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Species

B. tenuifolia

Photos

5 photos

Identity

Genus
Begonia
Name
B. tenuifolia
Author
Dryander, Trans. Linn. Soc.
Publication Date
1791
Place
Java, Sumatra, Bali, Nusa Tenggara
Habitat
In shade on steep gullies, stony and sometimes on karst limestone at 50-900 m.
Country
Indonesia
Region
Asia
Chr 2n
22
Plant Type
Tuberous
Synonyms and Comments
Etymology: Latin tenuis (thin) after the delicate thin leaves; B. U430?; B. lineata N. E. Brown, Gard. Chron. II 18:199. 1882. —Backer & Van den Brink, Fl. Java 1:308. 1964. —L.B. Smith & D.C. Wasshausen, Phytologia 54:468. 1984.; B. varians A. de Candolle, Ann. Sci. nat., Bot. ser. 4. 11:135. 1859;
Reference
Trans. Linn. Soc. 1:162, pl. 14:fig. 4. 1791; JGSL9/08; D. Girmansyah, Bali and Lombok species of Begonia (begoniaceae): 2008;
Article References
Tebbitt, Begonias 5:231. 2005; Hughes M. et al., Asian Begonia 319, 2018;
Photo References
Hughes M. et al., Asian Begonia 319, 2018; The Begonian, May 1954; The Begonian, Dec 1947; Beg 90 p 222-3 Nov/Dec 2023;

Plant

Description
Deciduous; As B. lineata, (N. E. Brown. in Gard. Chron. 1882, vol. xvii. p. 199) from Hortus Veitchii: London: J. Veitch & sons, 1906. Page 231-34. A pretty species, which dies down annually, with a tuberous rootstock, and blackish-green leaves covered with silvery spots, sent home from Java by Curtis.
Stem Type
Underground with erect stems

Lineage

3 descendants

Parents

No parentage recorded.

Etymology: Latin tenuis (thin) after the delicate thin leaves; B. U430?; B. lineata N. E. Brown, Gard. Chron. II 18:199. 1882. —Backer & Van den Brink, Fl. Java 1:308. 1964. —L.B. Smith & D.C. Wasshausen, Phytologia 54:468. 1984.; B. varians A. de Candolle, Ann. Sci. nat., Bot. ser. 4. 11:135. 1859;

Descendants

3 recorded children

As male parent

0

No children recorded with this plant as the male parent.

Culture

Original Botanical Description or Link to
D. Girmansyah, Bali and Lombok species of Begonia (begoniaceae): 2008 “Stem pale green, succulent, weak, erect, 2- 25 cm tall, diameter 1-4 mm, little branched, densely or sparsely hairy, hairs short, white; tuber small, c. 5 mm. Stipules caducous. Leaves oblique, distant, 1–3 or more on each stem or branchlet; petioles translucent, pale green or whitish green, densely to sparsely hairy, 0.5-10 cm long, flat or grooved above; lamina dull plain green above and whitish or pale reddish beneath; thin and soft in life, thinly papery when dried, broadly ovate, asymmetric, 1.5–8.5 x 1.2-6 cm, broad side 0.7-3.2 cm, base unequally cordate, basal lobes not overlapping, 0.3-2.3 cm long, margin minutely toothed with sparse hairs, sometimes undulate, apex blunt or rounded; venation palmate-pinnate, 4–5 pairs of veins, with another 2 in the basal lobe, plane or slightly impressed above, beneath slightly prominent, whitish green or reddish. Inflorescences terminal, reddish white, glabrous, longer than the leaves, peduncle 5-20 cm long, branched, 1–4 cm long, protandrous. Male flowers pure white to pinkish white pedicel 10-11 mm long; tepals 4, margin entire, tip rounded, outer two rounded, 7-10 x 6-7 mm, inner two narrowly oval, 7-10 x 2.5-.3 mm; stamens many, cluster globose, stalk 2 mm long; filament 0.5–0.75 mm long; anther yellow, obovate, c. 1 mm long, tip rounded, opening by slits. Female flowers white to pinkish white, pedicel 5-12 mm long, ovary pinkish white, wings 3, unequal, locules 2, placentas 2 per locule; tepals 5, white, ovate, margin entire, tip rounded, outer one bigger , 9-12 x 3-4 mm, innermost one smaller, 6-11 x 2-3 mm; styles 2, Y-shaped, styles and stigmas yellow, style 3-4 mm long, stigma spiral, 1.5-2 mm long. Fruit pinkish white or pale green, capsule 5-6 mm wings 3, unequal, larger wing 3-7 mm wide, smaller two 2-3 mm wide. Seeds brown, ellipsoid to oblong, 0.3-3.5 mm long, collar cell a half or 3/4 the seed length.”