Accepted name: Dendrochilum insectiferum (Ridl.) J.J.Sm., Bull. Jard. Bot. Buitenzorg, III, 5: 53 (1922)

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

Platyclinis insectifera Ridl., J. Fed. Malay States Mus. 8(4): 89 (1917).

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1900 – 2400 metres

 

Habitat in the Wild

 

This species has been found in open swamp forest on Mount Kerinci.

 

The Plants Description

 

The pseudobulbs cluster together on a short and branching rhizome. The pseudobulbs are spaced 7mm apart, shaped oblong and are narrowed at their apices. The pseudobulbs measure c2.3cm long. The leaves are petiolate; the petiole measures c3cm long. The leaf blades are shaped elliptic-lanceolate and are abruptly narrowed at their apices. The leaf blades measure c11.5cm long and c4cm wide.

 

The Inflorescence

 

The inflorescence is synanthous and appears from the pseudobulbs at the same time as the leaves. The peduncle measures 8.5-17cm long. The rachis is flattened and quadrangular in cross section. The flowers are spaced 5mm apart.

 

The Flowers

 

Jim Comber wrote that between 9 and 14 flowers grow on an inflorescence. Jim Comber gave the colour as pale, the sepals with 2 brown bars, the petals with 1 brown bar and the labellum brown with a pale line running its length (Comber 2001). The dorsal sepal is shaped oblong-ovate and has a shortly apiculate apex. The dorsal sepal measures c8.75mm long and c4mm wide. The lateral sepals are shaped obliquely-ovate and have apiculate apices. The petals are shaped obliquely-oblong and have acuminate apices that recurve. The petals measure c6.8mm long and c3mm wide. The labellum is 3-lobed and recurved above its base and apex. The side lobes are short and rounded at their apex. The side lobes grow to about 2/5 the length of the labellum and the mid-lobe the other 3/5. The mid-lobe is shaped broadly lanceolate and has an acute apex. The column is narrow and curved and measures c4.4mm long. The apical hood has a triangular apex. The stelidia grow from the base of the column and do not reach the column apex. The stelidia measure 3mm long, are broad basally and narrowed to thin and acute apices.

 

Herbarium Specimens

 

Holotype

 

I could not locate the specimen

 

Other herbarium specimens

 

Royal Botanic Gardens Kew (K)

 

Specimen K000079114

 

National Herbarium Netherlands (L)

 

Specimen L0269617

 

Scent

 

I could find no record.

 

Flowering Season

 

Flowering plants have been collected in the wild during April and May.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum simile

 

Other Information

 

The name is given because the flowers are brown or black and insect like.

 

Ridley wrote that this species is similar to Dendrochilum simile but differs by the large and broad stelidia.

 

Reference

 

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

 

World Checklist of Selected Plant Families. 09 January 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 09 January 2009.