Calamus acanthospathus Griff.

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-3893-FC8AFD29FA34
treatment provided by	Marcus
scientific name	Calamus acanthospathus Griff.
status

Treatment

Calamus acanthospathus Griff. View in CoL

Figure 2B, C

Diagnostic characters. Stems solitary, 10 m long; stems with leaf sheath 2 cm in diameter; spines linear, triangu- lar 0.3–1 cm long. Knee 3 cm long, green, armed by ca 2 mm long spines; ocrea ca 5–6 mm long, spiny. Leaf 1 m long, ecirriate; petiole with single or paired spines ca 1 cm; leaflets regular, 8–13 per side, alternate, lanceo- late to ensiform, 30 cm long, acuminate, terminally free, veins 7 in numbers, vestigial cirri ca 2 mm. Flagella 2.5 m long, grapnel spines ca 6 mm long.

Distribution. Dima Hasao district; in dense forest.

Uses. Domestic uses (cane).

Material examined. INDIA • Assam, Khasi & Jaintia Hills, Jowai ; alt. 4500 feet; 6 Jan. 1916; Upendranath Kan- jilal leg.; ASSAM 30954, CAL 493911 About CAL . • Assam, Dima Hasao, Jatinga ; 25°06′24.2″N, 093°02′55.8″E; alt. 1203 m; 14 Nov. 2019; S Mehmud leg. GoogleMaps ; CH, ASSAM 96216 About ASSAM .