Accepted name: Dendrochilum vaginatum J.J.Sm., Recueil Trav. Bot. Néerl. 1: 61 (1904)

Subgenus – Platyclinis. Section – Eurybrachium.


 
This drawing is by J.J. Smith and is from his Orchids of Java
 

Synonyms

 

None

 

Origin in the Wild

 

Java and Sumatra

 

Elevation in the Wild

 

1520 metres (Sumatra)

1346 metres (Java)

 

Habitat in the Wild

 

This species can be found in Java on Mount Karang and Mount Palosari and has been collected along the Merek to Sidikalang road in Northern Sumatra.

 

The Plants Description

 

The pendent and branching rhizomes can measure up to 35cm long and 3.5mm in diameter. The rhizomes are covered with brown sheaths. The pseudobulbs are spaced 5-8cm apart and are shaped terete. The pseudobulbs measure 3-3.5cm long and 3.5mm in diameter. The leaves are petiolate, the petiole measures 1cm long. The leaf blades are shaped ovate-lanceolate and have acute apices. The leaf blades measure 13-15cm long and 2.5cm wide.

 

The Inflorescence

 

The inflorescence emerges from fully developed pseudobulbs. The peduncle measures 6cm long. The rachis measures 16cm long and is curved or nodding. The flowers are spaced 2-2.25mm apart.

 

The Flowers

 

The inflorescence has approximately 30 flowers on it. The sepals and petals spread widely. The sepals measure 4mm long and the petals measure 3.5mm long. The sepals and petals are shaped lanceolate and have acute apices. The labellum is 3-lobed and measures 3.2mm long and 1.75mm wide. The side lobes are indistinct, shaped triangular and have tooth like apices. Each side lobe has a smaller tooth above it. The mid-lobe is shaped ovate-rhomboid and has an acuminate apex. The labellum has erose margins. There are two small basal ridges. The column measures 1mm long. The apical hood is short and arching and has a five-dentate wing. The stelidia are broad, short and grow from the base of the column. The stelidia do not reach the column apex.

 

Herbarium Specimens

 

Syntype

 

National Herbarium Netherlands, Leiden (L)

 

Specimen L0058487 (photo)

Specimen L0058488 (photo)

Specimen L0058489 (photo)

Specimen L0058490 (photo)

 

 

Other herbarium specimens

 

Kew Botanical Garden (K)

 

Specimen K000079158 (mixed sheet with Dendrochilum cornutum)

 

Scent

 

I could find no record

 

Flowering Season

 

Flowering plants have been collected in the wild during October.

 

Culture

 

I do not think this species is in cultivation.

 

Similar species

 

Dendrochilum incurvibrachium (see this page for the differences)

Dendrochilum teleense (see this page for the differences)

 

Other Information

 

Jim Comber wrote that this species was collected on Gunung Pulosari in western Java and not collected again. At least during 1990 there was forest remaining there and Comber suggested that the plant should be looked for again and on Gunung Karang (Comber 1990).

 

Reference -

 

COMBER, J.B. Orchids of Java, 1990, Royal Botanic Gardens Kew, UK

 

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

 

World Checklist of Selected Plant Families. 24 September 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 24 September 2008.