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Cyperaceae taxon details

Carex hyalina Boott

1676448  (urn:lsid:marinespecies.org:taxname:1676448)

accepted
Species
terrestrial
Boott, F. M. B. (1847). Descriptions of six new North American Carices. <em>Boston Journal of Natural History.</em> 5: 112-116., available online at https://www.biodiversitylibrary.org/page/32267237#page/116/mode/1up
page(s): 112 [details] 
Holotype  K 000907797, geounit Texas  
Holotype K 000907797, geounit Texas [details]
Description Plants ± colonial; rhizomes short-creeping between patches. Culms 25–95 cm; vegetative culms numerous, conspicuous, with...  
Description Plants ± colonial; rhizomes short-creeping between patches. Culms 25–95 cm; vegetative culms numerous, conspicuous, with 15–35 leaves, 3-ranked. Leaves: sheaths with adaxial hyaline band, summits U-shaped, prolonged 0.4–1.6 mm beyond collar; distal ligules 2–3.5 mm; blades 4–7 per fertile culm, pleated, ± auriculate at collar, 9–20 cm × 1–2.7 mm. Inflorescences open or dense, light green to light brown, 1.3–4 cm × 8–12 mm; proximal internode 2–9 mm; 2d internode 2–5 mm; proximal bracts scalelike or with bristle tips to 3.7 cm. Spikes 2–4(–6), distant, distinct, clavate-ovoid, 6–18 × 6–12 mm, base attenuate on terminal spike, truncate on lateral spikes, apex rounded. Pistillate scales silvery white to pale brown, narrow green to brown midstripe, narrowly ovate, 2.3–3.8 mm, as long as and narrower than perigynia, apex obtuse to acute. Perigynia widely spreading, green to pale brown, conspicuously 5–10-veined abaxially, conspicuously 3–7-veined adaxially, elliptic to nearly orbiculate, plano-convex to biconvex, (4–)4.5–6.6 × 2.2–3.5 mm, 0.6 mm thick, sometimes finely papillose, margin flat, including wing 0.8–1.3 mm wide; beak white or pale brown at tip, flat, ciliate-serrulate, abaxial suture usually inconspicuous, distance from beak tip to achene 2–3 mm. Achenes narrowly oblong-lanceolate, 1.8–2.6 × 0.9–1.2 mm, 0.6 mm thick. 2n = 74. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Boston J. Nat. Hist. v. (1847) 112. to Boston J. Nat. Hist. 5: 112...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Boston J. Nat. Hist. v. (1847) 112. to Boston J. Nat. Hist. 5: 112 (1847), 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 hyalina Boott. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676448 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
changed

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Nomenclature

original description Boott, F. M. B. (1847). Descriptions of six new North American Carices. <em>Boston Journal of Natural History.</em> 5: 112-116., available online at https://www.biodiversitylibrary.org/page/32267237#page/116/mode/1up
page(s): 112 [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 
   

Holotype K 000907797, geounit Texas [details]
From editor or global species database
Description Plants ± colonial; rhizomes short-creeping between patches. Culms 25–95 cm; vegetative culms numerous, conspicuous, with 15–35 leaves, 3-ranked. Leaves: sheaths with adaxial hyaline band, summits U-shaped, prolonged 0.4–1.6 mm beyond collar; distal ligules 2–3.5 mm; blades 4–7 per fertile culm, pleated, ± auriculate at collar, 9–20 cm × 1–2.7 mm. Inflorescences open or dense, light green to light brown, 1.3–4 cm × 8–12 mm; proximal internode 2–9 mm; 2d internode 2–5 mm; proximal bracts scalelike or with bristle tips to 3.7 cm. Spikes 2–4(–6), distant, distinct, clavate-ovoid, 6–18 × 6–12 mm, base attenuate on terminal spike, truncate on lateral spikes, apex rounded. Pistillate scales silvery white to pale brown, narrow green to brown midstripe, narrowly ovate, 2.3–3.8 mm, as long as and narrower than perigynia, apex obtuse to acute. Perigynia widely spreading, green to pale brown, conspicuously 5–10-veined abaxially, conspicuously 3–7-veined adaxially, elliptic to nearly orbiculate, plano-convex to biconvex, (4–)4.5–6.6 × 2.2–3.5 mm, 0.6 mm thick, sometimes finely papillose, margin flat, including wing 0.8–1.3 mm wide; beak white or pale brown at tip, flat, ciliate-serrulate, abaxial suture usually inconspicuous, distance from beak tip to achene 2–3 mm. Achenes narrowly oblong-lanceolate, 1.8–2.6 × 0.9–1.2 mm, 0.6 mm thick. 2n = 74. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Boston J. Nat. Hist. v. (1847) 112. to Boston J. Nat. Hist. 5: 112 (1847), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]