Neobathiea grandidierana (Rchb.f.) Garay, Bot. Mus. Leafl. 23: 188 (1972).
Aeranthes grandidierana Rchb.f., Flora 68: 381 (1885).
Angraecum grandidieranum (Rchb.f.) Carrière, Rev. Hort. (Paris) 59: 42 (1887).
Mystacidium grandidieranum (Rchb.f.) T.Durand & Schinz, Consp. Fl. Afric. 5: 53 (1894).
Neobathiea filicornu Schltr., Repert. Spec. Nov. Regni Veg. Beih. 33: 369 (1925).
A small monopodial epiphyte with growths 4-6 in. (10-15 cm) long. Pseudobulb/stem: The stem is 4-6 in. (10-15 cm) long. Leaves: About 2.4 in. (6 cm) long by 0.8 in. (2 cm) wide. Five or six strap-shaped leaves are carried on the stem. They are dull green in color and slightly bilobed at the apex. Inflorescence: 2.0-2.4 in. (5-6 cm) long. The flowers are carried on a pedicel that is 1.0-1.2 in. (2.5-3.0 cm) long. Flowers: Usually 1 per inflorescence, but occasionally 2 may be produced. The flowers are mostly white, but the column is green, and the lower third of the sepals and petals is green. The lanceolate, rather sharply pointed sepals and petals are spreading and measure about 0.4 in. (1 cm) long by 0.1 in. (0.3 cm) wide. The large, spreading, triangular lip is 0.9-1.1 in. (2.3-2.8 cm) long by 0.5-0.6 in. (1.3-1.6 cm) wide near the base. The spur at the base of the lip is greenish in color and is as much as 5 in. (12 cm) long. The funnel-shaped entrance to the spur is very wide, measuring up to 0.2 in. (0.6 cm) high by 0.2 in. (0.4 cm) wide by 0.3 in. (0.8 cm) long. The column is short and very thick, usually measuring about 0.1 in. (0.35 cm) long.
On Madagascar, plants are found in the Antananarivo region. Plants are also found on Grande Comore Island. They grow in humid evergreen forests at 3300-4900 ft. (1000-1500 m).
Read more of Cultivation of Neobathiea grandidierana (Rchb.f.) Garay,
De la Bathie, H., and H. Humbert. [1939, 1941] 1981. Flora of Madagascar 1-2. The Government of Madagascar and the National Museum of Natural History, Paris. Translated and published in 1 vol., Steven D. Beckman, 621 Palm Ave., Lodi, CA, U.S.A. 95240. Du Puy, D., P. Cribb, J. Bosser, J. and C. Hermans. 1999. The Orchids of Madagascar. The Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, England. Hamilton, R. 1988. When does it flower? 2nd ed. Robert M. Hamilton, 9211 Beckwith Road, Richmond, B. C., Canada V6X 1V7. Hillerman, F. and A. Holst. 1986. An introduction to the cultivated Angraecoid orchids of Madagascar. Timber Press, Portland, Ore. WCSP (2017). 'World Checklist of Selected Plant Families. 09.03-2017; http://apps.kew.org/wcsp/
Click on each image to see a larger version.