Accepted name: Dendrochilum merapiense Schltr., Bot. Jahrb. Syst. 45(104): 10 (1911)

Subgenus – Platyclinis. Section – Eurybrachium.


 
 

Synonyms

 

Dendrochilum liparidiflorum J.J.Sm., Bull. Jard. Bot. Buitenzorg, III, 5: 58 (1922).

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1700 - 1800 metres (Jim Comber)

1500 metres (Schlechter)

 

Habitat in the Wild

 

This species has been collected from Mount Merapi in Agam Province at 1800 metres and on Mount Talang at Laras Talang at1700 metres.

 

The Plants Description

 

The pseudobulbs are spaced close together on a short rhizome. The pseudobulbs are shaped oblong-cylindrical and measure 1.8cm long and 5mm in diameter. The pseudobulbs narrow at their apex. The leaves are petiolate. The leaf blades are shaped linear and have acute apices. The leaf blades measure 8cm long and 5mm wide.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle measures 3cm long. The rachis is flattened and measures 5-6cm long. The flowers are spaced 3.75mm apart

 

The Flowers

 

Between 10 and 15 flowers grow on an inflorescence. The colour is brown or light violet. The dorsal sepal is shaped ovate-lanceolate and has an acute apex. The lateral sepals are shaped ovate-lanceolate and have obliquely acuminate apices. The lateral sepals measure 3.5mm long and 1.3mm wide. The petals are shaped slightly falcate and obliquely strap-shaped. The petals have short acuminate apices and are shorter than the sepals. The labellum is 3-lobed. The labellum measures 2.5mm long and 2.7mm wide across the side lobes and 1.5mm wide across the mid lobe. The side lobes are shaped triangular and are situated at the base of the labellum. The side lobes apices are acuminate and measure 1mm long and 0.6mm wide. The mid lobe is shaped ovate and has an acute apex; the margins near its apex are erose. There is a small callus between the side lobes and 2 short keels on either side of the callus. The column measures 1.5mm long and has a large apical hood. The margins on the apical hood are erose. The stelidia grow from the base of the column and reach the anther cap but not the column apex. The stelidia are shaped narrowly oblong and have obtuse apices.

 

Herbarium Specimens

 

Holotype

 

I could not locate the type

 

 

Isotype

 

National Herbarium Netherlands (L)

 

Specimen L0058433 (photo) (Dendrochilum liparidiflorum)

 

AMES

 

Specimen 98784 (drawing of the type)

 

Scent

 

I could find no record.

 

Flowering Season

 

The type was collected in flower during January. Other flowering plants have been collected in the wild during October.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum hastatum (please see this page for the differences)

Dendrochilum dewildei (please see this page for the differences)

 

Other Information

 

Schlechter wrote that the labellum distinguishes this species from all others. Jim Comber in the Orchids of Sumatra placed Dendrochilum liparidiflorum as a synonym of Dendrochilum merapiense because the flowers were almost identical apart from the flower colour. Dendrochilum liparidiflorum is a light violet colour.

 

Reference

 

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

 

SCHLECHTER, R. 1911, Beiträge zur Kenntis der Orchideen Flora von Sumatra, Botanishe Jahrbücher fur Systematik Pflanzengeshicte und Pflanzengeograhie, number 104 page 1-61

 

World Checklist of Selected Plant Families. 04 November 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 04 November 2008.