Stixis Lour.

Genus

Angiosperms > Brassicales > Resedaceae

Characteristics

Woody vines [or clambering shrubs]. Twigs often with lenticels. Stipular spines absent. Leaves alternate, simple; petiole sometimes geniculate, apically often thickened; leaf blade leathery, sometimes with pellucid spots, glabrous or sometimes with trichomes, midvein adaxially with small pustules, margin entire. Inflorescences axillary racemes [or terminal panicles], many flowered; bracts subulate, often caducous. Flowers small. Pedicel short. Sepals (5 or)6, basally connate into a short tube, lobes erect, spreading, or reflexed. Petals absent. Androgynophore terete, short; stamens (15-)20-50(-100); filaments distinct, unequal with outermost shortest; anthers dorsifixed. Gynophore ± as long as filaments; ovary nearly globose or ovoid, glabrous or with trichomes, apically often with vertical grooves, 3(or 4)-loculed, placentation axile; placentae each with 4-10 ovules; style solitary, linear, entire or divided into 3(or 4) subulate stigmas, sometimes unlobed. Fruit drupaceous, ellipsoid, small, surface with lenticels, apex often with persistent style; fruiting pedicel and gynophore ± equal, forming a woody stipe much shorter than fruit. Seeds 1(-3) per fruit, ellipsoid, erect, covered by sarcocarp; seed coat thin; cotyledons fleshy, unequal, larger surrounding smaller.
More
Rather small, unarmed, woody climbers, rarely shrubs. Branches lenticellate. Leaves simple, acuminate, rather large, often with minute, whitish pustules along the midrib, finely pellucid-dotted; petiole incrassate at the apex. Racemes or panicles ∞-flowered, axillary or terminal, with caducous bracts. Pedicels short. Sepals mostly 6, in two whorls of 3, valvate, at the top of the bud the outer sepals covering the margins of the inner ones, more or less strap-shaped, densely fulvous-tomentose on both sides, inserted on the margin of a widened, dish-shaped, persistent torus. Corolla absent. Stamens on a short, ± cylindrical androgynophore, 20-50(-c. 100), unequal, the outer ones shortest, about as long as the sepals. Gynophore about equalling the filaments. Ovary subglobular, 3-celled, with 3 axillary placentas each bearing 5-8(-10) ovules; style simple or split into three arms. Fruits few, on a thick woody stalk, ellipsoid, 2.5-5 cm long, sometimes with small persistent style, finally more or less lenticellate. Seed 1, large, embedded in pulp, with a thin testa; cotyledons unequal, one enclosing the other.
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Growth form shrub
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Foliage retention deciduous
Sexuality hermaphrodite
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Hardiness (USDA) 8-12

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Cultivation

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Distribution

Stixis world distribution map, present in Bangladesh, China, India, and Malaysia

Identifiers

LSID urn:lsid:ipni.org:names:6030-1
WFO ID wfo-4000036750
COL ID 7NSK
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Alytostylis Covilhamia Stixis

Lower taxons

Stixis scortechinii Stixis nayarii Stixis hookeri Stixis obtusifolia Stixis suaveolens Stixis philippinensis Stixis ovata Stixis scandens