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Cyperaceae taxon details

Carex greenwayi Nelmes

1677834  (urn:lsid:marinespecies.org:taxname:1677834)

accepted
Species
terrestrial
Nelmes, E. (1938). Notes on Carex. IV. The section Elatae in Tropical Africa. <em>Bulletin of Miscellaneous Information (Royal Gardens, Kew).</em> 1938(6): 242-248., available online at https://www.jstor.org/stable/4113469
page(s): 244 [details] 
Lectotype  BR 8639721, geounit Tanzania  
Lectotype BR 8639721, geounit Tanzania [details]
Altitude 1900-3050 m  
Altitude 1900-3050 m [details]

Description Rhizome caespitose, with short internodes. Stems (66)127-153 cm, very stout, trigonous, smooth, green to yellowish-green,...  
Description Rhizome caespitose, with short internodes. Stems (66)127-153 cm, very stout, trigonous, smooth, green to yellowish-green, but densely dark purplish-red spotted or tinted towards the base. Leaves 44-98 cm × 8-14 mm, plicate, slightly scabrid on the edges and apical parts; sheaths dark purplish; ligule 2.5-5 mm, obtuse; anteligule edge concave. Inflorescence 32-64 cm, lowest internode 8-25 cm and second one 8-17 cm. Lowest bract 36-56 cm × 6-9.5 mm, shorter than inflorescence, exceptionally longer; sheath 6-8.5 cm long, the inner side purplish. Spikes 9-24, homomorphic to sub-homomorphic, androgynous, bearing only a few male flowers at the top of the spikes; terminal spike 3.5-11.4 cm × 4-8 mm, terete, peduncle up to 2 cm; lateral spikes, 2-11 cm × 5-8 mm, subdense to dense-flowered, terete, arising in pairs (sometimes in groups of three), at least some of them with a few short branches at the base, peduncle up to 7.5 cm. Male glumes 4-6.5 × 0.9-1.7 mm, oblong-lanceolate, reddish-brown with green midrib, mucronate or acuminate, mucro or acumen up to 0.6 mm, or, more rarely, obtuse. Female glumes 3.5-5.5 × 0.8-2 mm, oblong-lanceolate, reddish-brown to purplish-red, with green or straw coloured midrib, acuminate to aristate, acumen or arista up to 1.7 mm. Utricles 4-5.5 × 1-1.5 mm, elliptic to lanceolate in outline, straight, plurinerved, tapered to beak, from greyish-green with reddish or purplish speckles to entirely purplish coloured; beak 1.1-1.5 mm, ± bifid, with ventral sinus usually deeper than the dorsal one, the latter 0.2-0.4 mm depth, smooth. Achenes 2.2-2.6 × 0.9-1.2 mm, trigonous, oblong-ellipsoid. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Misc. Inform. Kew 1938(6): 244. [15 Aug 1938] to Bull. Misc....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Misc. Inform. Kew 1938(6): 244. [15 Aug 1938] to Bull. Misc. Inform. Kew 1938: 244 (1938), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex greenwayi Nelmes. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677834 on 2025-04-01
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-03-11 11:19:03Z
changed

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Nomenclature

original description Nelmes, E. (1938). Notes on Carex. IV. The section Elatae in Tropical Africa. <em>Bulletin of Miscellaneous Information (Royal Gardens, Kew).</em> 1938(6): 242-248., available online at https://www.jstor.org/stable/4113469
page(s): 244 [details] 

basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details] 

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Isolectotype K 363447, geounit Tanzania [details]
Lectotype BR 8639721, geounit Tanzania [details]
From editor or global species database
Altitude 1900-3050 m [details]

Description Rhizome caespitose, with short internodes. Stems (66)127-153 cm, very stout, trigonous, smooth, green to yellowish-green, but densely dark purplish-red spotted or tinted towards the base. Leaves 44-98 cm × 8-14 mm, plicate, slightly scabrid on the edges and apical parts; sheaths dark purplish; ligule 2.5-5 mm, obtuse; anteligule edge concave. Inflorescence 32-64 cm, lowest internode 8-25 cm and second one 8-17 cm. Lowest bract 36-56 cm × 6-9.5 mm, shorter than inflorescence, exceptionally longer; sheath 6-8.5 cm long, the inner side purplish. Spikes 9-24, homomorphic to sub-homomorphic, androgynous, bearing only a few male flowers at the top of the spikes; terminal spike 3.5-11.4 cm × 4-8 mm, terete, peduncle up to 2 cm; lateral spikes, 2-11 cm × 5-8 mm, subdense to dense-flowered, terete, arising in pairs (sometimes in groups of three), at least some of them with a few short branches at the base, peduncle up to 7.5 cm. Male glumes 4-6.5 × 0.9-1.7 mm, oblong-lanceolate, reddish-brown with green midrib, mucronate or acuminate, mucro or acumen up to 0.6 mm, or, more rarely, obtuse. Female glumes 3.5-5.5 × 0.8-2 mm, oblong-lanceolate, reddish-brown to purplish-red, with green or straw coloured midrib, acuminate to aristate, acumen or arista up to 1.7 mm. Utricles 4-5.5 × 1-1.5 mm, elliptic to lanceolate in outline, straight, plurinerved, tapered to beak, from greyish-green with reddish or purplish speckles to entirely purplish coloured; beak 1.1-1.5 mm, ± bifid, with ventral sinus usually deeper than the dorsal one, the latter 0.2-0.4 mm depth, smooth. Achenes 2.2-2.6 × 0.9-1.2 mm, trigonous, oblong-ellipsoid. [details]

Habitat Wet and open or shady places (forest, swamp, river bank) [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Misc. Inform. Kew 1938(6): 244. [15 Aug 1938] to Bull. Misc. Inform. Kew 1938: 244 (1938), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]

Type specimen The isolectotype appears with the synonym name: Carex vallis-rosetto in Kew Royal Botanic Garden data portal [details]
    Definitions

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