Calanthe aceras Schltr. 1905 SUBGENUS Calanthe SECTION Aceratochilus

Drawing by Schlechter and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Full shade Cool Summer Fall

Common Name The Hornless Calanthe

Flower Size 1.6" [4 cm]

Found in New Guinea in montane forests and along valley floors at elevations around 1200 to 1500 meters as a large sized, cool growing terrestrial with a very short rhizome giving rise to stems carrying broadly lanceolate, acuminate, gradually narrowing below into the 16" [40 cm] long, petiolate base leaves that blooms in the summer through fall on an erect, peduncle to 20 to 60" [50 to 150 cm] long, rachis to 20" [50 cm] long, 40 to 80" [100 to 200 cm] long overall, densely many flowered inflorescence with deciduous, lanceolate, acuminate, as long as the ovary floral bracts.

Schlechter states that the sepals and petals are yellowish to brown yellow and the lip and column are white.

Synonyms Coelogyne palilabellata Gilli 1980 publ. 1983; Gynoglottis palilabellatum (Gilli) Garay & W.Kittr. 1984 publ. 1985

References W3 Tropicos, Kew Monocot list , IPNI ; Orchidaceae of German New Guinea Schlechter 1912 drawing fide; Die Orchideen Band 3 Sonderabdruck aus Schlechter Brieger, Maatsch and Senghas Liferung #14 820 - 880 1984; The Genus Calanthe Cribb & Clayton 2013 photo fide;