Ochna L.

Ochna (en)

Genus

Angiosperms > Malpighiales > Ochnaceae

Characteristics

Trees, shrubs or pyrophytic shrublets, usually glabrous. Young leaves often reddish. Leaves petiolate, usually with serrate or ciliate margins, less often entire; stipules entire to deeply bifid or fimbriate, usually not striate nor persistent. Inflorescences paniculate, umbellate or racemiform, sometimes reduced to a solitary flower, terminal or terminating short axillary shoots; usually scented; inflorescence buds usually very noticeable, fusiform, ovoid or subglobose with numerous distichous imbricate bracts leaving a series of annular scars which are usually very obvious; pedicels articulated at or above the base; torus usually thickening and becoming red in fruit. Sepals (3–)5, quincuncially imbricate, becoming red and coriaceous in fruit. Petals 5(–12), absent in one species, mostly yellow, usually unguiculate. Stamens (14–)20–numerous in 2 or more whorls, free; filaments slender, longer or shorter than the anthers, persistent; anthers yellow, dehiscing by longitudinal slits or terminal pores, usually soon deciduous. Carpels (3–)5–15, free, 1-ovulate; styles slender, gynobasic, united or sometimes free at apex with somewhat enlarged stigmas. Fruit with 1–several free black drupelets with fleshy mesocarp. Seeds straight, ± curved or reniform, without endosperm; embryo straight or curved.
More
Trees or shrubs with spreading branches. Stipules small, intrapetiolarly united, caducous. Leaves shortly petiolate, serrate to ciliate, rarely entire; chartaceous or subcoriaceous; nerves curved upward, especially near the margin, not joining; veinlets at ±90° to the nerves near the midrib and joining in irregular secondary nerves, ±transverse near the margin. Inflorescence mostly lateral or terminal thyrses with a terminal flower, sometimes lateral, simple cymes; peduncle ±persistent, with small axillary buds, sometimes branching once or twice after flowering and developing new inflorescences; bracts caducous, leaving a distinct annulus of scars; pedicels filiform, articulated. Flowers with a ±hemispherical, distinctly tumid torus, becoming red in fruit. Sepals 5, greenish, greatly enlarged and becoming red in fruit. Petals 5 (rarely to 10), yellow or white. Stamens numerous in 2 or more whorls, free; filaments subterete; anthers opening with 2 apical pores. Carpels (4–)5–15, 1-ovulate; styles slender, gynobasic, basally united. Stigmas as many as ovaries, on short branches or ±united. Fruit of 1–several, free druplets; druplets with fleshy mesocarp, greenish, turning black when ripe, inserted on an enlarged, red receptacle.
Shrubs or treelets, sometimes undershrubs. Stipules small, intrapetiolarly united, caducous. Leaves shortly petioled, chartaceous or subcoriaceous; nerves curved upward, especially near the margin, not joining; veinlets ± at right angles to the nerves near the midrib and joining in irregular secondary nerves, ± transverse near the margin. Inflorescences lateral or terminal thyrses with a terminal flower; peduncle ± persistent, bearing many, small, distichously conferted, caducous bracts at base, leaving a distinct annulus of scars; pedicels filiform, articulate. Flowers with ± hemispherical torus, distinctly tumid and red in fruit. Sepals 5, greenish, accrescent and turning red in fruit. Petals 5-10, in 1-2 whorls, yellow. Stamens ∞ in 2 or more whorls; filaments subterete; anthers opening with 2 apical pores. Ovaries 5-10(-15), obovoid; ovule atropous; stigmas as many as ovaries, on short branches or ± united. Fruits 1-3(-5), greenish, turning black when ripe.
Small trees or shrubs. Stipules small, intrapetiolarly united, deciduous; leaf blade simple, margin generally serrate, rarely entire; secondary veins curved upward, especially near margin, not joining in a submarginal vein. Inflorescences branched, sometimes corymbose. Sepals (4 or)5, completely enclosing floral bud, margins entire, often accrescent and colored in fruit, persistent. Petals 5-12, yellow or rarely orange or white, contorted. Stamens numerous, 2-or more whorled; filaments short or elongate, persistent; anthers poricidal or more rarely longitudinally dehiscent. Ovary deeply lobed, 3-15-locular; ovule 1 per locule; style gynobasic, slender; stigma generally slightly lobed. Drupelets 3-10(or 15), black, inserted on accrescent receptacle. Seed non-endospermic; embryo straight or curved.
Seeds straight or ± curved or reniform, cylindric or somewhat flattened but not angular, without endosperm or an internal projection of the endocarp; embryo straight or curved, incumbent or accumbent, isocotylous or heterocotylous.
Inflorescence paniculate to racemose or umbellate or reduced to a single flower, terminal or terminating short axillary shoots; bracts scale-like, caducous; pedicels articulated at or above the base.
Leaves petiolate; lamina with margin serrate to ciliate or rarely entire; stipules entire or with ciliate or fimbriate margins or ± deeply bifid, not striate, free, deciduous or caducous.
Stamens (14) 20-?, free; anthers yellow, dehiscing by longitudinal slits or terminal pores, deciduous; filaments ± slender, longer or shorter than the anthers, persistent.
Carpels (3) 5–15, apparently free at the base, 1-ovulate; styles slender, gynobasic, united except sometimes towards the apex; stigmas terminal, enlarged.
Sepals (4) 5, quincuncial in bud, green or yellow in flower, persistent, enlarging and becoming varying shades of red and coriaceous in fruit.
Fruit 1 to several free black 1-seeded drupelets with fleshy mesocarp, inserted on the enlarged red receptacle.
Petals 5 (rarely up to 12), yellow or rarely orange or white, often unguiculate, deciduous.
Trees, shrubs or shrublets, usually completely glabrous.
Life form -
Growth form
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Confined to tropical areas below 1500 m altitude, as far northward as the foothills of the Himalayan Mountains. More or less adapted to dry seasons and dry habitats in poor soils.
More
Adapted to a seasonal climate, on poorer soils, below 1500 m. Dispersal by birds because of conspicuous black fruits on red torus and calyx ( RIDLEY Disp. 1930 419 ).
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Ochna unspecified picture

Distribution

Ochna world distribution map, present in Australia, China, India, Iceland, Madagascar, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:28076-1
WFO ID wfo-4000026477
COL ID 66FH
BDTFX ID -
INPN ID 445859
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Heteroporidium Ochnella Polyochnella Polythecium Porochna Jabotapita Diporochna Diporidium Ochna Campylochnella Discladium Monoporidium Pentochna Philomeda Pleodiporochna Pleopetalum Proboscella

Lower taxons

Ochna cinnabarina Ochna calodendron Ochna micrantha Ochna obtusata Ochna holstii Ochna hiernii Ochna lanceolata Ochna gambleoides Ochna gamblei Ochna schweinfurthiana Ochna leucophloeos Ochna kirkii Ochna jabotapita Ochna katangensis Ochna fruticulosa Ochna afzelii Ochna membranacea Ochna multiflora Ochna manikensis Ochna latisepala Ochna mauritiana Ochna leptoclada Ochna rhizomatosa Ochna pumila Ochna emarginata Ochna thouvenotii Ochna louvelii Ochna sambiranensis Ochna baronii Ochna ciliata Ochna macrantha Ochna polycarpa Ochna barbosae Ochna confusa Ochna gamostigmata Ochna atropurpurea Ochna glauca Ochna inermis Ochna natalitia Ochna pretoriensis Ochna thomasiana Ochna macrocalyx Ochna polyneura Ochna oxyphylla Ochna puberula Ochna afzelioides Ochna richardsiae Ochna bracteosa Ochna staudtii Ochna hackarsii Ochna stolzii Ochna boiviniana Ochna madagascariensis Ochna humblotiana Ochna comorensis Ochna pervilleana Ochna vaccinioides Ochna andravinensis Ochna minutiflora Ochna cyanophylla Ochna holtzii Ochna beirensis Ochna rovumensis Ochna apetala Ochna insculpta Ochna polyarthra Ochna citrina Ochna braunii Ochna schliebenii Ochna monantha Ochna pseudoprocera Ochna angustata Ochna dolicharthros Ochna barbertonensis Ochna bakeriana Ochna pygmaea Ochna arborea Ochna pulchra Ochna integerrima Ochna serrulata Ochna ovata