Accepted name: Dendrochilum eymae H.A.Pedersen, Nordic J. Bot. 15: 395 (1995 publ. 1996)

Subgenus – Platyclinis. Section – Eurybrachium.


 

 

Synonyms

 

None

 

Origin in the Wild

 

Sulawesi

 

Elevation in the Wild

 

This plant was collected on the summit of Gunung Lumut and that mountain is 2,403 meters high.

 

Habitat in the Wild

 

The holotype was collected from the summit of Gunung Lumut

 

The Plants Description

 

This is a small and tufted Dendrochilum. The roots grow from the rhizome and are sparsely branched. The pseudobulbs are clustered and spaced 4mm apart along the rhizome. The pseudobulbs are shaped ellipsoid to somewhat ovoid. The pseudobulbs measure 0.5-1cm long and 0.2-0.4cm in diameter. The pseudobulbs are covered by 3-4 cataphylls while they are growing. The cataphylls disintegrate into persistent fibres as the pseudobulbs mature. The leaf is petiolate, the petiole measures 0.4-0.9cm long. The leaf blades are shaped linear-lanceolate and have obtuse to acute apices. The leaf blades measure 1.8-3.8cm long and 0.4-0.6cm wide. The leaves have three distinct nerves and entire margins.

 

The Inflorescence

 

The inflorescence is synanthous. The peduncle is suberect or curved and measures 3.4-6.9cm long. The rachis is nodding and measures 2.6-3.3cm long. The flowers alternate distichously and are spaced approximately 1mm apart. The axis of the rachis is twisted so the flowers appear to have a cylindrical rachis. There are 1-2 non floriferous bracts at the base of the rachis. The flowers open from the distal section of the rachis.

 

The Flowers

 

The flowers are a brick-red colour. The sepals and petals spread widely and have scattered ocelli. The dorsal sepal is shaped oblong-elliptic and has a rounded-obtuse apex. The dorsal sepal measures 2.3-2.4mm long and 1.2-1.3mm wide. The dorsal sepal is one veined and has an entire margin. The lateral sepals are shaped obliquely ovate and have obtuse apices. The lateral sepals measure 2.3-2.4mm long and 1.2-1.4mm wide. The lateral sepals are one veined and have entire margins. The petals are shaped obliquely ovate and have rounded apices. The petals measure 1.6-1.7mm long and 1.3-1.4mm wide. The petals are one veined and have entire margins. The labellum is firmly attached to the column, is porrect and somewhat recurved. The labellum is 3-lobed, 3-veined and glabrous. The labellum measures 1.6-1.9mm long and 1.4-1.7mm wide. The margins are entire. The side lobes spread and are rounded. The side lobes are shorter than the mid-lobe. The mid lobe is shaped transversely elliptic to nearly orbicular and has a rounded apex. The column is suberect, straight, and measures 1.4-1.7mm long. The apical hood has an entire margin and is rounded; the apical hood exceeds the anther cap. The stelidia grow from the middle of the column and are shorter than the column apex. The stelidia are suberect and are shaped falcately triangular to somewhat trulliform.

 

Herbarium Specimens

 

Holotype

 

National Herbarium Netherlands, Leiden (L)

 

Specimen L0058440 (photo)

 

Scent

 

I could find no record.

 

Flowering Season

 

The holotype was collected in flower during September.

 

Culture

 

I do not think this species is in cultivation

 

Similar Species

 

Dendrochilum ambangense

Dendrochilum apoense

 

Additional Comments

 

Henrik Pedersen wrote that this species is similar to Dendrochilum apoense from Mindanao but differs from its entire petals, 3-lobed labellum and entire margins on the labellum. Pedersen also wrote that this species is also similar to Dendrochilum ambangense from Sulawesi but differs by its rounded side lobes and the stelidia that grow from the middle of the column.

 

The epithet is named after P.J Eyma who collected the type.

 

Reference -

 

PEDERSEN, Henrik. 1995, Thirteen new species of Dendrochilum (Orchidaceae), a new record from Burma, and a checklist of the genus in East Malesia. Nord. J. Bot 15:381-402. Copenhagen, Denmark.

 

World Checklist of Selected Plant Families. 22 September 2008. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/ accessed 22 September 2008.