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Cyperaceae taxon details

Carex omeiensis Tang

1676647  (urn:lsid:marinespecies.org:taxname:1676647)

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terrestrial
Tang, T. (1932). New species and new varieties of the Cyperaceae from Szechuzn. Bulletin of the Fan Memorial Institute of Biology, 3: 361-363.
page(s): 361 [details] 
Holotype  PE 24392, geounit China  
Holotype PE 24392, geounit China [details]
Description Rhizome rather long, ligneous, horizontal. Culms laxly tufted, 40-65 cm tall, triquetrous, smooth, scabrid nearly apex,...  
Description Rhizome rather long, ligneous, horizontal. Culms laxly tufted, 40-65 cm tall, triquetrous, smooth, scabrid nearly apex, clothed at base with dark brown and bladeless sheaths. Leaves slightly short, equaling or slightly longer than culm, blades 0.4-1.2 cm wide, flat, ± stiff, smooth on adaxial surface, scabrous on abaxial surface and margins; sheaths 5-10 cm, dark brown, membranous part of sheaths usually splitting to base. Involucral bracts sheathed, lower involucral bract blades leaflike or setaceous, usually shorter than spike, upper bracts bladeless, sheaths 5-7 mm, brownish, white hyaline on margins of mouth. Spikes numerous, 3-8 spikes fascicled in an involucral bract sheath; terminal spike male; remaining spikes female, densely arranged in a raceme near apex, cylindric, 10-20 mm, sparsely few to more than 10-flowered, thinly pedunculate. Female glumes brownish yellow, ovate, ca. 2 mm, membranous, 1-costate. Utricles reddish brown, suberect, longer than glume, elliptic, plano-convex, 2.5-3 mm, membranous, glabrous, 7-9-veined abaxially, base abruptly contracted into a short stipe, apex gradually narrowed into a short beak less than 1 mm, orifice emarginate. Nutlets yellowish brown, tightly enveloped, ovate-orbicular, plano-convex, ca. 1.5 mm, base estipitate; style persistent, base slightly thickened; stigmas 2. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Fan Mem. Inst. Biol. 3: 361. 1932 to Bull. Fan Mem. Inst. Biol....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Fan Mem. Inst. Biol. 3: 361. 1932 to Bull. Fan Mem. Inst. Biol. 3: 361 (1932), 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 omeiensis Tang. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1676647 on 2025-09-12
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
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Nomenclature

original description Tang, T. (1932). New species and new varieties of the Cyperaceae from Szechuzn. Bulletin of the Fan Memorial Institute of Biology, 3: 361-363.
page(s): 361 [details] 

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

Other

additional source Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Holotype PE 24392, geounit China [details]
From editor or global species database
Description Rhizome rather long, ligneous, horizontal. Culms laxly tufted, 40-65 cm tall, triquetrous, smooth, scabrid nearly apex, clothed at base with dark brown and bladeless sheaths. Leaves slightly short, equaling or slightly longer than culm, blades 0.4-1.2 cm wide, flat, ± stiff, smooth on adaxial surface, scabrous on abaxial surface and margins; sheaths 5-10 cm, dark brown, membranous part of sheaths usually splitting to base. Involucral bracts sheathed, lower involucral bract blades leaflike or setaceous, usually shorter than spike, upper bracts bladeless, sheaths 5-7 mm, brownish, white hyaline on margins of mouth. Spikes numerous, 3-8 spikes fascicled in an involucral bract sheath; terminal spike male; remaining spikes female, densely arranged in a raceme near apex, cylindric, 10-20 mm, sparsely few to more than 10-flowered, thinly pedunculate. Female glumes brownish yellow, ovate, ca. 2 mm, membranous, 1-costate. Utricles reddish brown, suberect, longer than glume, elliptic, plano-convex, 2.5-3 mm, membranous, glabrous, 7-9-veined abaxially, base abruptly contracted into a short stipe, apex gradually narrowed into a short beak less than 1 mm, orifice emarginate. Nutlets yellowish brown, tightly enveloped, ovate-orbicular, plano-convex, ca. 1.5 mm, base estipitate; style persistent, base slightly thickened; stigmas 2. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Fan Mem. Inst. Biol. 3: 361. 1932 to Bull. Fan Mem. Inst. Biol. 3: 361 (1932), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]