Calamus gracilis Roxb.

Mehmud, Selim & Roy, Himu, 2021, Diversity and distribution of palms (Arecaceae) in Assam, India, Check List 17 (1), pp. 69-93 : 76

publication ID	https://doi.org/ 10.15560/17.1.69
persistent identifier	https://treatment.plazi.org/id/284487AF-FFAD-FF99-3893-FC1AFDE0F859
treatment provided by	Marcus
scientific name	Calamus gracilis Roxb.
status

Treatment

Calamus gracilis Roxb. View in CoL

Figure 3C, D

Diagnostic characters. Stems clustered, climbing, 7–10 m long, with leaf sheath 2–2.3 cm in diameter; indu- mentums brown; spines triangular, upward pointing, ca 2 mm long; flagella 2.2– 3 m long. Knee ca 2 cm long, wrinkled, spiny; ocrea ca 5 mm long, unarmed. Leaf ecirriate, 30–52 cm long; petiole 0.8–1.2 cm long. Leaf- lets grouped, opposite, 16–18 per side, ca 26 cm long and ca 3 cm wide, lanceolate to ensiform, serrated, acuminate, tip bent and facing downward, terminally paired, veins 3. Staminate inflorescence ca 90 cm long, flagella ca 6–9 cm long; rachillae alternate, flowers globose. Pis- tillate inflorescence ca 1 m long; partial inflorescence 13–17 cm long; rachillae 3–5 cm long. Fruits ellipsoid, ca 2.5 cm long, orange-red, scales in 20 vertical rows.

Flowering and fruiting. May.

Distribution. Cachar and Dima Hasao districts; prefer hilly areas.

Vernacular names. Suli Bet (Assamese).

Uses. Binding material for preparation of traditional trays locally known as “dola” and “saloni” (cane).

Material examined. INDIA • Assam, Sibsagar, Kalioni; alt. 340ft; Upendranath Kanjilal leg.; ASSAM 30961, ASSAM 40720 . • Assam, Cachar, Daulashal; 24°26′09.4″N, 092°50′35.6″E; alt. 40 m; 26 Mar. 2019; S. Mehmud leg.; CH GoogleMaps . • Assam, Dima Hasao, Jatinga; 25°07′56″N, 093°01′17.8″E; alt. 671m; 12 Nov. 2019; S. Mehmud leg.; CH, ASSAM 96222 About ASSAM GoogleMaps .