Stipules pale greenish, triangular-ovate, up to ca. Rhizome succulent, 3.5–9 cm long, 0.3–0.4 cm across, internodes 0.2–0.6 cm, greenish to reddish brown, subglabrous. Plant monoecious, epipetric, creeping, perennial. peridoticola: Peng 22343) are deposited at HAST. Voucher specimens ( Begonia moneta: Peng 22344 B. After coating, the samples were transferred to the SEM chamber and observed at −160☌ with a cryo scanning electron microscope (FEI Quanta 200 SEM/Quorum Cryo System PP2000TR FEI). After etching, the temperature droped to −130☌ for sample fracturing and coating. The samples were frozen with liquid nitrogen slush, then transferred to a sample preparation chamber at −160☌ and etched for 15 min at −85☌. peridoticola were dissected and attached to a stub. Cryo scanning electron microscopyįresh leaves of Begonia moneta and B. Voucher specimen ( Peng 22343) is deposited in HAST. Classification of the chromosome complements based on centromere position at mitotic metaphase follows Levan et al. The methods of pretreatment, fixation and staining for chromosome observations followed Peng et al. Somatic chromosomes of Begonia moneta were examined using root tips from plants of the type collection. The two species belong to different sections, and no sign of natural hybridization was apparent locally. peridoticola, that co-occur on a peridotic (ultramafic) cliff in the Kinabalu National Park at ca. , ), we report the discovery of two new species of Begonia, B.

In continuation of our recent taxonomic studies on Asian Begonia (e.g. Several new species of Begonia were documented from Sabah in recent years (Reza & Kiew Beaman et al.

Every year many visit the higher part of the Kinabalu National Park, while most lowland forests in the Park are under-explored. Mount Kinabalu, reknowned for its high biodiversity and endemism, is a National Park in the State of Sabah on the northern end of the island of Borneo (Somaweer ). Detailed descriptions, line drawings, color plates, chromsome data, foliar SEM observations and comparisons with phenetically similar species are provided to aid in identification. ConclusionĪ careful study of the herbarium materials and literature supports the recognition of the two new species. distantly dentate), much larger capsular wings (8–11 mm vs. Julia from limestone areas in Kuching Division, Sarawak, differing in the entire leaf margin (vs. payung in the smaller leaves and conspicuously winged (vs. 5) tepals in pistillate flowers and markedly unequal (vs. Begonia moneta is distinct from the two species in having branched (vs. Also, their chromosome numbers are different ( B. basifixed) leaves and the smaller flower parts. gueritziana Gibbs, a widespread species of the same section in Borneo, differing in the peltate (vs. Two unknown species of Begonia were collected from a peridotic (ultramafic) cliff in the Kinabalu National Park at ca.

Mount Kinabalu, reknowned for its high biodiversity and endemism, is a National Park in the State of Sabah on the northern end of the island of Borneo.

Begonia sarawak