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Cyperaceae taxon details

Carex praeceptorum Mack.

1678016  (urn:lsid:marinespecies.org:taxname:1678016)

accepted
Species
terrestrial
Mackenzie, K. K. (1931). North American Flora. , Vol. 18, Part 2;(Poales),(Cyperaceae), Cariceae(Continuatio), pp. 58. Nre Yoir Botanical Garden., available online at https://archive.org/details/northamericanflo182newy/page/n5/mode/2up
page(s): 95 [details] 
Holotype  NY 11285, geounit Washington  
Holotype NY 11285, geounit Washington [details]
Description Plants loosely or densely cespitose, in small clumps; rhizomes short. Culms usually erect, slender, 10–20(–30) cm....  
Description Plants loosely or densely cespitose, in small clumps; rhizomes short. Culms usually erect, slender, 10–20(–30) cm. Leaves: sheaths pale brown abaxially, inner band thin, hyaline, sometimes red tinged, concave at summit; ligules as long as wide; blades pale to gray-green, flat, 5–15 cm × 1.5–2.5 mm, shorter than culms, thin. Inflorescences 1–1.5(–2) cm × 5–10 mm; proximal bracts bristlelike, prolonged, distal bracts scalelike. Spikes 3–5, gynecandrous, approximate, sessile, containing 8–15(–20) perigynia; terminal spike staminate for less than 1/2 of length, shortly clavate, oblong-ovoid, 4–7 × 3–5 mm. Pistillate scales light chestnut-brown with lighter center and hyaline margins, ovate, subequal to perigynia, apex obtuse. Perigynia appressed-ascending, pale brown, often darker brown in age, finely several-veined, elliptic-ovate, 1.5–2 × 1 mm, widest near middle, membranous; beak short, entire or slightly serrulate. Achenes pale brown, broadly obovate, 1.25 × 0.8–1 mm, dull to slightly glossy. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from N. Amer. Fl. 18: 95 1931 to N. Amer. Fl. 18: 95 (1931), information...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from N. Amer. Fl. 18: 95 1931 to N. Amer. Fl. 18: 95 (1931), 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 praeceptorum Mack.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678016 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 Mackenzie, K. K. (1931). North American Flora. , Vol. 18, Part 2;(Poales),(Cyperaceae), Cariceae(Continuatio), pp. 58. Nre Yoir Botanical Garden., available online at https://archive.org/details/northamericanflo182newy/page/n5/mode/2up
page(s): 95 [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 NY 11285, geounit Washington [details]
From editor or global species database
Description Plants loosely or densely cespitose, in small clumps; rhizomes short. Culms usually erect, slender, 10–20(–30) cm. Leaves: sheaths pale brown abaxially, inner band thin, hyaline, sometimes red tinged, concave at summit; ligules as long as wide; blades pale to gray-green, flat, 5–15 cm × 1.5–2.5 mm, shorter than culms, thin. Inflorescences 1–1.5(–2) cm × 5–10 mm; proximal bracts bristlelike, prolonged, distal bracts scalelike. Spikes 3–5, gynecandrous, approximate, sessile, containing 8–15(–20) perigynia; terminal spike staminate for less than 1/2 of length, shortly clavate, oblong-ovoid, 4–7 × 3–5 mm. Pistillate scales light chestnut-brown with lighter center and hyaline margins, ovate, subequal to perigynia, apex obtuse. Perigynia appressed-ascending, pale brown, often darker brown in age, finely several-veined, elliptic-ovate, 1.5–2 × 1 mm, widest near middle, membranous; beak short, entire or slightly serrulate. Achenes pale brown, broadly obovate, 1.25 × 0.8–1 mm, dull to slightly glossy. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from N. Amer. Fl. 18: 95 1931 to N. Amer. Fl. 18: 95 (1931), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]