Diversity and distribution of palms (Arecaceae) in Assam, India Author Mehmud, Selim Author Roy, Himu text Check List 2021 2021-01-13 17 1 69 93 http://dx.doi.org/10.15560/17.1.69 journal article 10.15560/17.1.69 1809-127X Calamus flagellum Griff. ex Mart. 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 . • 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 . • 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 .