Cyperaceae taxon details
Mesomelaena stygia (R.Br.) Nees
1678580 (urn:lsid:marinespecies.org:taxname:1678580)
accepted
Species
Chaetospora stygia R.Br. · unaccepted
Schoenus stygius (R.Br.) Roem. & Schult. · unaccepted
- Subspecies Mesomelaena stygia subsp. deflexa (Kük.) K.L.Wilson
- Subspecies Mesomelaena stygia subsp. stygia (R.Br.) Nees
- Variety Mesomelaena stygia var. deflexa Kük. accepted as Mesomelaena stygia subsp. deflexa (Kük.) K.L.Wilson
- Variety Mesomelaena stygia var. preissii (Nees) Kük. accepted as Mesomelaena preissii Nees
- Variety Mesomelaena stygia var. pseudostygia Kük. accepted as Mesomelaena pseudostygia (Kük.) K.L.Wilson
- Variety Mesomelaena stygia var. stygia (R.Br.) Nees (uncertain > unassessed)
recent only
(of Chaetospora stygia R.Br.) Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 233 [details]
page(s): 233 [details]
Lectotype (of Chaetospora stygia R.Br.) BM 000798946,...
Lectotype (of Chaetospora stygia R.Br.) BM 000798946, geounit Western Australia [details]
Description Culms erect, terete, ± smooth, without nodes, light yellow-green, 10-50 cm high,
0.5-1.5 mm diam. Leaf-sheaths...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (R.Br.) Nees to Nees, information provided by Alan E. on...
0.5-1.5 mm diam. Leaf-sheaths...
Description Culms erect, terete, ± smooth, without nodes, light yellow-green, 10-50 cm high,
0.5-1.5 mm diam. Leaf-sheaths yellow-brown, shining, remaining intact; ligule
membranous, to 5 mm long; leaf-blades reduced, to 3 cm long. Inflorescence
hemispherical, 7-12 mm diam., occasionally reduced to 1 spikelet. Involucral
bracts: 1 exceeding the inflorescence, erect or occasionally bent at right-angles to
the culm, 2-5.5 cm long, the broad base with a hyaline margin; a second bract with
broad base and short awn opposite the first bract. Spikelets 5.5-7 mm long; glumes
5-10, with an excurved or recurved awn. Anthers c. 3 mm long, with an apical
appendage 1.0-1.5 mm long. Nut 2.5-3.5 mm long 1.1-1.7 mm diam., whitish,
ovate to ovate-oblong; gynophore yellowish, with very small disc or disc absent. [details]
0.5-1.5 mm diam. Leaf-sheaths yellow-brown, shining, remaining intact; ligule
membranous, to 5 mm long; leaf-blades reduced, to 3 cm long. Inflorescence
hemispherical, 7-12 mm diam., occasionally reduced to 1 spikelet. Involucral
bracts: 1 exceeding the inflorescence, erect or occasionally bent at right-angles to
the culm, 2-5.5 cm long, the broad base with a hyaline margin; a second bract with
broad base and short awn opposite the first bract. Spikelets 5.5-7 mm long; glumes
5-10, with an excurved or recurved awn. Anthers c. 3 mm long, with an apical
appendage 1.0-1.5 mm long. Nut 2.5-3.5 mm long 1.1-1.7 mm diam., whitish,
ovate to ovate-oblong; gynophore yellowish, with very small disc or disc absent. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (R.Br.) Nees to Nees, information provided by Alan E. on...
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (R.Br.) Nees to Nees, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v.1.1.< [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Mesomelaena stygia (R.Br.) Nees. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678580 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
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Nomenclature
original description
(of Chaetospora stygia R.Br.) Brown, R. (1810). Prodromus florae Novae Hollandiae et Insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805 per oras utriusque insulae collegit et descripsit Robertus Brown; insertis passim aliis speciebus auctori hucusque cognitis, seu evulgatis, seu ineditis, praesertim Banksianis, in primo itinere navarchi Cook detectis. Vol. 1 pp. [i]-viii, 145-590 p., [1] h. ["Addenda"]. Londini [London]: typis Richardi Taylori et Scoii. Veneunt apud J. Johnson et Socios, in Caementerio Sancti Pauli., available online at https://www.biodiversitylibrary.org/page/6157371
page(s): 233 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Nees von Esenbeck, C. G. D. (1846). Cyperaceae. Pp. 72-94 in Lehmann, J.G.C.(ed.), Plantae Preissianae vol. 2. , available online at https://www.biodiversitylibrary.org/page/498822
page(s): 89 [details]
page(s): 233 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
new combination reference Nees von Esenbeck, C. G. D. (1846). Cyperaceae. Pp. 72-94 in Lehmann, J.G.C.(ed.), Plantae Preissianae vol. 2. , available online at https://www.biodiversitylibrary.org/page/498822
page(s): 89 [details]
Present Inaccurate Introduced: alien Containing type locality
Lectotype (of Chaetospora stygia R.Br.) BM 000798946, geounit Western Australia [details]
From editor or global species database
Description Culms erect, terete, ± smooth, without nodes, light yellow-green, 10-50 cm high,0.5-1.5 mm diam. Leaf-sheaths yellow-brown, shining, remaining intact; ligule
membranous, to 5 mm long; leaf-blades reduced, to 3 cm long. Inflorescence
hemispherical, 7-12 mm diam., occasionally reduced to 1 spikelet. Involucral
bracts: 1 exceeding the inflorescence, erect or occasionally bent at right-angles to
the culm, 2-5.5 cm long, the broad base with a hyaline margin; a second bract with
broad base and short awn opposite the first bract. Spikelets 5.5-7 mm long; glumes
5-10, with an excurved or recurved awn. Anthers c. 3 mm long, with an apical
appendage 1.0-1.5 mm long. Nut 2.5-3.5 mm long 1.1-1.7 mm diam., whitish,
ovate to ovate-oblong; gynophore yellowish, with very small disc or disc absent. [details]
Taxonomic remark Source in seed data: wcs Updated scientificnameAuthorship from (R.Br.) Nees to Nees, information provided by Alan E. on email Oct. 12 2020 More details could be found in The Plant List v.1.1.< [details]
To Biodiversity Heritage Library (14 publications) (from synonym Chaetospora stygia R.Br.)
To Biodiversity Heritage Library (15 publications)
To Biodiversity Heritage Library (5 publications) (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To International Plant Names Index (IPNI) (from synonym Chaetospora stygia R.Br.)
To International Plant Names Index (IPNI) (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To Plants of the World Online (from synonym Chaetospora stygia R.Br.)
To the Natural History Museum, London (Mesomelaena stygia (R.Br.) Nees BM000798946 type 1)
To the Natural History Museum, London (Mesomelaena stygia (R.Br.) Nees BM000798947 type 1)
To Biodiversity Heritage Library (15 publications)
To Biodiversity Heritage Library (5 publications) (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To International Plant Names Index (IPNI) (from synonym Chaetospora stygia R.Br.)
To International Plant Names Index (IPNI) (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To International Plant Names Index (IPNI)
To Plants of the World Online
To Plants of the World Online (from synonym Schoenus stygius (R.Br.) Roem. & Schult.)
To Plants of the World Online (from synonym Chaetospora stygia R.Br.)
To the Natural History Museum, London (Mesomelaena stygia (R.Br.) Nees BM000798946 type 1)
To the Natural History Museum, London (Mesomelaena stygia (R.Br.) Nees BM000798947 type 1)
From editor or global species database
Hosted externally
Hosted externally
