Accepted name: Dendrochilum ventricosum J.J.Sm., Bull. Jard. Bot. Buitenzorg, III, 5: 42 (1922)

Subgenus – Platyclinis. Section – Eurybrachium.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Sumatra

 

Elevation in the Wild

 

1300 – 1450 metres

 

Habitat in the Wild

 

This endemic species from Sumatra has mainly been collected on Mount Talang.

 

The Plants Description

 

The pseudobulbs measure 1.5-3.4cm long. The leaves are petiolate, the petiole measures 0.25-1.8cm long. The leaf blades are shaped narrowly lanceolate. The leaf blade measures 5.25-18cm long and 0.65-1.9cm wide.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle measures 6.5-13.5cm long. The rachis is shorter and flattened. The flowers are spaced 2-5mm apart.

 

The Flowers

 

The flowers are green. The sepals are joined at their base. The dorsal sepal is shaped oblique to narrowly lanceolate and has an acute apex. The dorsal sepal measures 7.75mm long and 1.75mm wide. The lateral sepals are shaped obliquely and narrowly lanceolate. The lateral sepals are as long as the dorsal sepal and measure 1.4mm wide. The petals are erect and held against the dorsal sepal. The petals are shaped obliquely oblong and have acuminate apices. The apical margins are slightly erose. The labellum is entire, hairy and measures 6.6mm long and 3.6mm wide. The labellum is shaped rhomboid and has an acuminate to acute apex. There are two basal keels. The column measures 1.5mm long. The apical hood is shaped quadrangular and has a truncate apex, its margins is erose. The stelidia grow from below the middle of the column and exceed the apical hood.

 

Herbarium Specimens

 

Isosyntype

 

AMES

 

Specimen 98812 (photo)

Specimen 98813 (photo)

 

 

Isotype

 

National Herbarium Netherlands (L)

 

Specimen L0058485 (photo)

Specimen L0058486 (photo)

 

Scent

 

I could find no record.

 

Flowering Season

 

Flowering plants have been collected in the wild during November.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum edentulum

 

Other Information

 

J.J Smith wrote that this species is similar to Dendrochilum edentulum but differs by the bracts that wrap the flower bases and the labellum that is ventricose above the base.

 

Reference

 

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

 

World Checklist of Selected Plant Families. 03 November 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 03 November 2008.