Angraecum costatum Frapp. ex Cordem., Fl. Réunion: 211 (1895).
Homotypic Synonyms:
Mystacidium costatum (Frapp. ex Cordem.) Cordem., Rev. Gén. Bot. 11: 425 (1899).
Macroplectrum costatum (Frapp. ex Cordem.) Finet, Bull. Soc. Bot. France 54(9): 25 (1907).
Description:
Plant with erect stems, simple or branched, to 40 cm long, growing in clumps; bearing roots throughout and leaves in the upper part. Leaves alternate in 2 rows, bright green, lanceolate, unequally bilobed at the apex, 6 cm long, 1 cm wide. Inflorescences I or 2 in the leaf axils, intervallate; peduncle slender, usually 2-flowered but one does not develop. Flowers green, small, 5-6 mm in diameter when open; sepals oval; petals smaller, lanceolate; lip concave, boat-shaped; spur short, similar to the lip, slightly swollen towards the tip.
Habitat:
Epiphyte in semi-shade, common; 1200-1800 m; flowering in September and October.
Cultivation:
As given for the genus, cool growing epiphyte.
Distribution:
Mascarenes
References:
Angraecoid Orchids Stewart, Hermans and Campbell 2006; WCSP (2017). 'World Checklist of Selected Plant Families. 22.01-2017; http://apps.kew.org/wcsp/
Images:
Click on each image to see a larger version.
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| Photograph Alain Bastide. Image used with kind permission. | Photograph Alain Bastide. Image used with kind permission. | Photograph P. Bernet ©Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission. | Photograph P. Bernet ©Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission. | Photograph P. Bernet ©Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission. | Photograph P. Bernet ©Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission. |
