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Cyperaceae taxon details

Carex geophila Mack.

1677785  (urn:lsid:marinespecies.org:taxname:1677785)

accepted
Species
terrestrial
Mackenzie, K. K. (1913). Notes on Carex VII. <em>Bulletin of the Torrey Botanical Club.</em> 40: 529-554., available online at https://www.biodiversitylibrary.org/page/16442720#page/554/mode/1up
page(s): 546 [details] 
Holotype  US 00087203, geounit New Mexico  
Holotype US 00087203, geounit New Mexico [details]
Description Plants densely cespitose; rhizomes, horizontal to ascending, brown to reddish brown, 0–9 mm, slender. Culms 3–22 cm,...  
Description Plants densely cespitose; rhizomes, horizontal to ascending, brown to reddish brown, 0–9 mm, slender. Culms 3–22 cm, strongly scabrous distally; bases (remnants of old leaves) fibrous. Leaf blades pale green, equaling or exceeding stems, 0.8–2.3 mm wide, coriaceous, glabrous abaxially, scabrous to papillose adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of basal spikes stout, usually short, erect; peduncles of staminate spikes 1.1–8.8 mm; proximal nonbasal bracts scalelike, usually equaling or shorter than inflorescences. Spikes: proximal pistillate spikes 1–4 (basal spikes 1–2); cauline spikes overlapping or somewhat separated, with 5–15 perigynia; staminate spikes 6.9–16.9 × 1.4–2 mm. Scales: pistillate scales pale reddish brown with broad white margins, ovate, 3–4.3 × 1.5–1.8 mm, equaling perigynia, apex acute or cuspidate to acuminate; staminate scales lanceolate, 4.8–6.8 × 1.5–1.6 mm, apex acute to acuminate. Anthers 2–3.1 mm. Perigynia pale green to yellowish brown, veinless or faintly to 6-veined near base, globose to obovoid or ellipsoid, round in cross section, 2.7–4 × 1.5–2 mm; beak straight, pale green, not strongly 2-edged, 0.4–1 mm, ciliate-serrulate, apical teeth 0.2 mm. Stigmas 3. Achenes brown, globose to obovoid, round in cross section, 1.6–2.8 × 1.5–1.9 mm.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 40: 546 1913 to Bull. Torrey Bot. Club 40: 546...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 40: 546 1913 to Bull. Torrey Bot. Club 40: 546 (1913), 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 geophila Mack.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677785 on 2025-09-13
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 Mackenzie, K. K. (1913). Notes on Carex VII. <em>Bulletin of the Torrey Botanical Club.</em> 40: 529-554., available online at https://www.biodiversitylibrary.org/page/16442720#page/554/mode/1up
page(s): 546 [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 US 00087203, geounit New Mexico [details]
From editor or global species database
Description Plants densely cespitose; rhizomes, horizontal to ascending, brown to reddish brown, 0–9 mm, slender. Culms 3–22 cm, strongly scabrous distally; bases (remnants of old leaves) fibrous. Leaf blades pale green, equaling or exceeding stems, 0.8–2.3 mm wide, coriaceous, glabrous abaxially, scabrous to papillose adaxially. Inflorescences with both staminate and pistillate spikes; peduncles of basal spikes stout, usually short, erect; peduncles of staminate spikes 1.1–8.8 mm; proximal nonbasal bracts scalelike, usually equaling or shorter than inflorescences. Spikes: proximal pistillate spikes 1–4 (basal spikes 1–2); cauline spikes overlapping or somewhat separated, with 5–15 perigynia; staminate spikes 6.9–16.9 × 1.4–2 mm. Scales: pistillate scales pale reddish brown with broad white margins, ovate, 3–4.3 × 1.5–1.8 mm, equaling perigynia, apex acute or cuspidate to acuminate; staminate scales lanceolate, 4.8–6.8 × 1.5–1.6 mm, apex acute to acuminate. Anthers 2–3.1 mm. Perigynia pale green to yellowish brown, veinless or faintly to 6-veined near base, globose to obovoid or ellipsoid, round in cross section, 2.7–4 × 1.5–2 mm; beak straight, pale green, not strongly 2-edged, 0.4–1 mm, ciliate-serrulate, apical teeth 0.2 mm. Stigmas 3. Achenes brown, globose to obovoid, round in cross section, 1.6–2.8 × 1.5–1.9 mm.
 [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Torrey Bot. Club 40: 546 1913 to Bull. Torrey Bot. Club 40: 546 (1913), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]