Calamus nambariensis Becc.

Mehmud, Selim & Roy, Himu, 2021, Diversity and distribution of palms (Arecaceae) in Assam, India, Check List 17 (1), pp. 69-93 : 80

publication ID	https://doi.org/ 10.15560/17.1.69
persistent identifier	https://treatment.plazi.org/id/284487AF-FFA1-FF95-3893-FBA2FA91FF49
treatment provided by	Marcus
scientific name	Calamus nambariensis Becc.
status

Treatment

Calamus nambariensis Becc. View in CoL

Figure 6A

Diagnostic characters. Stems solitary or clustered (2 or 3 in number), ca 15 m long and with leaf sheath 3–4 cm in diameter; leaf sheath spines ca 2–3 cm long, pointing downwards. Flagella absent. Leaf pinnate, 2–3.5 m long, cirri ca 1.2 m long. Leaflets regular, lanceolate, alternate, 20–27 per side, ca 35 cm long and ca 2.5 cm wide, acute, serrated, and veins 3. Knees ca 6 cm long, spiny; ocrea inconspicuous, acute 1–2 mm long. Inflorescences same as Calamus inermis .

Calamus namabariensis has been considered to be a synonym of C. inermis ( Henderson 2020) View in CoL , but we recognize both the taxa as separate species by their differing number of vertical rows of fruit scales. In C. namabarien - sis there are 21 rows ( Beccari 1908; Basu 1992; Renuka and Sreekumar 2012; Deka et al. 2018), while in C. inermis View in CoL there are 18 rows ( Beccari 1908; Basu 1992; Renuka et. al. 2010).

Flowering. March to June.

Distribution. Jorhat and East Karbi Anglong districts; prefers dense forest.

Vernacular names. Hauka Bet (Assamese).

Uses. In furniture (cane).

Material examined. INDIA • Assam, Nambor Wildlife Sanctuary ; 20 Feb. 2016; Kishor Deka leg.; GUBH 18407 View Materials . • Assam, East Karbi Anglong, Langsoipee Gaon, Koilamati Area ; 26°21′21.2 ’’ N, 093°50 ’ 49.3 ’’ E; alt. 71 m GoogleMaps ;

20 Jun. 2019; S. Mehmud leg.; CH, ASSAM 96231.