Accepted name: Dendrochilum malindangense Ames, Orchidaceae 2: 114 (1908)

Subgenus – Platyclinis. Section – Platyclinis.


 
 

Synonyms

 

None

 

Origin in the Wild

 

Mindanao

 

Elevation in the Wild

 

1130 metres

 

Habitat in the Wild

 

This species has been collected on Mount Malindang in Mindanao's Misamis Province.

 

The Plants Description

 

The pseudobulbs cluster on a short rhizome and are shaped fusiform. The pseudobulbs measure 3.1-4.6cm long and 0.4-0.5cm in diameter. The pseudobulbs are covered with c5 cataphylls when they are growing; the cataphylls disintegrate into persistent fibres as the pseudobulbs mature. The leaves are petiolate; the petiole measures 4.1-6.2cm long. The leaf blades are shaped narrowly oblanceolate and have obtuse to slightly retuse apices. The leaf blades measure 21.8-23.5cm long and 2.4-3.0cm wide. The leaves are thin-textured and have seven distinct nerves.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle is suberect and measures 18.0-23.0cm long. The rachis is nodding to probably pendent and measures 16.9-18.2cm long. The flowers alternate distichously and are spaced 3.0-4.0mm apart. The flowers open from the proximal section of the rachis.

 

The Flowers

 

The flowers are whitish yellow (Pedersen 1997) or pale green (Kew 74183). The sepals and petals spread widely and have a few minute trichomes on their proximal parts. The dorsal sepal is shaped narrowly linear-lanceolate and has an acuminate apex. The dorsal sepal measures 7.8-8.0mm long and 2.1-2.3mm wide. The dorsal sepal is three veined and has a quite entire margin. The lateral sepals are shaped narrowly linear-lanceolate and have acuminate apices. The lateral sepals measure 8.2-8.5mm long and 2.2-2.3mm wide. The lateral sepals are three veined and have quite entire margins. The petals are shaped linear-lanceolate and have acuminate apices. The petals measure 6.9-7.0mm long and c2.4mm wide. The petals are three veined and have finely erose margins. The labellum is easily versatile, pendent and entire. The labellum measures 5.0-5.2mm long and 2.3-2.4mm wide. The labellum is three veined and has a finely erose margin. The labellum is shaped oblong and has an obtuse to somewhat acuminate apex. There are two keels that interconnect at the base of the labellum and terminate 2/3 of the way along its length. The column is suberect, strongly incurved and measures 2.9-3.1mm long. The apical wing is prolonged into a rounded to slightly retuse apex and has a quite entire margin. The apical wing distinctly exceeds the anther cap. The column foot is short. The stelidia grow upwards from the base of the column and are slightly shorter than the column apex, the stelidia reach the anther cap. The stelidia incurve gradually and are shaped linear with obtuse apices.

 

Herbarium Specimens

 

Holotype

 

AMES

Specimen 36 (photo)

 

Isotype

 

US

 

New York Botanical Garden (NY)

 

Specimen 39529 (photo)

 

Other herbarium Specimens

 

Royal Botanic Gardens, Kew (K)

 

Specimen 74183.000

 

Scent

 

I could find no record.

 

Flowering Season

 

Flowering plants have been collected in the wild during May.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum flexuosum (see this page for the differences)

Dendrochilum spathaceum

 

Other Information

 

Ames described this species as abundant above 3700ft on Mount Malindang on Mindanao (Ames 1908).

 

Ames wrote (Ames 1908) that this species superficially resembles Dendrochilum glumaceum but without side lobes on the labellum. Ames thought that this species was closest to Dendrochilum spathaceum from Java.

 

Henrik Pedersen wrote that this species is close to Dendrochilum flexuosum.

 

Reference -

 

AMES, Oakes. 1908, Illustrations and studies of the Family Orchidaceae Facsimile 2, Ames Botanical Laboratory, North Easton, Massachusetts, Boston.

 

PEDERSEN, Henrik. 1997, The Genus Dendrochilum (Orchidaceae) in the Philippines - A Taxonomic Revision. Opera Botanica, Denmark

 

World Checklist of Selected Plant Families. 17 January 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 17 January 2009.