Accepted name: Dendrochilum cordatum H.A.Pedersen, Lindleyana 16: 231 (2001).

Subgenus – Platyclinis. Section – Platyclinis.


 
 
 

Synonyms

 

None

 

Origin in the Wild

 

Luzon

 

Elevation in the Wild

 

2,000 metres

 

Habitat in the Wild

 

This species has been collected near Imugan in Neuva Vizcaya Province.

 

This species grows in half shade within montane forest (Pedersen 2001).

 

The Plants Description

 

The pseudobulbs cluster together on a short rhizome. The pseudobulbs are shaped fusiform and measure 3.0-3.5cm long and 0.4-0.5mm wide. The pseudobulbs are covered by 3-4 cataphylls while they are growing. The cataphylls disintegrate into persistent fibres as the pseudobulbs mature. The leaves are petiolate; the petiole measures 7.7-8.3cm long. The leaf blades are convolute, shaped linear-lanceolate and have acute to acuminate apices. The blades measure 17.3-19.3cm long and 1.2-1.3cm wide. The leaves are leathery and have 5 distinct nerves along their length.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle is erect to slightly curved and measures c17.8cm long. The rachis is quadrangular is transverse section, pendent and measures c17.0cm long. The flowers alternate distichously and are spaced 3-4mm apart. There are c5 appressed non-floriferous bracts at the base of the rachis. The flowers open from the central section of the rachis.

 

The Flowers

 

The sepals and petals are olive green, the labellum is olive green suffused with brown on its distal part. There is a pale longitudinal line on the labellum. The sepals and petals either spread widely. The dorsal sepal is shaped lanceolate-oblong and has an acuminate apex. The dorsal sepal measures 6.1-6.6mm long and 2.6-2.7mm wide. The dorsal sepal is three veined and has entire margins. The lateral sepals are shaped obliquely lanceolate-oblong and have acuminate apices. The lateral sepals measure 6.2-6.4mm long and 2.9-3.0mm wide. The lateral sepals are three veined and have entire margins. The petals are shaped narrowly obovate-subspathulate and have acute apices. The petals measure 6.4-6.5mm long and 3.4-3.6mm wide. The petals are three veined and have entire to finely erose margins. The labellum is easily versatile, porrect, distinctly clawed and entire. There are three obscure veins on the labellum. The labellum measures 2.8-3.0mm long and 3.0-3.1mm wide. The labellum is shaped cordate and has an obtuse apex. The margins are entire. There are two longitudinal keels and a distal callus in the centre of the epichile. The column is erect, has a knee like bend below the stigmatic cavity and measures 3.5-3.6mm long. The column foot is obscure. The apical hood covers the anther cap and is not elongated. The stelidia grow upwards from the base of the column and are much shorter than the column apex. The stelidia are shaped linear-oblong and have obtuse apices. (Pedersen 2001).

 

Herbarium Specimens

 

Holotype

 

NSW

 

Specimen 420797

 

Scent

 

I could find no record.

 

Flowering Season

 

Plants have flowered in cultivation in Australia during early winter.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

NA

 

Other Information

 

This species was discovered by David Banks and Jim Cootes on a trip to the Philippines in 1996. The holotype was prepared from a plant flowering in the cultivation of Jim Cootes in 1998.

 

Henrik Pedersen added this species to the subgenus Platyclinis and section Platyclinis but wrote that it was unusual by not having an elongated apical hood. Pedersen wrote that this species is an isolated species within the section on account of its cordate labellum, obscure column foot and apical hood (Pedersen 2001).

 

The epithet refers to the cordate labellum.

 

Reference

 

PEDERSEN, Henrik. 2001, One new and one rediscovered species of Dendrochilum from the Philippines, Lindleyana 16(4) 231-234.

 

World Checklist of Selected Plant Families. 18 August 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 18 August 2009.