Accepted name: Dendrochilum dempoense J.J.Sm., Bull. Jard. Bot. Buitenzorg, II, 25: 9 (1917)

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

Not known

 

Habitat in the Wild

 

This species has been collected from Mount Dempo near Palembang.

 

The Plants Description

 

The pseudobulbs grow close together and are shaped narrowly ovoid. The pseudobulbs are brown and measure 3.7cm long and 1.3cm in diameter. The leaves are petiolate; the petiole measures 1.1cm long.  The leaf blades are shaped lanceolate, measure 8.5cm long and 1.6cm wide.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle measures up to c7cm long and the rachis measures to 18cm long. The rachis is zig-zag.

 

The Flowers

 

Approximately 25 flowers are recorded as growing on an inflorescence. The tepals are pale green tinged with brown, the labellum is pale green basally and brown elsewhere. The column is pale green. The dorsal sepal is shaped lanceolate and has an acute apex. The dorsal sepal measures 1.1cm long and 3mm wide. The lateral sepals are shaped obliquely lanceolate and measure approximately 1.1cm long. The petals incurve, are shaped obliquely lanceolate and have acute apices. The petals measure 1cm long and 2.4mm wide. The labellum is 3-lobed and recurved above the base. The side lobes are narrow and subulate and have acute apices. The mid-lobe is shaped spathulate to ovate and has a triangular apex that is recurved. There are 2 keels that run from the base. The column is curved and measures 5.75mm long. The apical hood has dentate margins. The stelidia grow upwards from the middle of the column and do not reach the column apex. The stelidia are shaped lanceolate and are unequal near their apices.

 

Herbarium Specimens

 

Holotype

 

I could not locate the specimen

 

Isotype

 

National Herbarium Netherlands, Leiden (L)

 

Specimen L0058450 (photo)

 

Scent

 

I could find no record

 

Flowering Season

 

I could find no record

 

Culture

 

I do not think this species is in general cultivation, the Leiden Isotype states that the plant is in cultivation in the Bogor Herbarium.

 

Similar Species

 

NA

 

Other Information

 

This species has large flowers; the only Dendrochilum with larger flowers are Dendrochilum undulatum and Dendrochilum megalanthum.

 

Reference

 

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

 

World Checklist of Selected Plant Families. 25 November 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 25 November 2008.