Calamus flagellum

Species of palm

Calamus flagellum

Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Monocots
Clade:  | Commelinids
Order:  | Arecales
Family:  | Arecaceae
Genus:  | Calamus
Species:  |

C. flagellum

Binomial name
Calamus flagellum

Griff. ex Mart.[1]

Synonyms

List

* Palmijuncus polygamus (Roxb.) Kuntze
Palmijuncus flagellum (Griff. ex Mart.) Kuntze
Calamus polygamus Roxb.
Calamus karinensis (Becc.) S.J.Pei & S.Y.Chen
Calamus jenkinsianus Griff.
Calamus flagellum karinensis
Calamus flagellum furvifurfuraceus

Calamus flagellum is an Asian species of tropical forest rattan liana in the family Arecaceae, with a native range from Assam to southern China and Indo-China.[2][3] Its name in Vietnamese is mây song, while the Lepcha of Sikkim call it rim.[4]

## Description

[edit]

Calamus flagellum is a strong climber with stems in clusters forming The individual rattan stems form from a leafsheath up to 45 mm in diameter. Leaves are described as "ecirrate" (without a cirrus: extension of the rattan leaf tip armed with grappling hooks), produced from leafsheaths 6 - 7 m long. Petioles are about 10 mm in diameter, armed with whorls of 10 - 30 mm spines; the leaflets are equidistant, broadly ensiform, with a prominent single vein on upper side; middle leaflets are longer, up to 600 mm long.

Male and female inflorescences are 5 m or more long and armed with claws. The flagellum is attached here (this is a whiplike climbing organ bearing reflexed strong claws on the lower side). Partial inflorescences occur which are about 1 m long with 3-4 rachillae on each side. The primary closely sheathing bract is tubular and fibrous at upper end. The rachillae are 100-250 mm long, each bearing 10-30 flowers. Male flowers are 8 - 10 mm x 3 mm, curved on the outside. Female flowers are about 7 mm long, with an ovate, 3-toothed calyx and lanceolate petals, positioned remotely on the rachillae (which are 200-250 mm long, truncate and projected from the basal bract). The fruit are about 30 mm long, broadly ovoid with fruit scales deeply channelled in the middle.[2]

## References

[edit]

1. ^ Griffiths W ex Mart. (1853) In: Hist. Nat. Palm. 3: 333
2. ^ a b POWO: Calamus flagellum Griff. ex Walp. (retrieved 6 February 2021)
3. ^ Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A. (2014). Didžiulis V. (ed.). "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Retrieved 21 January 2018.
4. ^ Tamsang, K.P. (1980). The Lepcha-English Encyclopaedic Dictionary. Kalimpong: Mrs. Mayel Clymit Tamsang. p. 725.

Taxon identifiers

Calamus flagellum|

* Wikidata: Q11179702
* BOLD: 899335
* CoL: 5WV5V
* EoL: 1084332
* FNA: 200027025
* FoC: 200027025
* GBIF: 5294099
* iNaturalist: 364886
* IPNI: 665095-1
* NCBI: 1510047
* Open Tree of Life: 5759570
* Plant List: kew-29521
* POWO: urn:lsid:ipni.org:names:60459123-2
* Tropicos: 2402054
* WFO: wfo-0000755864