Calanthe transiens J.J.Sm. 1922

SUBGENUS Calanthe SECTION Calanthe SERIES Calanthe

TYPE Drawing

Photo by Th. Nordhausen/Drawing by J J Smith and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Part shadeColdspring and again LATERSummer EARLY Fall

Common Name or Meaning The Blooming Fleetingly Calanthe

Flower Size .8" [2 cm]

Found in Sumatra in montane forests at elevations of 2100 to 2400 meters as a medium sized, cold growing terrestrial with close set pseudobulbs carrying 3 to 4, plicate, lanceolate, acute, acuminate, 7 to 9 nerved, gradually narrowing below into the 4.8" [12 cm] long, petiolate base leaves that blooms in the spring and again in the later summer and early fall on an erect, finely pubescent, peduncle to 25.2" [to 63 cm] long, rachis to 5.6" [14 cm] long, overall 30.8" [77 cm] long, many flowered inflorescence with narrowly ovate-lanceolate, shortly pubescent floral bracts.

C transiens has often been confused with the exclusively Bornean species C woodii but C tranisens is a high elevation Sumatran species with shorter curved bracts, shorter sepals, shorter petals, no crenulation to the lip midlobe and a short straight spur.


References W3 Tropicos, Kew Monocot list , IPNI ; The Plants of Mount Kinabalu Vol 2 Orchids Wood Beaman & Beaman 1993 photo not = C woodii; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as C transiens drawing not = C woodii; Orchids of Sumatra Comber 2001 photo not; The Genus Calanthe Clayton & Cribb 2013 drawing ;