A taxonomic revision of Thai Fernandoa Welw. ex Seem. (Bignoniaceae) Author Ngernsaengsaruay, Chatchai https://orcid.org/0000-0002-7131-976X Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand fsciccn@ku.ac.th Author Meeprom, Nattanon https://orcid.org/0000-0003-4193-7062 Biodiversity Center, Kasetsart University (BDCKU), Chatuchak, Bangkok 10900, Thailand Author Boonthasak, Weereesa Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand Author Attasook, Yanatshara Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand Author Thunthawanich, Raweewan Department of Botany, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand text PhytoKeys 2023 2023-11-22 235 249 270 http://dx.doi.org/10.3897/phytokeys.235.112839 journal article http://dx.doi.org/10.3897/phytokeys.235.112839 1314-2003-235-249 4C22DB9279165E0BB4E8F10ACDD720EB 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. Seances Acad. Sci. 189: 1096. 1929; et Bull. Mus. Natl. Hist. Nat., Ser . 2, 2: 151. 1930. Hexaneurocarpon Dop, Compt. Rend. Hebd. Seances Acad. Sci. 189: 1097. 1929; et Bull. Mus. Natl. Hist. Nat., Ser . 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.