Cyperaceae taxon details
Mapania unimasiana Shabdin, Meekiong & Miraadila
1678572 (urn:lsid:marinespecies.org:taxname:1678572)
accepted
Species
terrestrial
Miraadila, M. I.; Shabdin, Z.; Meekiong, K. (2016). The genus <i>Mapania</i> Aublet (Mapanioideae, Cyperaceae): nine new taxa from Sarawak, Malaysia. <em>Folia Malaysiana.</em> 17(2): 1-28.
page(s): 18 [details] Available for editors
[request]
page(s): 18 [details] Available for editors
[request]
Holotype SAR, geounit Sarawak
Holotype SAR, geounit Sarawak [details]
Description Moderately robust, rhizomatous herbs; rhizomes 2-5 mm diameter. Culms solitary or in clump, erect, central, triquetrous,...
Etymology Named after UNIMAS, Universiti Malaysia Sarawak
Description Moderately robust, rhizomatous herbs; rhizomes 2-5 mm diameter. Culms solitary or in clump, erect, central, triquetrous, glabrous, light green. Leaves basal, up to 185 cm long; leaf blade linear, 145-170 x 4.5-5 cm, apex abruptly narrowed, cuspidate, broadly obtuse to rounded, base gradually narrowed into pseudopetiole, coriaceous, light to medium green or yellowish green, 3-nerved, secondary nerves distinct, flat in cross-section, margin entire to seabrid near apex; pseudopetiole 30-38 x 2-2.3 cm. Inflorescence sessile, composed of 3-7 spikes, the spikes often remaining obscured by involucral bracts at maturity, spikes 4-4.2 x 2-2.5 cm, greenish yellow, pistillate flowers numerous per spike (20-30) enclosing staminate flowers located in the centre in separate spicoids. Involucral bracts 7-9 or more, ovate to lanceolate, 2.7-3 x 1.3-2.2 cm, coriaceous, margin wrinkled with thin light brown layer, light to medium green or yellowish green. *Spicoid 7-9 per spike, 6-8 consist of pistillate flowers, only 1 with staminate flowers*. Spicoid bracts lanceolate, 3-3.2 x 1.2-2 cm, coriaceous, greenish yellow, apex acute, light brown green, glabrous; floral bracts linear, 3.5-3.7 cm long, membranous, transparent whitish with light brown at apex, inner floral bract 4, free, 6-6.2 x 3-3.2 mm, membranous, whitish with light brown at apex. Each spicoid consists of 4-6 anthers, anther linear, 3.5-3.6 mm long, whitish, filament up to 2 mm long. Each spicoid consists of 3-4 stigmas, stigma branches 2 or 3 (rarely 4), 5-6.5 mm long, whitish. Fruit ellipsoid, 8-8.5 mm long, 3-3.3 mm wide, surface with tubercles, apex acute, black. [details]
Etymology Named after UNIMAS, Universiti Malaysia Sarawak
Etymology Named after UNIMAS, Universiti Malaysia Sarawak [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Mapania unimasiana Shabdin, Meekiong & Miraadila. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678572 on 2025-09-12
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Nomenclature
Present Inaccurate Introduced: alien Containing type locality
Holotype SAR, geounit Sarawak [details]
Isotype HUMS, geounit Sarawak [details]
Isotype SAN, geounit Sarawak [details]
From editor or global species database
Description Moderately robust, rhizomatous herbs; rhizomes 2-5 mm diameter. Culms solitary or in clump, erect, central, triquetrous, glabrous, light green. Leaves basal, up to 185 cm long; leaf blade linear, 145-170 x 4.5-5 cm, apex abruptly narrowed, cuspidate, broadly obtuse to rounded, base gradually narrowed into pseudopetiole, coriaceous, light to medium green or yellowish green, 3-nerved, secondary nerves distinct, flat in cross-section, margin entire to seabrid near apex; pseudopetiole 30-38 x 2-2.3 cm. Inflorescence sessile, composed of 3-7 spikes, the spikes often remaining obscured by involucral bracts at maturity, spikes 4-4.2 x 2-2.5 cm, greenish yellow, pistillate flowers numerous per spike (20-30) enclosing staminate flowers located in the centre in separate spicoids. Involucral bracts 7-9 or more, ovate to lanceolate, 2.7-3 x 1.3-2.2 cm, coriaceous, margin wrinkled with thin light brown layer, light to medium green or yellowish green. *Spicoid 7-9 per spike, 6-8 consist of pistillate flowers, only 1 with staminate flowers*. Spicoid bracts lanceolate, 3-3.2 x 1.2-2 cm, coriaceous, greenish yellow, apex acute, light brown green, glabrous; floral bracts linear, 3.5-3.7 cm long, membranous, transparent whitish with light brown at apex, inner floral bract 4, free, 6-6.2 x 3-3.2 mm, membranous, whitish with light brown at apex. Each spicoid consists of 4-6 anthers, anther linear, 3.5-3.6 mm long, whitish, filament up to 2 mm long. Each spicoid consists of 3-4 stigmas, stigma branches 2 or 3 (rarely 4), 5-6.5 mm long, whitish. Fruit ellipsoid, 8-8.5 mm long, 3-3.3 mm wide, surface with tubercles, apex acute, black. [details]Diagnosis Unique among all Mapania species by having central staminate flowers (4-6) that are enclosed by numerous pistillate flowers (20-30). [details]
Etymology Named after UNIMAS, Universiti Malaysia Sarawak [details]
To International Plant Names Index (IPNI)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Mapania unimasiana K001392923 isotype 1)
To Plants of the World Online
To Royal Botanic Gardens, Kew (Mapania unimasiana K001392923 isotype 1)
From editor or global species database
Hosted externally
