svg-backdrop

Cyperaceae taxon details

Carex paratatsiensis Y.F.Lu & X.F.Jin

1677898  (urn:lsid:marinespecies.org:taxname:1677898)

accepted
Species
terrestrial
Lu, Y.-F.; Jin, X.-F. (2022). Notes on <i>Carex</i> (Cyperaceae) from China (VIII): five new species and a new variety from southern and south-western China. <em>PhytoKeys.</em> 188: 31-47., available online at https://doi.org/10.3897/phytokeys.188.77776
page(s): 37 [details] Available for editors  PDF available [request]
Holotype  ZM, geounit Tibet  
Holotype ZM, geounit Tibet [details]
Description Rhizomes slender, long, woody, long-stoloniferous. Culms central, 14–30 cm tall, slender, obtusely trigonous, lower part...  
Description Rhizomes slender, long, woody, long-stoloniferous. Culms central, 14–30 cm tall, slender, obtusely trigonous, lower part smooth and upper part scabrous, base with red-brown fibrous sheaths. Leaves shorter than culms; blades flat, 1–2 mm wide, margin scabrous. Bracts shortly leaf-like or uppermost setaceous, shorter to longer than inflorescence, base with 0.5–2 cm long sheaths. Spikes 2–4, remote; terminal 1 or 2 spikes staminate, narrowly cylindrical, 1–3.5 cm long, 1–2.5 mm wide, base with 0.3–6 cm long peduncles; lateral spikes pistillate, single or rarely binate, cylindrical, 0.8–2.7 cm long, 2.5–4 mm wide, 8–18-flowered, peduncles erect, slender, 0.3–7.5 cm long, exserted from sheaths. Staminate glumes obovate-lanceolate, red-brown, 5–5.5 mm long, apex acute or emarginate, with yellow 3-veined costa excurrent into a mucro. Pistillate glumes ovate or broadly ovate, red-brown, 2.5–2.8 mm long, margin whitish hyaline, apex acute or emarginate, with yellow-brown 3-veined costa excurrent into a mucro. Utricles red-brown and yellow-green below, ellipsoid, obtusely trigonous, 3–3.2 mm long, membranous, obliquely patent, inconspicuously several thinly veined, base cuneate and shortly stipitate, apex gradually contracted into a ca. 1 mm long beak, orifice truncate or 2-lobed with minute teeth, margin barbate. Nutlets tightly enveloped, yellow, obovoid, trigonous, 1.8–2 mm long, apex with ca. 0.3 mm long curved beak; style base not thickened; stigmas 2 or 3. [details]

Etymology The specific epithet ‘paratatsiensis’ refers to the similarity with Carex tatsiensis.  
Etymology The specific epithet ‘paratatsiensis’ refers to the similarity with Carex tatsiensis. [details]

LSID urn:lsid:ipni.org:names:77235056-1  
LSID urn:lsid:ipni.org:names:77235056-1 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex paratatsiensis Y.F.Lu & X.F.Jin. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677898 on 2025-04-19
Date
action
by
2023-09-06 07:28:28Z
created
2024-12-10 11:47:54Z
unchecked
db_admin
2025-01-23 11:31:21Z
checked
2025-03-11 11:19:03Z
changed

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


Nomenclature

original description Lu, Y.-F.; Jin, X.-F. (2022). Notes on <i>Carex</i> (Cyperaceae) from China (VIII): five new species and a new variety from southern and south-western China. <em>PhytoKeys.</em> 188: 31-47., available online at https://doi.org/10.3897/phytokeys.188.77776
page(s): 37 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Holotype ZM, geounit Tibet [details]
Isotype ZJFC, geounit Tibet [details]
Isotype ZM, geounit Tibet [details]
From editor or global species database
Description Rhizomes slender, long, woody, long-stoloniferous. Culms central, 14–30 cm tall, slender, obtusely trigonous, lower part smooth and upper part scabrous, base with red-brown fibrous sheaths. Leaves shorter than culms; blades flat, 1–2 mm wide, margin scabrous. Bracts shortly leaf-like or uppermost setaceous, shorter to longer than inflorescence, base with 0.5–2 cm long sheaths. Spikes 2–4, remote; terminal 1 or 2 spikes staminate, narrowly cylindrical, 1–3.5 cm long, 1–2.5 mm wide, base with 0.3–6 cm long peduncles; lateral spikes pistillate, single or rarely binate, cylindrical, 0.8–2.7 cm long, 2.5–4 mm wide, 8–18-flowered, peduncles erect, slender, 0.3–7.5 cm long, exserted from sheaths. Staminate glumes obovate-lanceolate, red-brown, 5–5.5 mm long, apex acute or emarginate, with yellow 3-veined costa excurrent into a mucro. Pistillate glumes ovate or broadly ovate, red-brown, 2.5–2.8 mm long, margin whitish hyaline, apex acute or emarginate, with yellow-brown 3-veined costa excurrent into a mucro. Utricles red-brown and yellow-green below, ellipsoid, obtusely trigonous, 3–3.2 mm long, membranous, obliquely patent, inconspicuously several thinly veined, base cuneate and shortly stipitate, apex gradually contracted into a ca. 1 mm long beak, orifice truncate or 2-lobed with minute teeth, margin barbate. Nutlets tightly enveloped, yellow, obovoid, trigonous, 1.8–2 mm long, apex with ca. 0.3 mm long curved beak; style base not thickened; stigmas 2 or 3. [details]

Etymology The specific epithet ‘paratatsiensis’ refers to the similarity with Carex tatsiensis. [details]

LSID urn:lsid:ipni.org:names:77235056-1 [details]
    Definitions

Loading...