Accepted name: Dendrochilum linearifolium Hook.f., Hooker's Icon. Pl. 19: t. 1850 (1889)

Subgenus – Platyclinis. Section – Platyclinis.


 
 
The text is below the photos
 

This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch
This photo was taken by Peter O'Byrne and is reproduced courtesy of Swiss Orchid Foundation at the Herbarium, Jany Renz. http://orchid.unibas.ch

 

 

Synonyms

 

Platyclinis linearifolium (Hook.f.) Ridl., J. Linn. Soc., Bot. 32: 231 (1896).

Acoridium linearifolium (Hook.f.) Rolfe, Orchid Rev. 12: 220 (1904).

Platyclinis pulchella Ridl., J. Fed. Malay States Mus. 6: 56 (1915).

 

Origin in the Wild

 

Peninsula Malaysia

Sumatra

 

Elevation in the Wild

 

Sumatra - 1520 metres

Peninsula Malaysia - 746-2,100 metres

 

Habitat in the Wild

 

In Sumatra C.E. Carr found it growing on the Merek-Sidikalang Road.

 

On Peninsula Malaysia this species has been collected in the Genting Highlands, Cameron Highlands, Gunung Ulu Kali, Gunung Tahan and Gunung Mengkuang in Pahang.

 

This species is widespread throughout the mountains of Peninsula Malaysia. This species grows on rocks in exposed positions (Wood 2001)

 

The Plants Description

 

The pseudobulbs are shaped ovoid and are spaced 5-8mm apart along the rhizome. The pseudobulbs measure c1.5cm long and 1cm in diameter. The pseudobulbs wrinkle with age. The leaves are petiolate. The leaf blades are shaped linear and have obtuse apices. The leaf blades measure 3.5-10cm long and 4-8mm wide.

 

The Inflorescence

 

The inflorescence is synanthous and appears as the pseudobulbs are developing. The rachis is nodding and measures 5-6cm long.

 

The Flowers

 

Between 8 and 12 flowers grow on an inflorescence. The flowers are yellowish with brown keels on the labellum and do not open widely. The sepals and petals are shaped lanceolate and have acute apices. The sepals and petals measure 6.0-8.5mm long. The labellum is 3-lobed. The side lobes look quadrangular and have triangular apices. The side lobes have undulate margins. The mid-lobe is shaped ovate. There are 2 keels that run from the base of the hypochile and finish 2/3 of the way along the mid-lobe. The column measures 3-4.5mm long and is curved. The apical hood has a rounded apex, its margins are erose. The stelidia grow from either the base or the middle of the column and terminate half way up the column. The stelidia are shaped linear and have acute apices.

 

Herbarium Specimens

 

Syntype

 

Royal Botanic Gardens, Kew (K)

 

I could not locate the specimen

 

 

Other herbarium specimens

 

National Herbarium Netherlands (L)

 

Specimen L0322546

Specimen L0322547

Specimen L0322548

Specimen L0322550

Specimen L0322551

 

Royal Botanical Gardens, Kew (K)

 

Specimen 29640.000

Specimen 23124.000

Specimen K000364709

 

Scent

 

I could find no record

 

Flowering Season

 

On Peninsula Malaysia this species has been collected in flower during February, March, April, May and June.

 

Culture

 

This species is in cultivation but hard to find.

 

Similar Species

 

Dendrochilum tenompokense

Dendrochilum basale (see this page for the differences)

 

Other Information

 

Jim Comber wrote that the plants can be epiphytic but are more commonly found as lithophytes.

 

Jeffrey Wood wrote that there is variability in the labellum shape and the position on the column that the stelidia grow from. Wood also wrote that reports of plants on Borneo probably represent Dendrochilum galbanum and Dendrochilum tenompokense.

 

Reference -

 

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

 

WOOD, Jeffrey. Dendrochilum of Borneo, 2001. Natural History Publications (Borneo), Malaysia.

 

World Checklist of Selected Plant Families. 09 January 2009. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 09 January 2009.