 3 flowers.

Seeds connate with bracts, sometimes with 2 apparent lateral wings formed from bract.

Flowers from mixed buds, scattered in basal or subbasal bract axil of young branches.

With the development of flower, the stomatal density and stomatal index on the petal, bract and calyx increased firstly and then decreased.

Inflorescences spicate, lax, to 25 cm. Flowers subsessile, solitary from bract axils.

Flowers hermaphroditic, with 1 bract and 2 bracteoles, axillary or clustered into spikes.

Involucral bract blade undivided, linear-lanceolate, 1--3 cm, villous, apex obtuse or acute.

Flowers solitary in bract axils.

Petiole and leaf blade reddish when young, green when mature; bract to 5 cm.

Bract margin entire or densely and minutely serrulate to fimbriate; pedicels spreading or slightly ascending, 1--3. 5 cm, slender.

Scape arising from center of leaf rosette, erect, simple, with 3--30 small, bract like leaves.

Glomerules 1-3-flowered, inserted in bract axils, forming a paniculate inflorescence at apex of dwarf branchlets.

Flowers axillary, 3 per bract, bisexual.

bract blade palmately parted, broadly rhombic, 1--2 cm, abaxially sparsely puberulent, margin dissected lobed.

Involucral bract blade undivided or 3-lobed, obovate, 1--3 cm, margin dentate or rarely entire.

Armed at leaf axils; bract often becoming 2 spines, rarely 1.

first bractlet similar to bract but apex 1--3-cuspidate.

each flower with 1 bract and 2 bracteoles, scarious.

Involucral bract blade 3-parted, obovate-rhombic, 1--3 cm, puberulent.

Male flowers 3-5 per bract; capsule pilose or glabrous.

Bract and bracteoles suborbicular, ca. 2 mm, shorter than calyx; mature bud 4-5 cm.

most proximal bract usually leaflike, shortly petiolate, others lanceolate or linear, 5. 5--11. 5 mm.

cauline leaves 1(or 2), or reduced and bract like.

first bractlet similar to bract but apically 2- or 3-cuspidate.

bract blade unequally 3-parted or 3-lobed, rhombic or obovate, 4--7 cm, margin dentate or entire.

Leaves lanceolate, 5-8 X 2-4 mm, along with bract, calyx, and corolla densely glandular pubescent abaxially.

3 (2) Female bracts ovate-rhombic, 3-7 flowers in each bract; styles 5-7 mm, exserted (cultivated).

teeth along bract margins and sometimes along leaf blade margins aristate and with a claviculate apical gland;

Female flower subtended by large foliose, membranous bract to which pedicel is adnate;

Flowers bisexual, often in clusters of 2--4, sometimes solitary, small, subtended by a bract and a few bracteoles;

teeth along bract and leaf blade margins with a capitate to flattened-capitate (depressed) apical gland;

peduncle with an infertile, membranous involucral bract above middle;

Female flowers subtended by a small, entire bract, adnate to bracteoles and virtually submerged in wing complex;

Inflorescences terminal, or pseudo lateral when basal involucral bract seemingly a continuation of stem, usually many flowered;

bract and bracteole borne on distal part of pedicel, linear-lanceolate, proximally pubescent;

Flowers solitary in bract axils, bisexual, forming dense or loose, spike like inflorescences on upper stem and branches;

involucral bract leaflike, often shorter than inflorescence;

Flowers produced on short shoots, each flower subtended by a bract or bract suppressed;

Pedicel bearing a bract and bracteole toward either base or apex, pubescent, puberulent, or glabrous;

Study on the Bract Abaxial Epidermis of the Genus Scirpus from Shandong Province

Leaves opposite, becoming alternate and bract like in inflorescence;

Calyx lobes green, bract like, base rounded to cordate, apex acuminate, unequal;

Inflorescence borne in axil of leaf or scalelike bract, a solitary, many-flowered umbel;

peduncle 1--4 cm (terminal ones longer), with linear bract at middle, sometimes with a flower in axil of bract;

Flowers often solitary, subtended by a scarious bract and enclosed at base by 2 short bracteoles;

Male flower subtended by small, linear bract, pedicellate;

bract and bracteole borne on proximal part of pedicel, often at or near base;

cone scales developing after ovules originate in bract axils;

Female flowers at base of inflorescences, larger than male ones, each bract-axil with only 1 female flower;

Male flowers with an entire bract;

Inflorescence a raceme or simple panicle, with 1 lanceolate or triangular bract at base;

bract 1, opposite each flower, alternate [or absent]. Calyx actinomorphic, 5-lobed, sometimes winged;

flowers paired, enclosed by a bract;

Study on tissue culture from bract explant of dwarf Euphorbia pulchrrima

bract ovate; perianth shallowly cupular, puberulent, outer lobes broadly lanceolate, ca. 1. 8 mm, inner ones slightly shorter than outer;

Female flowers larger than male, 1 per bract, pedicellate;

Flowers bisexual, 1 per bract axil, pedicellate;

Involucral bract blade unequally 3-lobed, elliptic-ovate to oblong-ovate, ca. 1 cm;

bract 3-parted with segments fasciated;

Female inflorescence borne in axil of scale like, membranous bract, of 1 umbel, basally not prophyllate;

Inflorescence borne in axil of leaf or scalelike bract on young branches, of 1 umbel, basally not prophyllate;

each bract usually subtending a small dichasium with 1-3 male flowers;

basal involucral bract leaflike, 1--3 cm. Flower solitary;

ovules 1-numerous per bract axil, erect;

Male inflorescence borne in axil of leaf or scalelike bract, of 1 umbel, basally not prophyllate;

Inflorescence in axil of bract, of 1 umbel, basally not prophyllate;