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Nabalu corneri (A.Hay) S.Y.Wong & P.C.Boyce

Introduction & Overview

Common and Scientific Names

  • Scientific Name: Schismatoglottis corneri A.Hay
  • Common Name: No widely used common name is recorded

Quick Facts

  • Origin: Borneo (including the Anambas Islands)
  • Features: Distinctive for its arborescent habit and sagittate leaves up to 80×50 cm

Taxonomy & Classification

  • Genus: Nabalu (monotypic, established 2018)
  • Botanical Background: Described as Schismatoglottis corneri by A. Hay (2000), it was reassigned to its own genus by Wong & Boyce in Webbia (2018).

Natural Habitat & Distribution

  • Geographical Range: Endemic to wet tropical forests of western Sabah, Borneo, at 550–1 000 m elevation.
  • Environment: Thrives in disturbed forest gaps and rocky riverbanks under consistently high humidity. 

Morphological Characteristics

Leaves

  • Large, sagittate, mid‑green blades with prominent veins

Inflorescence (Spadix & Spathe)

  • Nodding
  • Lower spathe green, upper limb white and lanceolate
  • Spadix creamy with a tapering appendix

Growth Habit

  • Terrestrial, massive pachycaul geophyte reaching ~2.3 m tall via a stout rhizome

Cultivation & Care

Light Requirements

  • Bright, indirect

Watering & Humidity

  • Even moisture; >60% humidity

Soil & Potting Mix

  • Rich, well‑draining mix (peat + perlite)

Temperature & Fertilizer

  • 18–30 °C
  • Balance feed monthly in growing season

Propagation Methods

Division

  • Rhizome sections with a growing bud


Seeds

  • Rare
  • Require fresh sowing under high humidity

Common Pests & Diseases

Typical Issues

  • Spider mites, mealybugs, root rot

Treatment Recommendations

  • Neem oil or insecticidal soap
  • Ensure proper drainage

Notable Traits & Uses

  • Monotypic genus named after botanist E.J.H. Corner
  • Valued by collectors for its striking form and foliage

Conservation & Availability

Wild Population Status

  • Predicted “threatened” with high confidence

Market Availability

  • Very rare
  • Mostly in specialist collections

References & Resources

Further Reading

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