Accepted name: Dendrochilum warrenii H.A.Pedersen & Gravend., Blumea 49: 358 (2004).

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Mindanao

 

Elevation in the Wild

 

Not known

 

Habitat in the Wild

 

In email correspondence Jim Cootes wrote that this species is found in the north of Mindanao possibly from Bukidnon Province (Cootes pers comm.).

 

The Plants Description

 

The pseudobulbs cluster along a short rhizome. The pseudobulbs are shaped fusiform. The pseudobulbs measure 1.7-1.9cm long and c0.4cm in diameter. The pseudobulbs are covered by 3-4 cataphylls while they are growing. The cataphylls soon disintegrate into persistent fibres as the pseudobulbs mature. The leaves are petiolate; the petiole measures 0.8-1.1cm long. The leaf blades are shaped narrowly linear and have acute apices. The leaf blades measure 9.5-10.5cm long and 0.1cm wide. The leaves are leathery.

 

The Inflorescence

 

The inflorescence is synanthous and finely setose. The peduncle is erect and curved and measures 7.2-8.4cm long. The rachis is quadrangular in cross section, nodding to pendent and measures 2.8-2.9cm long. The flowers alternate distichously and are spaced 2.0mm apart, the rachis axis twists to form a terete rachis. There are 4-5 appressed non-floriferous bracts at the base of the rachis.

 

The Flowers

 

The flower is white. The sepals and petals spread somewhat widely. The dorsal sepal is shaped linear and has an acute apex. The dorsal sepal measures 5.9-6.1mm long and 0.9-1.0mm wide. The dorsal sepal is three veined and has an entire margin. The lateral sepals are shaped linear and have acuminate apices. The lateral sepals measure 6.3-6.7mm long and 2.9-3.0mm wide. The lateral sepals are three veined and have entire margins. The petals are shaped linear-lanceolate and have acute apices. The petals measure 4.4-4.6mm long and 0.8-1.1mm wide. The petals are three veined and have erose margins. The labellum is porrect but bent part way along its length, entire and three veined. The labellum is shaped lanceolate and has an acute to acuminate apex. The labellum measures 2.0-2.2mm long and 0.9mm wide. The labellum has an upturned and erose margin. There are three keels that run nearly the whole length of the labellum, the two lateral keels are thicker at the base and run ¾ of the length of the labellum. The median keel terminates at the labellum apex. The column is slightly incurved and measures 1.1-1.2mm long. The apical hood is prolonged into a bidentate apex. The apical hood exceeds the anther cap. There is a short column foot. The stelidia grow upwards from the base of the column and are equal to the column apex. The stelidia are shaped linear with obtuse apices.

 

Herbarium Specimens

 

Holotype

 

C

 

 

Other herbarium specimens

 

Royal Botanic Gardens, Kew (K)

 

Specimen 70873

 

Scent

 

I could find no record

 

Flowering Season

 

In northern hemisphere cultivation plants flower during spring.

 

Culture

 

This species is in limited cultivation in Europe and maybe in cultivation in Australia.

 

Similar Species

 

Dendrochilum flexuosum

 

Other Information

 

Henrik Pedersen wrote (2004) that morphologically this species seems closest to Dendrochilum flexuosum but differs by its longer and narrower leaves, linear-lanceolate, acute petals, longer labellum and stelidia that grow from the base of the column and are equal to the column apex.

 

Reference

 

PEDERSEN, Henrik. 2004, Three New Species of Dendrochilum, Blumea 49 351-360, Leiden, The Netherlands

 

World Checklist of Selected Plant Families. 25 August 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 25 August 2009.