Diosma haelkraalensis I.Williams

Species

Angiosperms > Sapindales > Rutaceae > Diosma

Characteristics

Shrubs 0.10-0.30 m tall, decumbent, 1 m diam., forming dense mats. Branches tough, prostrate, bent at all angles; bark rough. Branchlets short, sub-erect, glabrous or minutely puberulous, pale, shining without any gland dots, well-clothed with leaves, but not hidden. Leaves 3.8-4.2 mm long, 1.8-2.2 mm broad, ovate-lanceolate, obtuse or sub-acute with a small blunt mucro, glabrous, gland-dotted towards midrib and margins, sessile, opposite, ternate, spreading or reflexed and somewhat recurved; margins narrowly translucent, serrulate-denticulate to setulose towards the base. Inflorescence terminal, solitary or twin, 5-5.5 mm diam., white; calyx glabrous, shining. Bract 1.5 mm long, 1 mm broad, ovate-lanceolate with a blunt point, glabrous, spreading; margins below ciliolate and broadly translucent. Bracteoles two, 1.2 mm long, 1 mm broad, ovate, obtuse, glabrous; margins minutely ciliolate, narrowly translucent. Calyx lobes five, 1.7 mm long, 1.2 mm broad, deltoid, glabrous; apex thickened, somewhat recurved; margins below ciliolate and broadly translucent. Petals five, 2.2-2.3 mm long, 1.5 mm broad, ovate, somewhat thickened at the tip, glabrous, white, sessile, spreading. Staminodes five, an immersed vestigial gland at the summit of the lobe of the disc very close to the base of the petal. Filaments five, acicular, glabrous, becoming 1.8 mm long after anthesis. Anthers five, before anthesis 1.3 mm long, 0.8 mm broad, dorsally somewhat pink, yellow in front; apical gland globose, semi-immersed. Disc stands open, exceeds the ovary by a long way; margin sinuate-crenulate, fleshy, dark green, exudes nectar. Stigma 0.25 mm diam., globose, capitellate. Style deflexed at first, becoming 1.5 mm long, glabrous. Ovary 5-carpellate, 0.6 mm long, 0.7 mm diam., glabrous with the apices roughened with a dense layer of minute conical points (spiculate). Fruit (from Williams 2503 ) 5-carpellate, 7-8 mm long overall, 5.5 mm diam., glabrous; horns about 3 mm long, sparsely and minutely setulose above; apices obtuse sub-emarginate with an immersed gland. Seed 3.5-4 mm long overall, 1.6-2 mm broad, black, shining.
More
Like D. guthriei but plants decumbent, leaves opposite, recurving, and flowers small.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.3
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 3-7
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

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

Diosma haelkraalensis world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:772467-1
WFO ID wfo-0000648275
COL ID 6D8WL
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Diosma haelkraalensis