Accepted name: Dendrochilum duplicibrachium J.J.Sm., Bull. Jard. Bot. Buitenzorg, III, 5: 41 (1922)

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

Around 1,000 metres

 

Habitat in the Wild

 

This species has been collected on Mount Rimbo Pengadang in the Bukit Barisan Mountains, Bengkulu Province.

 

The Plants Description

 

The pseudobulbs cluster together on a short rhizome. The pseudobulbs are shaped terete and narrowed at their apices. The pseudobulbs measure 11cm long and 7mm in diameter. The leaves are petiolate; the petiole measures 4.25cm long. The leaf blades are shaped lanceolate and have acute apices. The leaf blades measure 18cm long and 3.3cm wide. The leaves are green on their upper surface and have purple spotting underneath.

 

The Inflorescence

 

The peduncle measures 13cm long. The rachis is pendent and measures c13cm long. The flowers are spaced 3mm apart.

 

The Flowers

 

The flowers are brownish and green basally, the labellum is light reddish brown with pale margins. The column is pale green and the stelidia are white. The dorsal sepal is shaped narrowly lanceolate and has an acute apex. The dorsal sepal is concave with recurved margins and measures 6.3mm long. The lateral sepals are shaped obliquely lanceolate and measure c6.3mm long and 1.6mm wide. The petals are shaped obliquely lanceolate and have acuminate apices. The petals measure 5.3mm long and 1.5mm wide. The petal margins are white. The labellum is entire and curved. The hypochile is shaped quadrangular and has dentate margins. The epichile is shaped ovate and has an obtuse apex that is convex and minutely erose. The column measures 2.5mm long, the apical hood has erose margins. The stelidia grow from the middle of the column and are broader at their base. The stelidia are shaped obliquely triangular, falcate and have acute apices. The stelidia barely reach the column apex.

 

Herbarium Specimens

 

Syntype

 

National Herbarium Netherlands, Leiden (L)

Specimen L0058444

Specimen L0058445

 

Scent

 

I could find no record

 

Flowering Season

 

I could find no record

 

Culture

 

I do not think this species is in cultivation. The Leiden syntype is of a plant that was cultivated in Bogor Botanic Garden in 1916.

 

Similar Species

 

Dendrochilum simile

Dendrochilum odoratum

Dendrochilum bandaharaense (see this page for differences)

Dendrochilum beccarii

 

Other Information

 

J.J. Smith wrote that this plant was similar to Dendrochilum simile and Dendrochilum odoratum but differs by its flower colour, denticulate labellum and 3 keels.

 

Reference

 

COMBER, J.B. Orchids of Sumatra, 2001, Royal Botanic Gardens Kew

 

World Checklist of Selected Plant Families. 24 November 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 24 November 2008.