Accepted name: Dendrochilum microstylum Schltr., Repert. Spec. Nov. Regni Veg. 9: 339 (1911)

Subgenus – Platyclinis. Section – Eurybrachium.


 
 

 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1600-1700 metres

 

Habitat in the Wild

 

This species has been collected on Mount Singgalang, Agam in Western Sumatra.

 

The Plants Description

 

The long creeping rhizomes measure up to 50cm long; the pseudobulbs are spaced 3.5cm apart along it. The pseudobulbs are shaped terete and measure 2.0-2.8cm long and 3-4mm in diameter. The leaf blades are shaped narrowly lanceolate and have acute apices. The leaf blades measure 6.5-14cm long and 0.5-1.3cm wide. I could find no record on the petiole length.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle measures 3-5cm and the rachis measures 9cm. The flowers alternate distichously.

 

The Flowers

 

The dorsal sepal is shaped ovate-lanceolate and has an acuminate apex; the dorsal sepal has a thickened keel and measures 5mm long. The lateral sepals are shaped falcate and oblique. The petals are obliquely ovate-lanceolate to ovate and have acuminate apices. The petals are slightly shorter than the sepals. The labellum is 3-lobed and measures 4mm long. The side lobes emerge from the base of the labellum are rounded and measure 1mm long. The mid-lobe is shaped rhomboid-ovate and has an acute apex. The mid lobe measures 3.5mm long and 2.5mm wide. There are three keels that run from the base of the labellum and terminate ¾ of its length. There are 2 small semi-circular lamellae between the side lobes. The apical hood on the column is shaped triangular and has a rounded apex. The column does not have stelidia but has two small projections 1/3 of its length from the base.

 

Herbarium Specimens

 

Holotype

 

FI

 

Other herbarium Specimens

 

Royal Botanic Gardens, Kew (K)

 

Specimen K000078217 (drawing from the type)

 

AMES

 

Specimen 98786 (drawing of the type)

 

Other herbarium specimens

 

National Herbarium Netherlands (L)

 

Specimen L0269660

 

Scent

 

I could find no record

 

Flowering Season

 

Plants have been collected in the wild during June and July.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

NA

 

Other Information

 

Schlechter wrote that this species differs from others by the column

 

Reference

 

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

 

SCHLECHTER, R. 1911, Repert. Spec. Nov. Regni Veg. 9: 217-266

 

World Checklist of Selected Plant Families. 01 September 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 01 September 2008.