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Registros recuperados: 87 | |
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Stoffers, A.L.. |
Trees or shrubs. Leaves alternate, simple. Stipules wanting. Inflorescence consisting of lateral or axillary racemes, spikes or clusters. Flowers hermaphrodite or rarely unisexual and then polygamous, actinomorphic. Calyx 5-lobed, imbricate, persistent, the tube partly or completely adnate to the ovary. Corolla often divided nearly to the base, 5—10-lobed, imbricate. Stamens numerous, in 1—3 series; filaments usually slightly united in clusters at the base of each corolla segment; anthers 2-celled, globose, with longitudinal dehiscence, innate. Ovary inferior to half-inferior, 2—5-locular; style 1, slender; stigma more or less capitate. Ovules commonly 2 in each locule, pendulous, anatropous, on an axile placenta. Fruit a drupe or berry, usually 1-seeded.... |
Tipo: Article / Letter to the editor |
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Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/503240 |
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Stoffers, A.L.. |
Shrubby or rarely herbaceous half-parasites, usually more or less fleshy. Leaves simple, coriaceous, opposite, alternate or verticillate, sometimes reduced to scales. Stipules wanting. Flowers actinomorphic, hermaphrodite or unisexual, monoecious or dioecious, with slightly differentiated perianth or with sepals and petals and then 2—3-merous. Stamens as many as and opposite the tepals, more or less united with them or free; anthers usually 2-celled. Ovary inferior and usually sunken in the axis, mostly without differentiation of placenta and ovules; style one or wanting; stigma entire or lobed. Disk annular or wanting. Fruit drupaceous or baccate, with sticky pericarp. Seed one. Endosperm present. Embryo with 2 or 3—6 cotyledons. About 1300 species in c.... |
Tipo: Article / Letter to the editor |
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Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/503233 |
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Stoffers, A.L.. |
Monoecious, marsh or aquatic plants, with perennial, creeping rootstocks and erect, terete stems. Leaves alternate, linear or strap-shaped, sheathing at the base, flat, slightly convex on the back. Flowers unisexual, densely crowded in simple, compact, cylindric spikes. Male inflorescence terminal and separated from the female spike or contiguous to it; each spike subtended by spathaceous, usually fugacious, bracts and divided at intervals by smaller caducous bracts. Perianth consisting of bristles. Male flowers with 3, rarely 1—7 stamens; the filaments free or connate; the anthers linear or oblong, basifixed, 2-celled, with longitudinal dehiscence; the connective produced beyond the cells in a conical, carnose acumen; pollen grains simple or compound.... |
Tipo: Article / Letter to the editor |
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Ano: 1963 |
URL: http://www.repository.naturalis.nl/record/503191 |
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Stoffers, A.L.. |
Trees or shrubs. Leaves usually alternate, simple and coriaceous. Stipules wanting. Flowers solitary or in few-flowered clusters in the axils of the leaves, rarely in terminal or axillary racemes, regular, usually hermaphrodite. Bracteoles often 2 under the calyx and sepaloid. Sepals usually 5, free or slightly connate, imbricate. Petals 4-many, usually 5, free or connate into a ring or a short tube, imbricate. Stamens numerous, often united at the base and adhering to the corolla; anthers 2-celled with longitudinal dehiscence. Ovary superior or rarely semi-inferior, 2—10-celled; styles as many as the cells, free with pointed stigmas or united with a 3—5-lobed stigma. Ovules 1-many in each cell, on axillary placentas, pendulous or erect. Fruit a berry or a... |
Tipo: Article / Letter to the editor |
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Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/503200 |
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Stoffers, A.L.. |
Lianas or sometimes herbs, shrubs or trees. Leaves alternate, simple, often cordate or reniform, entire to deeply lobed. Stipules wanting. Flowers solitary or in axillary fascicles or corymbs, actinomorphic or zygomorphic, hermaphrodite. Perianth simple, coloured, united and variously 3-lobed, rarely with 3 rudimentary petals. Stamens 5, 6, 12 or ∞, free or connate to the style. Ovary inferior or half-inferior, mostly 4—6-locular, sometimes nearly apocarpous. Ovary numerous, anatropous, on axile placentas. Fruit a septicidal capsule. Seeds with endosperm and small embryo. About 600 species in 7 genera mostly in the tropics and subtropics, especially in South America; only a few species in the temperate regions. |
Tipo: Article / Letter to the editor |
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Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/503231 |
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Stoffers, A.L.. |
Evergreen trees or shrubs. Leaves opposite or rarely alternate. Stipules interpetiolar, soon deciduous. Flowers solitary or in axillary, forked or cymose inflorescences, hermaphrodite, actinomorphic. Receptacle campanulate. Sepals persistent, free. Petals as many as the sepals, 4—8 (or rarely 3—16), free, inserted on the rim of the receptacle and alternating with the calyx lobes. Stamens twice as many as the petals, inserted on or at the base of the disc; filaments free, short; anthers introrse, usually 2-celled or sometimes divided into numerous pollensacs. Disc epi- or perigynous, often lobed. Ovary inferior or partly inferior, mostly 2-locular; style simple, filiform to cylindric; stigmas small, capitate or lobed. Ovules 2 to many, anatropous, pendulous... |
Tipo: Article / Letter to the editor |
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Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/503255 |
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Stoffers, A.L.. |
Trees, erect or climbing shrubs or herbs, often with simple or stellate hairs, scales or viscid glands. Leaves alternate, simple or palmately compound. Stipules small, glandular or spinose, or wanting. Flowers solitary in the axils of the leaves or in axillary or terminal racemes, hermaphrodite or rarely polygamous, zygomorphic or actinomorphic, often subtended by bracts; bracteoles wanting. Sepals 4, free or connate at the base, often unequal. Petals usually 4, sometimes wanting. Disk a ring or scale-like. Stamens 4—numerous, often on an androphore. Ovary superior, sessile or usually on a long gynophore, 1- or morelocular; style short or filiform; stigma capitate or 2-lobed. Ovules few to many on parietal placentas, campylotropous. Fruit a berry or a... |
Tipo: Article / Letter to the editor |
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Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/503235 |
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Stoffers, A.L.. |
Herbs, shrubs or rarely trees; stems terete, angled or striate, often articulate. Leaves alternate or opposite, sessile or petiolate, simple and sometimes reduced to scales. Stipules present or wanting. Flowers actinomorphic, hermaphrodite or unisexual, minute, greenish, often mono- or bi-bracteate, solitary or usually in dense cymose glomerules, these spicate, axillary, paniculate or cymose, or flowers arranged in a strobile and sunken in depression of the stems. Perianth simple, sometimes wanting in the pistillate flowers, made up of (2—)5 connate tepals, usually persisting in fruit. Stamens as many as or fewer than the tepals and epitepalous, hypogynous or adnate to a disk or to the base of the perianth; filaments free; anthers 4-celled, incurved in the... |
Tipo: Article / Letter to the editor |
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Ano: 1980 |
URL: http://www.repository.naturalis.nl/record/503221 |
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Stoffers, A.L.. |
Small trees or shrubs; top of branches and branchlets usually converted into spines. Leaves entire, opposite or fascicled on short-shoots. Stipules wanting. Flowers solitary or clustered, showy, hermaphrodite, actinomorphic, sessile or subsessile. Bracts small. Receptacle tubular, prolonged above the ovary, with a disk-like ring inside. Sepals 5—7, free, persistent, triangular or ovate-lanceolate, fleshy. Petals 5—7, alternating with the sepals, obovate, imbricate, deciduous. Stamens numerous, free, inserted in the upper part of the receptacle, above the disk-like ring; filaments filiform; anthers versatile, 2-celled, with longitudinal dehiscence. Ovary inferior, many-locular, the loculi in 2—3 superposed rows; styles united; stigma slightly lobed. Ovules... |
Tipo: Article / Letter to the editor |
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Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/503254 |
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Stoffers, A.L.. |
Herbs or undershrubs, somewhat succulent or woody near the base, often provided with tubers. Leaves alternate, usually unequal-sided, entire, lobed or digitately parted. Stipules caducous or deciduous. Inflorescence consisting of unisexual or bisexual, axillary cymes. Male flowers: sepals 2; petals 2—6 or wanting; stamens numerous to 4. Female flowers: tepals 5—2 or rarely 6—9; ovary inferior or nearly so, usually winged and 3-celled, sometimes incompletely 2—6-celled; styles as many as the cells, free or united at the base, generally 2-cleft; ovules anatropous, numerous, on axillary placentas; fruit a capsule or berry; seeds numerous, minute, straight; endosperm wanting. About 820 species in 5 genera, in tropical regions except Australia. |
Tipo: Article / Letter to the editor |
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Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/503213 |
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Stoffers, A.L.. |
Herbs or shrubs, usually tomentose or silky pubescent. Leaves alternate, simple and entire or rarely 3-foliolate. Stipules deciduous. Inflorescence consisting of terminal racemes or flowers solitary in the leaf-axils. Bracts 2, opposite, foliaceous, adnate at or above the middle of the pedicels. Flowers irregular, rather large. Sepals 4 or 5, unequal, imbricate. Petals 5, the 3 upper ones long-clawed, free or partly united, the 2 lower ones shorter or even reduced to small, thick, fleshy scales. Stamens 3—4; filaments free or united; anthers basifixed, opening with terminal pores. Ovary sessile, uni-locular; style cylindric, acute. Ovules 2, collateral, pendulous, anatropous. Fruit globose or slightly compressed, indehiscent, spiny, 1-seeded. Endosperm... |
Tipo: Article / Letter to the editor |
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Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/503250 |
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Stoffers, A.L.. |
Trees, shrubs or lianas, rarely herbs. Leaves alternate, pinnate, bipinnate or rarely simple. Petioles and petiolules with pulvini and often with glands. Stipules present; stipellae usually absent. Flowers hermaphrodite, zygomorphic or rarely actinomorphic, 5-merous, arranged in various inflorescences or sometimes solitary. Sepals free or connate, imbricate or valvate, or sometimes the calyx entire in the bud. Petals 5, imbricate, sometimes partly or completely reduced. Receptacle often somewhat cup-shaped. Disc sometimes present. Stamens 10, rarely more, but often partly staminodial or wanting; filaments free or more or less united; anthers dorsifixed and then with longitudinal dehiscence or basifixed and then mostly opening with pores or transversal... |
Tipo: Article / Letter to the editor |
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Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/503251 |
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Stoffers, A.L.. |
Trees or shrubs. Leaves alternate, deciduous or persistent, simple, entire. Stipules wanting. Inflorescence terminal, axillary or opposite the leaves. Flowers hermaphrodite or rarely unisexual, actinomorphic, generally 3-merous. Sepals 3, free or united at the base, valvate or imbricate. Petals generally 6, in 2 series, valvate or imbricate, free or rarely united at the base, the inner ones often smaller, sometimes rudimentary or even wanting. Stamens usually numerous, spirally arranged, distinct but usually tightly packed; filaments short, thickened; anthers 4-celled, extrorse, sometimes locellate; connective broad and usually expanded in a more or less hoodlike disc above the anther. Gynoecium of few or numerous, separate or, in our species, cohering... |
Tipo: Article / Letter to the editor |
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Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/503194 |
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Stoffers, A.L.. |
Shrubs or herbs (in our region) with muculaginous ducts and with an indumentum of stellate or rarely simple hairs or lepidote. Leaves alternate, simple. Stipules present or wanting, often fugaceous. Inflorescence axillary, terminal or oppositifolious, cymose or flowers solitary. Bracts and bracteoles present, small or large. Flowers hermaphrodite or unisexual by abortion, actinomorphic. Sepals 4—5, free or basally connate, caducous or persistent. Petals as many as the sepals or wanting, usually free, sometimes sepaloid, often glandular at the base. Stamens 10 to many, sometimes partly staminodial; filaments free or shortly connate at the base into a tube or in fascicles; anthers usually 2-celled, opening by longitudinal dehiscence or apical pores. Ovary... |
Tipo: Article / Letter to the editor |
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Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/503265 |
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Stoffers, A.L.. |
Mostly monoecious trees or shrubs, often of “weeping” habit, with numerous slender, jointed, angular, and striate branches. Leaves reduced to minute scales or toothed sheaths. Flowers small, unisexual, with or without perianth. Male flowers in spike-like inflorescences, born in whorls within successive sheaths towards the branch-tips; each flower with one stamen, 2 perianth leaves and 2 bracteoles (often interpreted as 4 bracteoles). Female flowers in lateral, dense, spherical heads; each flower in the axil of a bract, without a perianth, but protected by 2 bracteoles; ovary superior, uni-locular; style short, with 2 long stigmas which hang out beyond the bracts; ovules 2, collateral on a single, parietal placenta. After fertilization the female... |
Tipo: Article / Letter to the editor |
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Ano: 1980 |
URL: http://www.repository.naturalis.nl/record/503217 |
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Stoffers, A.L.. |
Stemsucculents, branched or unbranched, columnar, globose or with thick flattened stems or internodes, usually with very small scale-like and awl-shaped, rarely foliaceous leaves; stems and internodes often with warts or ribs, bearing areoles in the axils of the often absent leaves. Areoles mostly covered with felty hairs and spines. Flowers borne on the areoles, mostly solitary, usually actinomorphous, hermaphrodite; the short or long receptacle with areoles and sepal-like bracts which gradually pass into the perianth; perianth indistinctly differentiated into sepals and petals. Stamens numerous, spirally or in groups inserted on the inner face of the hypanthium; filaments free or sometimes adnate to the base of the petals; anthers 2-celled, with... |
Tipo: Article / Letter to the editor |
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Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/503259 |
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Stoffers, A.L.. |
Herbs, shrubs or trees. Leaves simple, opposite or verticellate. Stipules small and deciduous or wanting. Flowers hermaphrodite, usually actinomorphic or rarely zygomorphic, sometimes cleistogamic, usually solitary or cymose, rarely paniculate. Receptacle campanulate or tubular. Sepals mostly 4—6, valvate, alternating with smaller lobes or teeth. Petals free, as many as the sepals or sometimes wanting. Stamens very variable in number, inserted at various heights in the receptacle in one or more series, equal or some smaller or imperfect, somewhat lower inserted in the receptacle than the petals; filaments filiform; anthers 2-celled, basifixed or dorsifixed, introrse. Ovary superior, sometimes stipitate, mostly 2—6-locular with axile placentation; style... |
Tipo: Article / Letter to the editor |
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Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/503253 |
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Stoffers, A.L.. |
Treelets or shrubs, erect or climbing by hooks or tendrils or the stems twining, rarely herbs or subshrubs. Leaves simple, alternate or opposite. Stipules usually present, small and deciduous or modified into spines and then persistent. Inflorescence mostly consisting of axillary corymbs or cymes, rarely terminal racemes or panicles. Flowers actinomorphic, hermaphrodite or polygamous. Receptacle usually present. Calyx 4—5-lobed, valvate. Petals 4—5 or rarely wanting, small, often cucullate and unguiculate. Stamens epipetalous and often enclosed by the petals; anthers 2-celled, with longitudinal dehiscence. Disk perigynous, fleshy, fitting or loining the receptacle. Ovary sessile, free or immersed in the disk, superior or more or less adherent to the... |
Tipo: Article / Letter to the editor |
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Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/503281 |
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Stoffers, A.L.. |
Trees or erect or climbing shrubs, mostly glabrous. Leaves alternate, simple and mostly entire. Stipules wanting. Flowers small, actinomorphic, usually hermaphrodite, arranged in various inflorescences. Calyx minute, rarely obsolete, often accrescent, 4—6, usually 5-lobed, imbricate or open in bud. Petals (4—) 5 (—6), free or united, valvate. Stamens 4—12 in one row and then epipetalous or in 2 or 3 rows; filaments free or rarely connate, often united with the petals, some occasionally without anthers; anthers 2-celled, opening longitudinally or by pore-like slits. Disk present and then often annular or wanting. Ovary superior, sometimes inferior, completely or only at the base 2—5-locular; style 1; stigma simple or 2—5-lobed. Ovules on a central, filiform... |
Tipo: Article / Letter to the editor |
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Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/503232 |
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Stoffers, A.L.. |
Twining, woody vines, or climbing, rarely erect, shrubs, dioecious. Leaves alternate, entire; petiole swollen below the blade. Stipules wanting. Inflorescence consisting of axillary panicles or racemes. Flowers small, unisexual. Sepals 4—6 or more, free, imbricate in the bud. Petals 4—6 or reduced to 1, or wanting, free or connate. Sepals, petals and stamens usually each in 2 rows. Male flowers: stamens 6 and then epipetalous, or less; filaments free or united; anthers 4-celled or falsely so, longitudinally dehiscent. Female flowers: gynaecium of (1-)3—6 distinct, sessile or stipitate pistils, ovary superior, 1-celled, 1-carpelled; styles very short or wanting; stigma terminal, capitate or discoid, entire or lobed; staminodes 6 or wanting; ovules 2, one... |
Tipo: Article / Letter to the editor |
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Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/503197 |
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Registros recuperados: 87 | |
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