Accepted name: Dendrochilum longibracteatum Pfitzer in H.G.A.Engler (ed.), Pflanzenr., IV, 50 II B 7: 106 (1907)

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1600 – 2400 metres

 

Habitat in the Wild

 

This species has been collected over a large demographic range. Collections have been made from Bengkulu Province and Jambi and from Aceh Province on Gajolanden in Gunung Pesagi.

 

The Plants Description

 

The pseudobulbs are shaped narrowly cylindrical and are arranged in 2 rows along the rhizome. The pseudobulbs measure 12cm long and 0.8cm wide. The leaves are petiolate; the petiole measures 6cm long. The leaf blades are shaped linear-lanceolate and have obtuse apices. The leaf blades measure 30cm long and 2cm wide.

 

The Inflorescence

 

The inflorescence is synanthous and grows at the same time as the leaves.

 

The Flowers

 

The flower is yellow a colour, the labellum is brown. The sepals are shaped narrowly ovate-triangular and have acute apices. The petals are roughly shaped the same as the sepals although they have acuminate apices. The labellum is 3-lobed. The side lobes are small and tooth like. The mid-lobe is shaped ovate and is concave, its apex is acute. There are 2 calli at the base of the labellum, the calli are a half moon shape. The stelidia grow from the middle of the column and do not reach the column apex. The stelidia are shaped linear falcate.

 

Herbarium Specimens

 

Holotype

 

I could not locate the specimen

 

Unknown Type Material

 

Royal Botanic Gardens, Kew (K)

 

Specimen K000079125 (Photo)

 

Other herbarium specimens

 

National Herbarium Netherlands (L)

 

Specimen L0322552

Specimen L0322553

Specimen L0322554

Specimen L0322555

Specimen L0322556

Specimen L0322557

Specimen L0322558

 

Scent

 

I could find no record

 

Flowering Season

 

Flowering plants have been collected in the wild during January, February, October and November.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum sumatranum

Dendrochilum polluciferum (please visit this page for the differences)

 

Other Information

 

J.J. Smith wrote that this species could be the same as Dendrochilum sumatranum. Jim Comber wrote that they differ because Dendrochilum longibracteatum has stelidia that grow from the middle of the column not the column’s base as in Dendrochilum sumatranum. The side lobes of Dendrochilum sumatranum are longer and bristle like (Comber 2001).

 

Reference

 

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

 

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