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Cyperaceae taxon details

Carex paeninsulae Naczi, E.L.Bridges & Orzell

1677875  (urn:lsid:marinespecies.org:taxname:1677875)

accepted
Species
terrestrial
Naczi R. F. C.; Bryson C. T.; Cochrane T. S. (2002). Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon, 12(4): 508-532., available online at https://www.biodiversitylibrary.org/page/643091#page/509/mode/1up
page(s): 514 [details] 
Description Plants loosely cespitose; rhizome internodes 7–58 mm, 1.2–2.2 mm thick. Culms purple-red to 4.8–11.4 cm at base,...  
Description Plants loosely cespitose; rhizome internodes 7–58 mm, 1.2–2.2 mm thick. Culms purple-red to 4.8–11.4 cm at base, 8.9–39 cm; vegetative shoots 33–59 cm, 1.4–2.2 times as tall as culms. Leaves: green, widest blades 3–4.6 mm wide. Inflorescences 8.1–29 cm, 0.73–0.95 of culm height; internode between proximalmost scales in proximalmost spike 2.4–3.5 mm; internode between distal lateral spikes 0.4–7.4(–9.8) cm, longest internode between distal lateral spikes 0.9–7.4(–9.8) cm; peduncle of terminal spike 0.3–3.2(–6.8) cm, longest peduncle per plant 0.87–3.2(–6.8) cm; proximal bract sheaths tight, hyaline band of adaxial face of sheath with apex truncate or concave; ligules 4–4.9(–9.6) mm; blades uniformly green, bract blade of distalmost lateral spike exceeding terminal spike, longest bract blade of distalmost lateral spike 3.2–9.5 cm. Spikes 4–6, distalmost 2–3 spikes overlapping or, rarely, all spikes separate; lateral spikes pistillate, with 2–12 perigynia, longest spike per plant with (5–)7–12, 7–20 × 3.5–4.8 mm, ratio of longest lateral spike length (in mm) to flower number = 1.8–2.5; terminal spike 14–38 × 1.2–2.1 mm, longest per plant 17–38 mm, exceeding distalmost lateral spike Pistillate scales 2.5–4.2 × 1.4–2.2 mm, body 1.5–2.4 mm, midrib prolonged as awn 0.4–2.4 mm. Staminate scales 3.9–4.8 × 1.2–1.8 mm, apex acute, awn 0–2.2 mm. Perigynia distichously imbricate, prominently 49–66-veined, slightly inflated, narrowly obovate in outline, obtusely trigonous in cross section, 4.1–4.7 × 1.4–1.6, 2.7–3.1 times as long as wide, 1.8–1.9 times as long as achene bodies, base gradually tapered, apex gradually tapered; beak absent or straight, 0–0.4 mm, 0–0.1 of perigynium length. Achenes 2.9–3.4 × 1.3–1.4 mm, tightly enveloped by perigynia, base abruptly contracted, apex abruptly contracted; stipe 0.5–0.6 mm; body 2.2–2.6 mm; beak straight, 0.1–0.3 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 514 2002 to Novon 12: 514 (2002), information provided by...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 514 2002 to Novon 12: 514 (2002), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex paeninsulae Naczi, E.L.Bridges & Orzell. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677875 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 Naczi R. F. C.; Bryson C. T.; Cochrane T. S. (2002). Seven new species and one new combination in Carex (Cyperaceae) from North America. Novon, 12(4): 508-532., available online at https://www.biodiversitylibrary.org/page/643091#page/509/mode/1up
page(s): 514 [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 
   

Isotype NY 00622235, geounit Florida [details]
From editor or global species database
Description Plants loosely cespitose; rhizome internodes 7–58 mm, 1.2–2.2 mm thick. Culms purple-red to 4.8–11.4 cm at base, 8.9–39 cm; vegetative shoots 33–59 cm, 1.4–2.2 times as tall as culms. Leaves: green, widest blades 3–4.6 mm wide. Inflorescences 8.1–29 cm, 0.73–0.95 of culm height; internode between proximalmost scales in proximalmost spike 2.4–3.5 mm; internode between distal lateral spikes 0.4–7.4(–9.8) cm, longest internode between distal lateral spikes 0.9–7.4(–9.8) cm; peduncle of terminal spike 0.3–3.2(–6.8) cm, longest peduncle per plant 0.87–3.2(–6.8) cm; proximal bract sheaths tight, hyaline band of adaxial face of sheath with apex truncate or concave; ligules 4–4.9(–9.6) mm; blades uniformly green, bract blade of distalmost lateral spike exceeding terminal spike, longest bract blade of distalmost lateral spike 3.2–9.5 cm. Spikes 4–6, distalmost 2–3 spikes overlapping or, rarely, all spikes separate; lateral spikes pistillate, with 2–12 perigynia, longest spike per plant with (5–)7–12, 7–20 × 3.5–4.8 mm, ratio of longest lateral spike length (in mm) to flower number = 1.8–2.5; terminal spike 14–38 × 1.2–2.1 mm, longest per plant 17–38 mm, exceeding distalmost lateral spike Pistillate scales 2.5–4.2 × 1.4–2.2 mm, body 1.5–2.4 mm, midrib prolonged as awn 0.4–2.4 mm. Staminate scales 3.9–4.8 × 1.2–1.8 mm, apex acute, awn 0–2.2 mm. Perigynia distichously imbricate, prominently 49–66-veined, slightly inflated, narrowly obovate in outline, obtusely trigonous in cross section, 4.1–4.7 × 1.4–1.6, 2.7–3.1 times as long as wide, 1.8–1.9 times as long as achene bodies, base gradually tapered, apex gradually tapered; beak absent or straight, 0–0.4 mm, 0–0.1 of perigynium length. Achenes 2.9–3.4 × 1.3–1.4 mm, tightly enveloped by perigynia, base abruptly contracted, apex abruptly contracted; stipe 0.5–0.6 mm; body 2.2–2.6 mm; beak straight, 0.1–0.3 mm. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Novon 12: 514 2002 to Novon 12: 514 (2002), information provided by Alan E. on email Jun. 07 2021 More details could be found in The Plant [details]