Oldfieldia Benth. & Hook.F.

Genus

Angiosperms > Malpighiales > Picrodendraceae

Characteristics

Dioecious trees or shrubs with simple indumentum. Twigs cicatricose. Buds perulate. Leaves alternate, opposite-decussate or verticillate, petiolate, exstipulate, digitate; leaflets subsessile or petiolulate, entire, penninerved. Inflorescences axillary, solitary or geminate, cymose. Male inflorescences subsessile or pedunculate, many-flowered, lax or capituliform. Female inflorescences pedunculate, the peduncle lengthening in fruit, (1–)2(–3)-flowered. Male flowers small, shortly pedicellate; sepals 5–8, unequal, fused at the base, imbricate; petals 0; stamens 4–12, free, inserted between the lobes of the disc, filaments unequal, anthers dorsifixed, extrorse, minutely papillose, longitudinally widely dehiscent; disc central, thick, fleshy, lobate-sinuate, pubescent; pistillode filiform, minute or 0. Female flowers: pedicels lengthening in fruit; sepals and petals as in the ♂ flowers; disc hypogynous, annular, fleshy, short, crenellate; ovary 2–3-locular, with 2 ovules per locule; styles 2–3, connate at the base, stigmas ± reniform, 2–4-lobulate, caducous. Fruit tardily loculicidally dehiscent; valves 2–3, each with a septum attached; pericarp slightly coriaceous; endocarp crustaceous. Seeds 1–2 per locule, somewhat compressed, with a thickened carunculoid funicle; testa crustaceous; albumen fleshy; embryo green; cotyledons broad, flat.
More
Male flowers small, shortly pedicellate; sepals 5–8, unequal, united at the base, imbricate; petals absent; stamens 4–12, free, filaments inserted between the lobes of the disk, unequal, anthers dorsifixed, extrorse, minutely papillose, longitudinally widely dehiscent; disk central, thick, fleshy, lobate-sinuate, pubescent; pistillode filiform, minute or absent.
Female flowers: pedicels very short, lengthening slightly in fruit; sepals longer, narrower and stouter than in the male, but otherwise similar, persistent in fruit; disk hypogynous, annular, short, fleshy, crenellate; ovary 2–3-locular, with 2 ovules per locule; styles 2–3, short, connate at the base; stigmas ± reniform, shallowly 2–4-lobulate, caducous.
Fruits 2–3-locular, depressedobovoid-subglobose, tardily loculicidally dehiscent into 2–3 valves each with an attached septum; pericarp coriaceous; mesocarp crustaceous; endocarp chartaceous; columella persistent, often with the seeds attached.
Inflorescences axillary, solitary or geminate, cymose; male inflorescences subsessile or pedunculate, many-flowered, lax or capitate; female inflorescences pedunculate, the peduncles extending in fruit, 1–3-flowered.
Leaves alternate, opposite-decussate or verticillate in whorls of 3, long-petiolate, exstipulate, digitately 3–8-foliolate; leaflets subsessile or petiolulate, entire, penninerved, brochidodromous.
Seeds 1–2 per locule, usually 3 per fruit, somewhat compressed; exotesta fleshy; endotesta crustaceous; funicle thickened, carunculoid; albumen fleshy; embryo green, cotyledons broad, flat.
Dioecious pachycaul trees or shrubs with a simple indumentum.
Buds perulate (furnished with protective scales).
Twigs with prominent leaf scars.
Life form perennial
Growth form
Growth support -
Foliage retention evergreen
Sexuality dioecy
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

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

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 -

Distribution

Oldfieldia world distribution map, present in Angola, Benin, Central African Republic, Congo, Gabon, Kenya, Liberia, Mozambique, Sierra Leone, Somalia, Tanzania, United Republic of, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:15725-1
WFO ID wfo-4000026702
COL ID 8VZV3
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Paivaeusa Oldfieldia

Lower taxons

Oldfieldia dactylophylla Oldfieldia somalensis Oldfieldia macrocarpa Oldfieldia africana