Table 1. Comparison of differences and measurements of Aerangis bovicornu and A. fastuosa , based on 28 herbarium specimens and the types of the varieties of the latter.
Aerangis fastuosa Aerangis bovicornu
Dorsal sepal (mm) 17 – 36 × 5.5 – 9 7.8 – 8.6 × 3.6 – 3.9
Lateral sepals (mm) 19 – 36 × 5.5 – 8.5 8.7 – 8.9 × 3.5 – 3.7
Petals (mm) 19 – 34 × 6 – 10 8.3 – 8.6 × 3.8 – 4.1
Lip (mm) 20 – 34 × 5 – 13 7.6 – 8.2 × 3.9 – 4.1
Spur 70 – 102 × 1 – 1.8 mm, generally coiled 20 – 23 × 0.9 –1.3 mm, straight
Column 3 – 4 × 2 – 3 mm, apex broadened 3 – 5 mm × 1 – 3 mm, apex narrow
Anther 2.2 – 4 × 1.8 – 2 mm, conical with long beak up to 1.4 × 1.6 mm, broadly obovoid
with a small rounded swelling at the apex
Flowering time June to November December to January
persistent identifier: http://table.plazi.org/id/3D81EECBFFF3FA6DFF52FF132F03FEDA
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Published as part of Hermans, Johan, Rajaovelona, Landy, Cribb, Phillip (2021). New species in Orchidaceae from Madagascar. Kew Bulletin 76: 39-56. DOI: 10.1007/S12225-021-09923-W on page 43