Dendrobium centrosepalum Schuit., Juswara & Droissart 2016 SECTION Calyptrochilus Schlechter 1905
Photos by Vincent Droissart/TYPE Drawing Judi Stone and PhytoKeys. (61): 47–59.; Four new orchid species from the Lengguru fold belt, West Papua, Indonesia Lina Juswara, André Schuiteman and Vincent Droissart 2016
Common Name or Meaning The Apiculate Sepals Dendrobium
Flower Size .42" [10.5 mm] long
Found in western New Guinea in submontane forest on a thick, vertical, moss-and-lichen-covered trunk of a tree at elevations around 1114 meters as a mini-miniature sized, cool growing epiphyte with a downwards growing, creeping rhizome giving rise to closely spaced, erect, green tinged purplish, oblong-ovoid-fusiform, 3 main internodes, irregularily 5 ribbed pseudobulbs carrying a single, sometimes with an additional reduced, extra leaf, apical, glaucous green, erect, deciduous, narrowly elliptic, apex obtuse minutely 3 dentate, margin smooth, slighty erose at the apex leaf with a short basal sheath that blooms in the spring on an erect, arising laterally from the upper internode of the leafless pseudobulb, peduncle .208" [5.2 mm] long, covered by a few short scales in the basal part, rachis straight, .28" [7 mm] long, 7 flowered inflorescence with a triangular, patent, acuminate, 3-nerved, glabrous, half as long as the ovary floral bract.
"The short and dense inflorescences with small, purple flowers and green-tipped, long-apiculate sepals resemble those of Dendrobium purpureum Roxb., a lowland species from Maluku and Sulawesi. However, the plant habit of the latter is completely different, as Dendrobium purpureum has robust, many-leaved, cane-like, tufted stems up to more than 20" [50 cm] long. Vegetatively, Dendrobium centrosepalum is more similar to Dendrobium aurantiroseum P.Royen ex T.M.Reeve from New Guinea, which also has unifoliate pseudobulbs on a creeping rhizome. However, the latter is a species from high elevations (2100 to 3350 meters) with pink flowers that are about twice as large, while the sepals are not apiculate; in addition, the cross-ridge on the lip is situated below the middle in Dendrobium aurantiroseum and above the middle in Dendrobium centrosepalum." Schuit., Juswara & Droissart 2016
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ; * PhytoKeys. (61): 47–59.; Four new orchid species from the Lengguru fold belt, West Papua, Indonesia Lina Juswara, André Schuiteman and Vincent Droissart 2016 photo/drawing fide;
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