Key to the genus Eulophia in Ivory Coast
1 | Spur 15-33 mm long, filiform | Eulophia guineensis |
1a | Spur saccate to conical | 2 |
2 | Lip more than 11(15) mm long | 3 |
2a | Lip less than 10(14) mm long | 16 |
3 | Basal part of the lip elongate into the conical or club-shaped, but prominent spur | 4 |
3a | Basal part of the lip saccate or saccate-conical, does not produce any prominent spur | 10 |
4 | Lip sidelobes almost entirely fused with the column foot | Eulophia orthoplectra |
4a | Lip sidelobes fused with obscure column foot only basally | 5 |
5 | Lip with lamellate-cristate ridges in the central part | 6 |
5a | Lip with verrucose, crenulate or glabrous ridges in the center and/or in the apex, short lamellae, if present, only near the base | 8 |
6 | Lamellae ribon-like, equal in width along their length | Eulophia horsfallii |
6a | Basal and apical lamellae distinctly narrower than much larger central ones | 7 |
7 | Lateral sepals 9-10.6 mm long, 3.5-6 mm wide. Lip 14-16 mm long, 19-21 mm wide | Eulophia schweinfurthii |
7a | Lateral sepals 13-17 mm long, 3-4.5 mm wide. Lip 16-25 mm long and wide | Eulophia barteri |
8 | Lip with basal wing-like lamellae, with verrucose or crenulate ridges above | Eulophia cristata |
8a | Lip with slightly thickened nerves at base and/or in the centre of epichile | 9 |
9 | Spur cylindrical to clavate, straight. Sepals and petals subsimilar | Eulophia euglossa |
9a | Spur saccate to saccate-conical. Sepals and petals dissimilar | Eulophia juncifolia |
10 | Hypochile transversely elliptic, distinctly wider than long | 11 |
10a | Hypochile orbicular, obovate or elliptic in general outline, as long as wide or longer | 12 |
11 | Epichile distinctly clawed. Petals elliptic-obovate, widest at apex | Eulophia buettneri |
11a | Epichile sessile to subsessile. Petals oblong-elliptic to obliquely broadly elliptic-ovate, widest near the middle | Eulophia cucullata |
12 | Hypochile widest at apex | 13 |
12a | Hypochile widest near the middle | 14 |
13 | Epichile as wide as hypochile, elliptic in outline | Eulophia flavopurpurea |
13a | Epichile narrower than hypochile, attenuate towards the apex | Eulophia adenoglossa |
14 | Epichile transversely elliptic, distinctly wider than long | Eulophia alta |
14a | Epichile oblong to obovate, longer than wide | 15 |
15 | Epichile with 5 densely papillate ridges | Eulophia caricifolia |
15a | Epichile with 3 tall, crenulate ridges | Eulophia angolensis |
16 | Lip transversely elliptic in general outline, truncate at apex | Eulophia gracilis |
16a | Lip not as above | 17 |
17 | Basal part of the lip much wider than the apical one | Eulophia leonensis |
17a | Basal part of the lip only slightly wider thanh the apical one | 18 |
18 | Spur conical, acute. Sepals and petals ca. twice as long as wide | Eulophia odontoglossa |
18a | Spur usually clavate, blunt. Sepals and petals 3-5 times longer than wide | 19 |
19 | Leaves vestigial, up to 10 cm long | Eulophia monile |
19a | Inflorescence produced before leaves. Leaves 10-30 cm long | 20 |
20 | Lip with 2 longitudinal thickenings running to the mid-way of hypochile, above few clavate thickenings on hypochile. Spur conical-cylindrical | Eulophia. milnei |
20a | Lip with 3 longitudinal thickenings running to the base of epichile, no other thickenings on hypochile. Spur with ampullaceous apex | Eulophia brevipetala |
Species without a key
Eulophia pyrophila (Rchb.f.) Summerh. | Trop. Africa |
Eulophia sordida Kraenzl. | W. Trop. Africa to Congo |
World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 27/07/2019