DESCRIPTION:--_Stems_ 4 cm. high, 4-angled, minutely pubescent. _Rudimentary leaves_ 2 mm. long, deltoid, acute. _Flowers_ 1-3 together arising about 2/3 up the stem. _Pedicels_ 1·7 cm. long, terete, minutely pubescent. _Sepals_ 5 mm. long, linear-lanceolate, acute, minutely pubescent. _Corolla_ 3·6 cm. across when expanded; lobes 1·5 cm. long, ovate-lanceolate, strongly revolute, so that they appear almost linear, acute, strongly rugose; tube saucer-shaped, covered with numerous clavate hairs about 1 mm. long. _Outer corona lobes_ 4·5 mm. long, 3-lobed, concave on the inner face, with the middle lobe narrower and longer than the side lobes and with the side lobes sometimes bifid or trifid. _Inner corona lobes_ 5 mm. long, incumbent over the anthers, 2-horned, with the upper horn erect and curving outwards above, and with the lower horn erect-spreading shorter than the upper horn (National Herb. 2712). * * * * * PLATE 121.--Fig. 1, surface view of flower; Fig. 2, median longitudinal section of flower; Fig. 3, sepal; Fig. 4, petal; Fig. 5, outer corona; Fig. 6, inner corona and pollen sac; Fig. 7, pollinia. F.P.S.A., 1924. [Illustration: _122._] PLATE 122. ANSELLIA GIGANTEA. _Transvaal, Natal, Portuguese East Africa._ ORCHIDACEAE. Tribe VANDEAE. ANSELLIA, _Lindl._; _Benth. et Hook. f. Gen. Plant._ vol. iii. p. 537. =Ansellia gigantea=, _Reichb. f. in Linnaea_, vol. xx. p. 673; _Fl. Cap._ vol. v. sect. 3, p. 62. This epiphytic orchid belongs to a tropical African genus of about 6 species, and is the only representative which occurs in South Africa. The flowers are a pale lemon colour, sometimes barred or blotched with brown. Specimens were sent to England from Natal prior to 1857, and might be considered, as was suggested by Hooker and the late Dr. Bolus, a colour variety of the tropical African _Ansellia africana_. Mr. Rolfe in the _Flora Capensis_ considers it to be a distinct species, as described by Reichenbach, and we have followed his naming. The figure given by Bolus (_Ic. Orch. Austro-Afric._ 11. t. 29) represents a colour form different from that reproduced here. The plant is found in the mountainous parts of the eastern Transvaal, on the coast of Natal, and near Delagoa Bay. Our figure was prepared from a specimen which flowered at the Division of Botany in June 1922, and which was collected by Mrs. Sinclair Allen on the Lebombo Mountains in Swaziland.