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Cyperaceae taxon details

Tricostularia compressa Nees ex Lehm.

To Genève Herbarium (Tricostularia compressa G00195293 isotype 1)
To Genève Herbarium (Tricostularia compressa G00195293 isotype 1)

1681953  (urn:lsid:marinespecies.org:taxname:1681953)

  1. Biota
  2. Plantae (Kingdom)
  3. Viridiplantae (Subkingdom)
  4. Streptophyta (Infrakingdom)
  5. Tracheophyta (Phylum (Division))
  6. Spermatophytina (Subphylum (Subdivision))
  7. Magnoliopsida (Class)
  8. Lilianae (Superorder)
  9. Poales (Order)
  10. Cyperaceae (Family)
  11. Schoeneae (Tribe)
  12. Tricostulariinae (Subtribe)
  13. Tricostularia (Genus)
  14. Tricostularia compressa (Species)
accepted
Species
marine, brackish, fresh, terrestrial
recent only
Lehmann, J. G. C. (1844). Novarum et minus cognitarum stirpium pugillus VIII, addita enumeratione plantarum omnium in his pugillis descriptarum. , available online at https://www.biodiversitylibrary.org/page/31259402
page(s): 51 [details] 
Lectotype  LD 1732307, geounit Western Australia  
Lectotype LD 1732307, geounit Western Australia [details]
Description Perennial tufted herb, (0.15–)0.3–0.45 m high; plants clonal, forming dense to spreading tussocks 0.1–0.6 m across;...  
Description Perennial tufted herb, (0.15–)0.3–0.45 m high; plants clonal, forming dense to spreading tussocks 0.1–0.6 m across; rhizome thin, woody, short, branched, 0.7–1.2 mm diam., not pseudobulbous; old leaf sheaths covering the rhizome, not breaking apart into fine fibres with age, pale brown, prominently nerved; roots sand-binding. Culms slender, rigid, erect, not noded or occasionally with one node just below the inflorescence, compressed, semi-terete or terete, not or finely grooved, 0.4–0.6 mm diam., smooth, glabrous, dull green to yellow-green, base not enlarged. Leaves all basal, 2 or 3; phyllotaxy loosely spirotristichous; sheath 9–44 mm long, 0.8–0.9 mm wide, much broader than the leaf lamina, margins glabrous, reddish-brown at the base, straw-coloured or pale brown above, dull, upper margin narrowly membranous, oblique, glabrous, ligule absent; sheath tight around culm; pseudopetiole obscure or absent; leaves usually with a much reduced lamina to 1 mm long, to 0.3 mm wide, but young or regenerating plants sometimes have a lamina to 11 cm long; lamina highly reduced, ± triangular, glabrous, brown, concolorous, apex acute. Inflorescence contracted, panicle-like, narrow, erect, with 2–4 nodes, 1.5–3.2 cm long, 4–7 mm wide, usually somewhat interrupted, axis green or yellow-green, not glaucous, a few short, scabrid hairs on the margins; bracts reduced, not exceeding the spikelet clusters, light or orange-brown, shiny, sheaths open, not enveloping the higher bracts, gradually reducing along the inflorescence, basal bract much shorter than inflorescence, 7–11 mm long; branches erect, with 3–5 spikelets per cluster, arising in each bract axil, spikelet on short, compressed, glabrous peduncles c. 1 mm long; spikelet prophyll present, sheath 1.3–1.5 mm long, brown, with distinct midrib, partially enclosing the spikelet, acuminate, with a slender lamina 0.4–0.9 mm long, brown. Spikelets brown, ± oblate, 2.8–5.1 mm long, 0.9–1.6 mm wide, compressed, with 4 or 5 glumes, only topmost 2 fertile, the lower flower male, fertile, the upper flower bisexual, fertile, no reduced glume above the florets; glumes subdistichous, basal glume 1.4–2.3 mm long, fertile glumes 3.3–4.1 mm long, 0.8–1.1 mm wide, membranous, pale brown, orange-brown or red-brown (apex often darker than body), keel and lamina glabrous, ovate, obtuse to acute, mucro absent, keel distinct; rachilla compact and not or scarcely sinuous in fruiting spikelets. Perianth segments 6, whitish, minute, 0.3–0.9 mm long, subulate, tapering to a fine point. Stamens 3; anther connective 3.0–3.7 mm long, subulate; anthers pale yellow, 2.8–3.5 mm long, with a glabrous apical appendage up to 0.5 mm long. Style trifid, base 1.4–1.7 mm long, glabrous, slender, slightly tapering below, branches 1.3–1.9 mm long, hispidulous. Nutlet shortly stipitate, stipe c. 0.5 mm long, somewhat constricted, ± obovoid, obscurely trigonous, dull, mid-brown, 1.6–1.8 mm long including the stipe, 0.9–1.0 mm diam., faces smooth but shortly hispidulous, epidermal cells ovoid–hexagonal, inconspicuous, with three fine, hispidulous white ribs, style base not enlarged; embryo not examined. Photosynthetic pathway not examined.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nov. Stirp. Pug. [Lehmann] 8: 51. 1844; et in Lehm. Pl. Preiss. 2: 83...  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nov. Stirp. Pug. [Lehmann] 8: 51. 1844; et in Lehm. Pl. Preiss. 2: 83 (1846). to Nov. Stirp. Pug. 8: 51 (1844), 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. Tricostularia compressa Nees ex Lehm.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1681953 on 2025-09-11
Date
action
by
2023-09-06 07:35:01Z
created
Larridon, Isabel
2024-12-10 11:47:54Z
unchecked
db_admin
2025-08-01 07:42:14Z
changed
Wilson, Karen L.

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Nomenclature

original description Lehmann, J. G. C. (1844). Novarum et minus cognitarum stirpium pugillus VIII, addita enumeratione plantarum omnium in his pugillis descriptarum. , available online at https://www.biodiversitylibrary.org/page/31259402
page(s): 51 [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 
   

Lectotype LD 1732307, geounit Western Australia [details]
From editor or global species database
Description Perennial tufted herb, (0.15–)0.3–0.45 m high; plants clonal, forming dense to spreading tussocks 0.1–0.6 m across; rhizome thin, woody, short, branched, 0.7–1.2 mm diam., not pseudobulbous; old leaf sheaths covering the rhizome, not breaking apart into fine fibres with age, pale brown, prominently nerved; roots sand-binding. Culms slender, rigid, erect, not noded or occasionally with one node just below the inflorescence, compressed, semi-terete or terete, not or finely grooved, 0.4–0.6 mm diam., smooth, glabrous, dull green to yellow-green, base not enlarged. Leaves all basal, 2 or 3; phyllotaxy loosely spirotristichous; sheath 9–44 mm long, 0.8–0.9 mm wide, much broader than the leaf lamina, margins glabrous, reddish-brown at the base, straw-coloured or pale brown above, dull, upper margin narrowly membranous, oblique, glabrous, ligule absent; sheath tight around culm; pseudopetiole obscure or absent; leaves usually with a much reduced lamina to 1 mm long, to 0.3 mm wide, but young or regenerating plants sometimes have a lamina to 11 cm long; lamina highly reduced, ± triangular, glabrous, brown, concolorous, apex acute. Inflorescence contracted, panicle-like, narrow, erect, with 2–4 nodes, 1.5–3.2 cm long, 4–7 mm wide, usually somewhat interrupted, axis green or yellow-green, not glaucous, a few short, scabrid hairs on the margins; bracts reduced, not exceeding the spikelet clusters, light or orange-brown, shiny, sheaths open, not enveloping the higher bracts, gradually reducing along the inflorescence, basal bract much shorter than inflorescence, 7–11 mm long; branches erect, with 3–5 spikelets per cluster, arising in each bract axil, spikelet on short, compressed, glabrous peduncles c. 1 mm long; spikelet prophyll present, sheath 1.3–1.5 mm long, brown, with distinct midrib, partially enclosing the spikelet, acuminate, with a slender lamina 0.4–0.9 mm long, brown. Spikelets brown, ± oblate, 2.8–5.1 mm long, 0.9–1.6 mm wide, compressed, with 4 or 5 glumes, only topmost 2 fertile, the lower flower male, fertile, the upper flower bisexual, fertile, no reduced glume above the florets; glumes subdistichous, basal glume 1.4–2.3 mm long, fertile glumes 3.3–4.1 mm long, 0.8–1.1 mm wide, membranous, pale brown, orange-brown or red-brown (apex often darker than body), keel and lamina glabrous, ovate, obtuse to acute, mucro absent, keel distinct; rachilla compact and not or scarcely sinuous in fruiting spikelets. Perianth segments 6, whitish, minute, 0.3–0.9 mm long, subulate, tapering to a fine point. Stamens 3; anther connective 3.0–3.7 mm long, subulate; anthers pale yellow, 2.8–3.5 mm long, with a glabrous apical appendage up to 0.5 mm long. Style trifid, base 1.4–1.7 mm long, glabrous, slender, slightly tapering below, branches 1.3–1.9 mm long, hispidulous. Nutlet shortly stipitate, stipe c. 0.5 mm long, somewhat constricted, ± obovoid, obscurely trigonous, dull, mid-brown, 1.6–1.8 mm long including the stipe, 0.9–1.0 mm diam., faces smooth but shortly hispidulous, epidermal cells ovoid–hexagonal, inconspicuous, with three fine, hispidulous white ribs, style base not enlarged; embryo not examined. Photosynthetic pathway not examined.  [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Nov. Stirp. Pug. [Lehmann] 8: 51. 1844; et in Lehm. Pl. Preiss. 2: 83 (1846). to Nov. Stirp. Pug. 8: 51 (1844), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
To Biodiversity Heritage Library (1 publication) (from synonym Schoenus tricostularia F.Muell.)
To Biodiversity Heritage Library (16 publications) 
To Biodiversity Heritage Library (4 publications) (from synonym Chaetospora spicata Boeckeler)
To European Nucleotide Archive, ENA (Tricostularia compressa) 
To GenBank (6 nucleotides; 0 proteins) 
To Genève Herbarium (Tricostularia compressa G00195293 isotype 1) 
To International Plant Names Index (IPNI) 
To International Plant Names Index (IPNI) (from synonym Chaetospora spicata Boeckeler)
To International Plant Names Index (IPNI) (from synonym Schoenus tricostularia F.Muell.)
To Plants of the World Online (from synonym Chaetospora spicata Boeckeler)
To Plants of the World Online (from synonym Schoenus tricostularia F.Muell.)
To Plants of the World Online 
To Royal Botanic Gardens, Kew (Tricostularia compressa K000960119 type 1) 
To Royal Botanic Gardens, Kew (Tricostularia compressa K000960120 type 1) 
From editor or global species database
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