not toothed, crenate, tip rounded; venation palmate-pinnate, 3 pairs with another 3 veins in peltate base, branching toward the margin, veins plane above, red beneath.
Inflorescences axillary, glabrous, longer than the leaves, 10–16 cm long with a
peduncle 9–15 cm long, branches 1–2 cm long, protandrous. Bract brownish green c.
3 x 2 mm, bracteoles pale green, margin hairy, c. 2 x 1 mm. Male flowers with
pedicel, 5-6 mm long; tepals 4, margin entire, tip rounded, outer two orbicular, 10-13 x 9-13 mm, inner two narrowly obovate, 9-13 x 5-6 mm; stamens many, golden
yellow, stamen cluster with a pedicel c. 1 mm long; filament c. 1 mm long; anther
dull yellow, broadly obovate, 0.75–1 mm long, tip rounded, opening by slits. Female flowers with a pedicel c. 11 mm long; ovary, 3 locules, placenta 1 per locule; tepals
4, glabrous, outer two broadly obovate,11-13 x 10-11 mm, inner two narrowly obovate, 9-11 x 5-6 mm; style and stigma golden yellow 4 mm long, stigmas spiral.
Fruit with a reddish green pedicel 10-11 mm long; capsule with 3 equal wings; locules 3. Seed barrel-shaped, c. 0.35-0.4 mm collar cell a quarter to the seed length.
Distribution : Java and Bali. Habitat : Confined to karst limestone at 30-1000 m altitude, in shaded stony
situations, steep gullies Notes: This is the only peltate leaf Begonia in Bali and Lombok, it grows on
limestone. Smith et al. 1986 did not locate Hasskarl’s type; instead they cite Hooker’s Plate. This species is a new record from Lombok and Bali.
Specimen examined: BALI. Lempuyang Temple, Abang subdistric. Distr. Karang Asem,13-3-2007, Deden Girmansyah 802 BO, Lempuyang. 24-4-2006, DM
1267BO
3. Begonia lempuyangensis Girmansyah sp. nov. ― Fig.11
Begonia robusta Blume omino glabra, pedunculus breviore petiolis pedunculis triplo longioribus, fructus alis non cornuatus differt.--Typus: Lempuyang Temple, Abang
Subdistrict, Karang Asem Distr., 13-3-2007, Deden Girmansyah 805 holotype BO
Stem brownish green to red, erect, unbranched, glabrous, succulent, arising
from a basal rhizome, nodes swollen, up to 50 cm tall, 11–14 mm thick at base, nodes
red or reddish green, swollen; without a tuber, internodes short.7-12 cm. Stipules
caducous. Leaves distant, alternate; green to brownish green, glabrous, 15 - 21 cm
long; thick 6–11 mm; lamina very oblique, glabrous, thinly papery when dried, broadly ovate, asymmetric, 23.5–24 x 13-16 cm, broad side 8.5 - 14 cm wide, base
deeply cordate, unequal, basal lobes not overlapping, basal lobe rounded 5-6.5 cm long, margin shallowly to deeply scalloped; venation palmate-pinnate, 2-3 pairs at the
base and 2-3 pairs along the midrib with 2 pairs in the basal lobes, bifurcating at 13 from the base towards the margin, veins impressed above, beneath prominent,
sparsely hairs. Inflorescences axillary, hairy with glandular hairs, erect, shorter than
the leaves, peduncle 5-10 cm long, male flowers 12 and female flowers 8,
protandrous. Bracts caducous. Male flowers with reddish to reddish white pedicel 2-
2.5 cm long; tepals 4, rotund, margin entire, tip rounded, outer two reddish on the dorsal side, 14–17 x 12–14 mm, inner two smaller, white, 13–15 x 9-10 mm; stamens
many cluster globose, filament 1–2 mm long, anther yellow, narrowly obovate, tip
rounded, opening by slits, 2–3 mm long. Female flowers with reddish white pedicel,
9-1 mm long; ovary pale green with white spot, subglobose, 6-10 x 6-13 mm; wings 3, unequal, larger one with reddish on the margin, locules 3, placenta one per locule;
tepals 5, white, broadly elliptic, margin entire, tip rounded, outer three, 9–17 x 7–11 mm, reddish around the middle, inner two glabrous, white, 9-13x6–9 mm, styles 3,
styles and stigmas pale yellow and slightly greenish, style with stalk, 2 mm long, style greenish yellow, c. 3 mm long, stigma spiral, greenish yellow, c. 3 mm long.
Fruit splash cup pendent on a fine pedicel, 9-11 mm long, berry, globose, c.11 x 17
mm, glabrouse, locules 3, wings 3, unequal, usually one longer than the other two.
Seeds brown, broadly ellipsoid, 0.3-0.4 mm long, base truncate, rounded distally,
collar cell a half to the seed length.
Distribution: Pura Lempuyang, Bali Habitat: Humid shady situations, especially in umbrageous forest, on the forest floor
at 1000 – 2000 m asl. Notes: This species look like B. robusta in rhizomatous plant and leaves shape, but
different in several characters. Begonia robusta has fruit with big one wing ,
