Cyperaceae taxon details
Carex praeceptorum Mack.
1678016 (urn:lsid:marinespecies.org:taxname:1678016)
accepted
Species
Carex canescens var. dubia L.H.Bailey · unaccepted
Carex heleonastes var. dubia (L.H.Bailey) B.Boivin · unaccepted
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]
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....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from N. Amer. Fl. 18: 95 1931 to N. Amer. Fl. 18: 95 (1931), information...
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
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2024-12-10 11:47:54Z
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db_admin
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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]
page(s): 95 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]




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]
To Biodiversity Heritage Library (2 publications) (from synonym Carex canescens var. dubia L.H.Bailey)
To Biodiversity Heritage Library (23 publications)
To European Nucleotide Archive, ENA (Carex praeceptorum)
To GenBank (42 nucleotides; 18 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex canescens var. dubia L.H.Bailey)
To International Plant Names Index (IPNI) (from synonym Carex heleonastes var. dubia (L.H.Bailey) B.Boivin)
To New York Botanical Garden Steere Herbarium (Carex_praeceptorium_NY11285_holotype_1)
To Plants of the World Online (from synonym Carex canescens var. dubia L.H.Bailey)
To Plants of the World Online
To Plants of the World Online (from synonym Carex heleonastes var. dubia (L.H.Bailey) B.Boivin)
To US Herbarium (Carex canescens dubia US29008 type 1) (from synonym Carex canescens var. dubia L.H.Bailey)
To Biodiversity Heritage Library (23 publications)
To European Nucleotide Archive, ENA (Carex praeceptorum)
To GenBank (42 nucleotides; 18 proteins)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex canescens var. dubia L.H.Bailey)
To International Plant Names Index (IPNI) (from synonym Carex heleonastes var. dubia (L.H.Bailey) B.Boivin)
To New York Botanical Garden Steere Herbarium (Carex_praeceptorium_NY11285_holotype_1)
To Plants of the World Online (from synonym Carex canescens var. dubia L.H.Bailey)
To Plants of the World Online
To Plants of the World Online (from synonym Carex heleonastes var. dubia (L.H.Bailey) B.Boivin)
To US Herbarium (Carex canescens dubia US29008 type 1) (from synonym Carex canescens var. dubia L.H.Bailey)
From editor or global species database
Hosted externally, from synonym