Rourea Aubl.

Rourea (en)

Genus

Angiosperms > Oxalidales > Connaraceae

Characteristics

Lianas or erect shrubs, sometimes small trees; part of the twigs often hooked. Leaves imparipinnate, rarely unifoliolate. Inflorescences axillary, often together pseudo-terminal (to truly terminal?), paniculate. Bracts ovate-lanceolate, acute. Bracteoles lanceolate, small, fimbriate. Flowers bisexual, 5-merous. Sepals distinctly imbricate, ovate, acute, outside usually minutely pubescent, ciliate along the margin, barbulate at the apex, inside glabrous. Petals lanceolate, 2-3 times as long as the sepals, thin, glabrous. Stamens 10, confluent at the base, glabrous, epise-palous ones distinctly longer than epipetalous ones; filaments filiform. Pistils 5, heterotristylous; ovary oblique-ovoid, pubescent or glabrous; style slender, stigma capitate, faintly 2-lobed. Calyx in fruit accrescent, coriaceous or hard. Fruits 1 (very seldom 2) per flower, ellipsoid to ovoid, usually slightly recurved, delicately striate lengthwise, glabrous (in Mal. spp.), usually opening lengthwise by a ventral slit, rarely pericarp tearing loose irregularly ± circumsciss at the base; pericarp thin, coriaceous to very hard. Seed 1, ellipsoid to subglobular, usually flattened, either the testa itself partly or nearly entirely fleshy, or the seed enveloped by a fleshy arillode; no endosperm.
More
Lianas scandent or shrubs, sometimes trees. Leaves alternate, exstipulate, petiolate, odd-pinnate, rarely 1-foliolate; leaflets often many paired, subopposite or alternate. Inflorescences axillary or pseudoterminal, paniculate; bracts ovate-lanceolate; bracteoles lanceolate, margin fimbriate. Flowers bisexual, small. Sepals 5, imbricate, hairy or glabrous, persistent and enlarged after anthesis, closely clasping base of follicle. Petals 5, longer than sepals, glabrous. Stamens ca. 10, alternately longer and shorter, those opposite sepals longer than those opposite petals; filaments connate at base, glabrous. Carpels 5, free, only 1 maturing, hairy or glabrous; ovules 2, erect, collateral. Style slender; stigma capitate, inconspicuously 2-lobed. Follicle 1, sessile, glabrous, smooth or longitudinally delicately thinly striate, dehiscing usually along adaxial suture, rarely at base, often surrounded by campanulate persistent calyx. Seed 1, flattened; testa glossy, glabrous, with a cupular, fleshy aril adnate at base; endosperm absent.
Woody, lianas, sometimes nearly erect shrubs or trees. Leaves imparipinnate, rarely unif-oliolate, when pinnate the lateral leaflets usually approximate or alternate rather than strictly opposite. Inflorescence terminal, pseudoterminal, or lateral, paniculate, usually more slender and with fewer flowers than in the two other genera. Flowers small, usually distinctly pedicellate; sepals imbricate, conspicu-ously enlarged in fruit, sometimes glandular; carpels 5. Follicles almost always solitary, sessile, glabrous or essentially so, containing a single arillate seed.
Calyx appressed in fruit. Seed entirely enveloped by an arillode which is attached near the base opposite the hilum; hilum lateral near the base, small.
Calyx spreading in fruit. Seed entirely or for the greater part covered by a sarcotesta; hilum basal, large.
Fruit dehiscing irregularly around the base.
Fruit dehiscing by a ventral slit.
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Growth form shrub
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Foliage retention evergreen
Sexuality hermaphrodite
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Environment

Primary and secondary rain-forests, especially along the edges, along river-banks, roads, etc.; mainly at low altitudes.According to J. H. Hemsley (in Fl. of E. Trop. Afr.) the fruits are eaten by birds and monkeys, which apparently are very fond of them.
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Hardiness (USDA) 9-12

Usage

Uses. A decoction of the roots of some species is used as a medicine against stomach-ache and dysentery; of some other species, this decoction is poisonous, and is used for killing dogs. The arillode is eaten. See Burk. Dict. 1935 1950 .
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Cultivation

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Images

Rourea unspecified picture

Distribution

Rourea world distribution map, present in Australia, China, Ghana, Indonesia, Madagascar, Malaysia, Panama, Samoa, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:11754-1
WFO ID wfo-4000033545
COL ID 643XS
BDTFX ID -
INPN ID 672757
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Kalawael Malbrancia Pterota Roureopsis Rourea Paxia Bernardinia Eichleria Byrsocarpus Jaundea Santaloides Spiropetalum Taeniochlaena Santalodes

Lower taxons

Rourea amazonica Rourea cuspidata Rourea chrysomalla Rourea coccinea Rourea grosourdyana Rourea glabra Rourea krukovii Rourea solanderi Rourea laurifolia Rourea parviflora Rourea pseudospadicea Rourea calophylla Rourea stenopetala Rourea surinamensis Rourea tenuis Rourea thomsonii Rourea thonneri Rourea sprucei Rourea frutescens Rourea revoluta Rourea minor Rourea pinnata Rourea obliquifoliolata Rourea balansaeana Rourea bahiensis Rourea erythrocalyx Rourea vulcanicola Rourea duckei Rourea macrocalyx Rourea carvalhoi Rourea pseudogardneriana Rourea luizalbertoi Rourea aspleniifolia Rourea confundens Rourea acutipetala Rourea fulgens Rourea harmandiana Rourea radlkoferiana Rourea fluminensis Rourea breviracemosa Rourea brachyandra Rourea induta Rourea ligulata Rourea martiana Rourea paraensis Rourea pittieri Rourea puberula Rourea schippii Rourea orientalis Rourea camptoneura Rourea adenophora Rourea suerrensis Rourea accrescens Rourea omissa Rourea microphylla Rourea caudata Rourea rugosa Rourea latifoliolata Rourea kappleri Rourea psammophila Rourea antioquensis Rourea cnestidifolia Rourea discolor Rourea doniana Rourea gardneriana Rourea emarginata Rourea glazioui Rourea araguaensis Rourea balansana Rourea calophylloides Rourea gracilis Rourea mimosoides Rourea myriantha Rourea neglecta Rourea prainiana Rourea ovalis Rourea pubescens Rourea foreroi Rourea prancei Rourea oligophlebia Rourea blanchetiana Rourea cassioides