Primulaceae
Systellantha

Systellantha serratifolia Drinkell & Utteridge

First published in Kew Bull. 70(4)-50: 5 (2015)
This species is accepted
The native range of this species is Borneo (Sabah). It grows primarily in the wet tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Drinkell, C. & Utteridge, T.M.A. 2015. A revision of the genus Systellantha B. C. Stone. Studies in Malaysian Myrsinaceae IV. Kew Bulletin 70: 50. DOI https://doi.org/10.1007/s12225-015-9603-8

Morphology General Indumentum
Indumentum of minute, ferruginous multi-cellular hairs with a sub-globose glandular apex, and sessile glands
Morphology Branches
Branches slender, fawn, internodes ridged on each side, glabrous (rarely with multi-cellular hairs)
Morphology Leaves
Leaves: blade elliptic (rarely narrowly lanceolate), 9 – 28 cm long, 1.4 – 9 cm wide, chartaceous, apex attenuate or acuminate, base acute, tending to wither on drying, margins denticulate along c. mid ⅔ of the lamina; secondary veins about 20 – 50 pairs; lamina ab- and adaxially sparsely sessile-glandular; petiole 5 – 25 mm long, glabrous (rarely with multi-cellular hairs)
Morphology Reproductive morphology Inflorescences
Inflorescences small, axillary; basal bracts 1 mm long, densely covered with multi-cellular hairs and sessile glands; pedicels 1 – 4 mm long (up to 15 mm in fruiting material), glabrous
Morphology Reproductive morphology Flowers
Staminate flowers: calyx lobes rounded, triangular, c. 1 mm long, apex acute, margins hyaline, hairy with multi-cellular hairs only, abaxially sessile-glandular; petals ovate, apex acute, c. 3.7 mm long, 1.5 mm wide, pink (fideChew et al-2938), ab- and adaxially sparsely elliptic to linear sessile-glandular, (multi-cellular hairs adaxially only from the base to the middle of the petal) Pistillate flower n.v.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens c. 2.5 mm long, c. 1 mm wide, filaments c. 0.5 mm long, anthers lanceolate, connective apiculate, drying ferruginous
Morphology Reproductive morphology Fruits
Fruit globose, apex very short acuminate, 6 – 8 mm diam., fruit colour white tinged pink (fideClemenss.n.), pink to mauve-purple (fide Chew et al-2938), mature fruit reddish (fide Beaman et al-7279) densely elliptic to linear sessile-glandular, 1-seeded, globose, apex very short acuminate, 3.5 mm diam. Fig. 1.
Type
Type: Malaysia, Sabah [6°0'0""N 116°35'0""E], 1220 m, 10 Sept. 1961, Chew et al. 2938 (holotype K!).
Morphology General Habit
Shrub or small tree to c. 1.5 m
[KBu]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Kew Bulletin

    • Kew Bulletin
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • World Checklist of Vascular plants (WCVP)

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0