Thrixspermum trichoglottis

Thrixspermum trichoglottis is a monopodial orchid in the subfamily Epidendroideae. It is widespread across the eastern Himalayas, Yunnan, Indochina, the Andaman & Nicobar Islands, Malaysia and western Indonesia.[1][2][3][4][5]

Thrixspermum trichoglottis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Genus: Thrixspermum
Species:
T. trichoglottis
Binomial name
Thrixspermum trichoglottis
(Hook.f.) Kuntze
Synonyms[1]
  • Sarcochilus trichoglottis Hook.f.
  • Dendrocolla trichoglottis (Hook.f.) Ridl.
  • Dendrocolla alba Ridl.
  • Thrixspermum album (Ridl.) Schltr.

Description
Flower

Morphologies that have been observed in Pasoh Forest Reserve, Malaysia:

  • pseudobulb absent
  • monopodial
  • leaf equally bi-lobulate (young leaves somehow unequal)
  • leaves 15 mm x 65 mm, thin and fleshy
  • stem sheathed with internode, 1 cm
  • stem mildly branched
  • rooting throughout, rhizome heavily branched
  • inflorescence 1-2 flowers, with a long bract about 10 cm long, scale like
  • lateral sepal unevenly rhomboid, 4 x 7 mm
  • dorsal sepal elliptic, 2 x 6 mm
  • lip 7 x 6 mm with only one lobe
  • pubescent at both face of the lobe, with fleshy acute tip
  • yellow-orange spots on the outer surfaces near the lip tip
  • column small, 3 x 4 mm
  • color dimmer than petals and sepals
  • pollinia white

References
  1. Kew World Checklist of Selected Plant Families
  2. Flora od China v 25 p 469, 同色白点兰 tong se bai dian lan, Thrixspermum trichoglottis (J. D. Hooker) Kuntze, Revis. Gen. Pl. 2: 682. 1891.
  3. Huda, M.K. (2007). An updated enumeration of the family Orchidaceae from Bangladesh. The Journal of the Orchid Society of India 21: 35-49.
  4. Wood, J.J., Beaman, T.E., Lamb, A., Lun, C.C. & Beaman, J.H. (2011). The Orchids of Mount Kinabalu 2: 1-726. Natural history publications (Borneo), Kota Kinabalu, Malaysia.
  5. Nordin, F.A. & al. (2012). Notes on new records of Orchidaceae at Fraser's Hill, Pahang, Malaysia. Folia Malaysiana 13: 53-80.
  • Seidenfaden, G. and Wood, J.J. (1992). The Orchids of Peninsular Malaysia and Singapore. ISBN 87-85215-24-4
  • Media related to Thrixspermum trichoglottis at Wikimedia Commons


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