Disperis anthoceros

Croix, Isobyl la, Bosser, Jean & Cribb, Phillip J., 2002, The genus Disperis (Orchidaceae) in Madagascar, the Comores, the Mascarenes and the Seychelles, Adansonia (3) 24 (1), pp. 55-87 : 56-57

1. Dorsal sepal and petals joined to form a distinct erect tapering spur ................................ 1. D. anthoceros

1’. Dorsal sepal and petals joined to form an open hood ................................................................................ 2

2. Leaves opposite or subopposite ................................................................................................................ 3

2’. Leaves distinctly alternate ........................................................................................................................ 7

3. Lateral sepals clearly joined at the base for 1/3-1/2 of their length ............................................................ 4

3’. Lateral sepals free more or less to the base ................................................................................................ 5