Calamus flagellum Griff. ex Mart.

Mehmud, Selim & Roy, Himu, 2021, Diversity and distribution of palms (Arecaceae) in Assam, India, Check List 17 (1), pp. 69-93 : 74

publication ID	https://doi.org/ 10.15560/17.1.69
persistent identifier	https://treatment.plazi.org/id/284487AF-FFAF-FF9B-3B11-FDADFB5EF989
treatment provided by	Marcus
scientific name	Calamus flagellum Griff. ex Mart.
status

Treatment

Calamus flagellum Griff. ex Mart. View in CoL

Figure 2F, G

Diagnostic characters. Stems clustered, climbing, ca 12 m long, ca 2.5 cm in diameter. Leaf sheath with brown or grey indumentums; spines linear 4.5–5 cm; flagella ca 4.5 m long. Knee 6 cm long; ocrea spiny, 2–3 cm long. Leaf ecirriate, 2.5–3 m long; leaflets regular, 25–33 per side, opposite to alternate, linear, serrated, acuminate, 66–74 cm long and ca 3.5 cm wide, veins 3 in number, terminal leaflets connate. Inflorescences ca 6 m long, fla- gella 1.5–2 m long; partial inflorescence 5–6 in num- ber, 40–70 cm long; rachillae 10–40 cm long; pistillate rachillae with dyad flowers. Fruits ellipsoid, 2.5–2.8 cm long, scales in 12 vertical rows, greenish yellow.

Flowering and fruiting. October to March and February to March, respectively.

Distribution. Common; near streams.

Vernacular names. Raidang(Assamese); Rai(Dimasha).

Uses. Furniture and other house hold products (cane), food (apical stem).

Material examined. INDIA • Arunachal Pradesh, Dibang Valley, near Jambupani way to Deshali from Hunli ; alt. 700 m; 25 Feb. 2004; M. Bhaumik leg.; AS- SAM 64981, 64982 View Materials . • Assam, Nizamghat ; alt. 450 ft; 05 Dec. 1913; Upendranath Kanjila leg.; ASSAM 30917 . • 1 ♂; Assam, Cachar, Dwarband ; 24°32′25″N, 092° 44′37″E; alt. 12 m; 19 Nov. 2018; S. Mehmud leg.; CH, ASSAM 96218 About ASSAM GoogleMaps . • 1 ♀; Assam, Tinsukia, Margherita ; 27° 14′22.8″N, 095°35′02.7″E; alt. 113 m; 16 Feb. 2019; S. Mehmud leg.; CH, ASSAM 96219 About ASSAM GoogleMaps .