Fernandoa Welw. ex Seem., J. Bot. 3: 330. 1865 (sphal. Ferdinandia), nom. illeg.; J. Bot. 4: 123. 1866.

Ngernsaengsaruay, Chatchai, Meeprom, Nattanon, Boonthasak, Weereesa, Attasook, Yanatshara & Thunthawanich, Raweewan, 2023, A taxonomic revision of Thai Fernandoa Welw. ex Seem. (Bignoniaceae), PhytoKeys 235, pp. 249-270 : 249

Fernandoa Welw. ex Seem., J. Bot. 3: 330. 1865 (sphal. Ferdinandia), nom. illeg.; J. Bot. 4: 123. 1866.

Kigelianthe Baill., Hist. Pl. 10: 50. 1891.

Haplophragma Dop, Bull. Soc. Bot. France 72: 889. 1925.

Spathodeopsis Dop, Compt. Rend. Hebd. Séances Acad. Sci. 189: 1096. 1929; et Bull. Mus. Natl. Hist. Nat., Sér. 2, 2: 151. 1930.

Hexaneurocarpon Dop, Compt. Rend. Hebd. Séances Acad. Sci. 189: 1097. 1929; et Bull. Mus. Natl. Hist. Nat., Sér. 2, 2: 153. 1930.

Tisserantodendron Sillans, Bull. Soc. Bot. France 98: 270. 1952.

Type species.

Fernandoa superba Welw. ex Seem. = Fernandoa ferdinandi (Welw.) Baill. ex K. Schum.

Description.

Trees. Leaves 1-pinnate, imparipinnate, decussate; rachises not keeled above; leaflets 5-9, opposite, chartaceous to subcoriaceous, with scattered glands on both surfaces or a few scattered glands and small hairy domatia in the axil of lateral veins below. Inflorescence a terminal thyrse or raceme, densely stellate tomentose, densely dendroid tomentose, sparsely haired or glabrous. Flowers nocturnal; calyx persistent, campanulate or tubular-campanulate, irregularly 2-5-lobed; corolla yellowish-green, creamy white to pale yellow, corolla tube curved, constricted between basal and upper parts, basal tube short cylindrical, upper tube campanulate or infundibuliform-campanulate, bilabiate, 5-lobed, upper lobes 2 and lower lobes 3, subequal or unequal, crisped; stamens 4, didynamous, subexserted, anthers divaricate; staminode present; disc annular, surrounding the base of ovary; ovary superior, cylindrical, densely dendroid tomentose or glabrous, 2-celled, septum of the ovary flat without pseudoseptum, ovule numerous, axile placenta, style slender, stigma 2-lobed. Fruit a loculicidal capsule, cylindrical, twisted or straight to slightly arcuate, with longitudinal ridges, densely dendroid tomentose or glabrous, septum flat. Seeds numerous, flat, rather rectangular with a lateral hyaline-membranous wing.

A genus of fifteen species, distributed from Africa (5), Madagascar (3), and continental Southeast Asia to Sumatra (7); two species in Thailand.