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Species

B. kapuashuluensis

Identity

Genus
Begonia
Name
B. kapuashuluensis
Author
Randi, Agusti; Ardi, Wisnu H.; Girmansyah, Deden; Sitepu, Bina Swasta; Hughes, Mark
Publication Date
2022
Place
Kalimantan
Habitat
Humid areas near rivers or narrow valleys under a dense canopy of mixed dipterocarp forest at 100–300 m elevation.
Country
Indonesia
Region
Asia
Section
Petermannia
Reference
Three new species, one new record and an updated checklist of Begonia (Begoniaceae) from Kalimantan, Indonesia. Phytotaxa 533(1):062-072
Article References
https://www.researchgate.net/publication/358348851_Three_new_species_one_new_record_and_an_updated_checklist_of_Begonia_Begoniaceae_from_Kalimantan_Indonesia

Plant

No populated fields in this section.

Lineage

Parents

No parentage recorded.

Descendants

No recorded descendants.

Culture

Endangered Status
Near Threatened
Original Botanical Description or Link to
A small herb, erect, up to 20 cm tall. Stem with 1–3 branches, 4–7 mm in diameter at the base, glabrous, bright red to brownish, fleshy and succulent, internodes 1–3 cm apart. Stipules caducous, asymmetric, translucent, glabrous, elliptic to lanceolate, 10–15 × 3–5 mm, with a stiff main rib and many parallel red veins; margin entire, apex acute with a short-pointed tip; pale green to red to brownish. Leaves 4–7, simple, alternate, oblique, glabrous; petiole 1–4 cm long, red to brownish, glabrous; lamina ovate, 9–14 × 4–7 cm (basal lobes included); strongly asymmetric with a well-developed basal lobe on one side giving a cordate appearance, base unequal, basal lobes 1–3 cm long, margins minutely denticulate, generally with a narrow dark red border adaxially that is clearly visible on young leaves, apex acuminate; adaxially shiny, deep bluish-green, surface flat or slightly bullate, abaxially light red to crimson, glabrous; venation palmate-pinnate, midrib distinguishable, with 3–4 lateral veins each side, other primary veins branching dichotomously; young leaf brownish abaxially. Inflorescence protogynous, terminally or axillary, erect, 6–12 cm long; basal branch with a pair (rarely 2 pairs) of pistillate flowers on short peduncle ca. 1 cm long, often with leaves at the first branch; upper distal to 10 cm long, zig-zag, branching cymosely, peduncle to 5 cm long, cymes branching to 3 orders, crimson to brownish, glabrous; bracts caducous, translucent, glabrous; bract on nodes of pistillate flower elliptic to lanceolate ca. 5 × 1 mm, cream to pinkish, margin entire, apex acute to cuspidate; bracts on higher part of inflorescence similar but smaller. Staminate flower with 2 pink tepals, each tepal ovate to orbicular or obovate, 3–5 × 3–5 mm, glabrous, margin entire, apex acute to rounded; pedicel pink to crimson, 2–5 mm long, glabrous; androecium symmetric with 22–31 yellow stamens, filament 0.6–1.2 mm long, anthers obovate 0.7–1.4 mm long, apex opened by slit. Pistillate flower 10–20 mm across, each flower blooming alternately; pedicel pink to brownish red, 4–8 mm long, ca. 1 mm in diameter, glabrous; ovary 3-locular, asymmetric, 7–11 × 10–15 mm (wings included), yellowish-green in the middle, red to brownish on the wings; tepals 5, glabrous, 2 outer and 3 inner, all pink and elliptic, 6–8 × 4–5 mm, apex acute to obtuse; styles 3, bifid, 2–4 mm long, golden yellow; stigmas narrowly Y-shaped, forming a papillose spiral band. Fruits nodding, 7–15 × 10–18 mm (wings included), pink to crimson, glabrous; wings 3, subequal, nearly parallel but with rounded, apex acute or mucronate, 3–4 mm wide at the widest point.