Calamus polystachys

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Calamus (KAL-ah-muhs)
polystachys (pohl-ee-STAH-kees)
52246f003459c.jpg
Panti, Indonesia. Photo by Dr. John Dransfield, Royal Botanic Gardens, Kew/Palmweb.
Scientific Classification
Genus: Calamus (KAL-ah-muhs)
Species:
polystachys (pohl-ee-STAH-kees)
Synonyms
None set.
Native Continent
Asia
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Morphology
Habit: Clustering
Leaf type: Pinnate
Culture
Survivability index
Common names
None.

Habitat and Distribution

Pahang near Mentakab and Pulau Tioman. Sumatra, Borneo, Java.
Pelabuhan Ratu, Indonesia. Photo by Dr. John Dransfield, Royal Botanic Gardens, Kew/Palmweb.
Tropical Moist Forest.

Description

High climbing rattan clustering to form rather dense clumps or thickets. Stems without sheaths 1-2 cm in diameter, with sheaths to 3.5 cm. Internodes about 15 cm often much longer in juvenile stems. Sheaths with conspicuous knee; sheath bright green bearing numerous whorls or partial whorls of fine black horse-hair-like spines, the bases of which united to form green collars encircling the stem, some of the collars upward pointing, others reflexed, at least some collars interlocking in pairs to form galleries usually occupied by ants. Leaves to 2.5 m long with cirrus to 80 cms and petiole 6 cm only on mature stems, longer in juveniles. Leaflets about 60 on each side of the rachis bright green, regularly arranged, rather narrow about 30-40 cm long by 1 cm wide, bristly on both surfaces. Inflorescence emerging from mouth of leaf sheath, about 50 cm long, without terminal flagellum, with 7-8 partial inflorescences on each side of the axis, the partial inflorescences subtending sparsely spiny or inerm bracts each on subtending 3 flower-bearing branches; male and female flowers both small, distichous. Fruit at maturity ovate not exceeding 6-8 mm in diameter covered in 18 vertical rows of ivory-coloured scales; seed grooved and pitted. Seedling leaf with 4 leaflets. (J. Dransfield, A Manual of the rattans of the Malay Peninsula. Malayan Forest Records 29.. 1979)/Palmweb. Editing by edric.

Culture

Comments and Curiosities



External Links

References

Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

J. Dransfield, A Manual of the rattans of the Malay Peninsula. Malayan Forest Records 29.. 1979


Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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