Species

B. dipetala var. dipetala

Photos

5 photos

Identity

Genus: Begonia
Name: B. dipetala var. dipetala
Form Variety: var. dipetala
Author: R. Graham, Bot. Mag.
Publication Date: 1828
Place: Western Ghats 1000’ - 2500’ (R. Morris 2009)
Country: India; Sri Lanka
Region: Asia
Section: Haagea
Chr 2n: 28, 30, 60?
Plant Type: Thick Stem
Synonyms and Comments: Etymology: referring to the flowers with 2 tepals; B.malabarica Lamarck var. dipetala Thwaites, Enum. Pl. Zeyl. :128. 1859. —C.B. Clarke in J.D. Hooker, Fl. Brit. Ind. 2:655. 1979. —Irmscher, Pareys Blumengart. ed. 2 :78. 1960.; malabarica A. de Candolle. 1864, non Lamarck, 1785.; tuberosa herb. Wight ex Wallich,1831; tuberosa herb. Heyne ex A. de C.,1864 non lamarck,1785; bipetala Loddiges in Steudel, Nom. Bot. ed. 2, 1:193. 1840. —Otto & Dietrich, Allg. Gartenzeitung 9:59. 1841. errore typographico pro dipetala Graham. 1828.; malabarica auct. non Lamarck: A. de Candolle, Prodr. 15(1):392. 1864. —J. Doorenbos, Begonian 67:170. 2000. Circulated incorrectly as ‘Mrs. W. S. Kimball’;u044
Reference: R. Graham, Bot. Mag. 55:pl. 2849. 1828. —Wight, Icon. Pl. Ind. Orient. 5(2):9, pl. 1813. 1852.—E.S. Santhosh Kumar, Seema G. Gopal & G.M. Nair, Begonian 72:136-40. 2005.; JGSL9/08
Article References: Tebbitt, Begonias 5:120-21. 2005; Hughes M. et al., Asian Begonia 88, 2018
Photo References: Tebbitt, Begonias pls.78 & 79. 2005; Hughes M. et al., Asian Begonia 88, 2018

Plant

Description: Variable sp. Several forms reported by R. Morris 2009; Curtis’s Botanical Magazine v. 55 = ser. 2, v. 2, 1828 B. dipetala Description: Stem erect, tapering, greyish brown, with a few small, round, vermillion pots, scarcely branched in our specimens, which are small. Leaves half heart-shaped, acute and somewhat lobed, without any callosity on the edge, unequally and doubly serrato-dentate, lightly bullate, crisped at the margin when young, above green, with white spots, and having a pellucid, short, awl-shaped hair, rising from the centers of a few of the spots, below blood-colored, but when old, blanched, smooth, except at the vein , where there are a few hairs ; vein prominent, especially below : petioles distichous, at first suberect, afterward spreading or divaricated, nearly as long as the leaves, rounded, flattened a little, and slightly channeled above. Cyme axillary, peduncled, drooping, rather longer than the petioles and foliage, dichotomous, peduncles and pedicels flattened. two obsolete, nearly opposite bracts are on the middle of the female pedicel, but none on the male. Flowers pink, dipetalous, handsome, large, (female, one inch broad, by three quarters of an inch long; male, three quarters of an inch in either diameter,) males in the clefts of the cyme, and on the outside of its subdivisions; those in the clefts expand first, the others nearly at the same time with the corresponding females; petals in them subrotund; in the females more cordate; in both, but especially the latter, subacuminate. Stamens numerous, filaments wedge-shaped at the top, an anther-cell being fixed along each side. Capsule, wings rounded, subequal. Stigmata pale yellow, revolute, angled, pubescent along the edge. This species flowered at the Royal Botanic Garden Edinburgh, in April 1828, having been raised two years before from seed sent by Dr. Johnstone, from Bombay. Like all the other species of Begonia, it requires the heat of the stove. GRAHAM.
Stem Type: Caulescent

Lineage

20 descendants

Parents

No parentage recorded.

Etymology: referring to the flowers with 2 tepals; B.malabarica Lamarck var. dipetala Thwaites, Enum. Pl. Zeyl. :128. 1859. —C.B. Clarke in J.D. Hooker, Fl. Brit. Ind. 2:655. 1979. —Irmscher, Pareys Blumengart. ed. 2 :78. 1960.; malabarica A. de Candolle. 1864, non Lamarck, 1785.; tuberosa herb. Wight ex Wallich,1831; tuberosa herb. Heyne ex A. de C.,1864 non lamarck,1785; bipetala Loddiges in Steudel, Nom. Bot. ed. 2, 1:193. 1840. —Otto & Dietrich, Allg. Gartenzeitung 9:59. 1841. errore typographico pro dipetala Graham. 1828.; malabarica auct. non Lamarck: A. de Candolle, Prodr. 15(1):392. 1864. —J. Doorenbos, Begonian 67:170. 2000. Circulated incorrectly as ‘Mrs. W. S. Kimball’;u044