The genus Calanthe is a widespread genus of terrestrial orchids (family Orchidaceae) with about 150 species.
The genus is found in all tropical areas, but mostly concentrated in Asia.
This genus is abbreviated Cal. (the full stop is important) in trade journals. The genus is divided into 2 groups: deciduous species and evergreen ones. The first man made hybrid in this genus is Calanthe dominii (Calanthe masuca × Calanthe furcata) which was made by John Dominy in 1853.
The genus can be divided into two sections of Eucalanthe and Preptanthe. Plants from these two sections can not be hybridized. The section Eucalanthe are deciduous plants which has a gray-green membranous sheath covering the pseudobulbs. The section Preptanthe is evergreen and has small pseudobulbs and long lived leaves.
Plants grow in various temperatures depending on their habitat location. They require moderate light to shady conditions. When potting Calanthe plants, the pseudobulbs must be half buried into the potting media. Plants can be potted in 40% soil, 40% dry bark and 20% perlite or another humus rich soil mixture. Plants that are evergreen can be watered regularly. Deciduous plants should be with consistent moisture during spring and summer when there is new growth. As leaves begin to yellow reduce watering to allow the plants to dry between waterings. During winter with hold watering and keep the plant humid.
Plants are named after the beauty of the flowers in the genus.
- Alismorchis Thou. 1822
- Alismorkis Thou. 1809
- Amblyglottis Bl. 1825
- Aulostylis Schlechter 1912
- Calanthidium Pfitz. 1889
- Centrosis Thou. 1822
- Cephalantheropsis Guillaumin 1960
- Cytheris Lindley in Wall. 1831
- Ghiesbreghtia A. Rich & Gal. 1845
- Limatodis Lindley 1825
- Paracalanthe Kudô 1930
- Preptanthe Lindley 1853
- Styloglossum Kuhl & v.Hass. 1829
- Zoduba Buch.-Ham. ex D.Don 1825
The plant can be separated into two subsections.
- Section Eucalanthe
- Section Preptanthe
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