Diosma tenella I.Williams

Species

Angiosperms > Sapindales > Rutaceae > Diosma

Characteristics

Shrubs 0.3-0.4 m tall, fairly erect, spreading 0.5 m or more, diffuse, in this locality single-stemmed at base. Branches spreading, variously bent, glabrous; bark smooth, ashy-brown. Branchlets short, fairly erect, slender, thinly puberulous, reddened, not hidden by the leaves. Leaves 5.1-7.1 mm long overall, 0.8-0.9 mm broad, linear-oblong, obtuse, glabrous, eciliate, short-petiolate, alternate, spreading or somewhat erect; apex minutely whitish-mucronate; abaxial surface convex, lumpy with gland dots to either side of the midrib. Inflorescence solitary, terminal in very much reduced racemes; buds pink; flowers 5 mm diam., calyx puberulous. Bract varies in size, 1.5-2.4 mm long, 0.6-0.7 mm broad, lanceolate, sub-obtuse, glabrous, gland-dotted; margins very sparsely ciliolate, not translucent. Bracteoles two, 0.7 mm long, 0.6 mm broad, orbicular, quite thick; adaxial surface minutely pubescent; abaxial surface glabrous, gland-dotted; margins minutely ciliolate, very narrowly translucent. Calyx lobes five, 1 mm broad, 1 mm long, sub-orbicular; adaxial surface concave, minutely pubescent; abaxial surface glabrous, gland-dotted; margins minutely ciliolate, narrowly translucent. Petals five, 2.2 mm long, 1.5-1.6 mm broad, ovate, obtuse, sessile, white, glabrous, abaxially gland-dotted, flushed with pink. Staminodes five, 0.1 mm diam., a spherical gland at the base of the petal on the outside of the disc. Filaments five, becoming 1.7 mm long, glabrous, acicular. Anthers five, before anthesis 1 mm long, 0.7 mm broad, yellow; apical gland globose semi-immersed. Pollen 46 µ long, 22 µ broad, ellipsoid. Disc sinuate-crenulate, green, stands open, exceeds the ovary. Stigma 0.15 mm diam., capitellate, green. Style deflexed at first becoming 1.3-1.8 mm long, glabrous, persisting for some time. Ovary 5-carpellate, 0.5 mm long, 0.7 mm diam., glabrous green, apices globose. Fruit 5-carpellate, 5 mm long, 7 mm diam., glabrous, multi-gland-dotted, reddened in the grooves between the carpels and below; horns 1 mm long, very short, obtuse; apex with a deeply immersed gland. Seed 3-3.5 mm long, 1.8-2 mm broad, black, minutely wrinkled, not shining except when magnified; aril dirty brown.
More
Finely leafy, aromatic shrublet to 50 cm, single-or multistemmed. Leaves linear-oblong, spreading to suberect. Flowers few in short, terminal racemes, white.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.4
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 3-4
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 tenella world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:899730-1
WFO ID wfo-0000648416
COL ID 36DNP
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Diosma tenella