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

Subgenus – Platyclinis. Section – Eurybrachium.







Origin in the Wild




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






Other herbarium Specimens


Royal Botanic Gardens, Kew (K)


Specimen K000078217 (drawing from the type)




Specimen 98786 (drawing of the type)


Other herbarium specimens


National Herbarium Netherlands (L)


Specimen L0269660




I could find no record


Flowering Season


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




I do not think this species is in cultivation


Similar Species




Other Information


Schlechter wrote that this species differs from others by the column




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; accessed 01 September 2008.