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Cyperaceae taxon details

Costularia brevifolia Cherm.

1680454  (urn:lsid:marinespecies.org:taxname:1680454)

accepted
Species
terrestrial
Chermezon,H. (1922). Sur quelques Cypéracées nouvelles de Madagascar. <em>Bulletin de la Société botanique de France.</em> 69: 719-725., available online at https://www.biodiversitylibrary.org/page/29406458#page/757/mode/1up
page(s): 723 [details] 
Lectotype  P 00459974, geounit Madagascar  
Lectotype P 00459974, geounit Madagascar [details]
Description Robust perennial herb: Caudex 10–12 cm × 4–5 cm. Culm (appearing) lateral, robust, 50–80 cm × 5–8 mm, smooth,...  
Description Robust perennial herb: Caudex 10–12 cm × 4–5 cm. Culm (appearing) lateral, robust, 50–80 cm × 5–8 mm, smooth, with obtuse edges, slightly compressed. Basal leaves spirodistichously inserted on the caudex, leaf sheaths, 3–4 cm × 3–4 cm, brown, shiny, margins scarious, at the apex abruptly contracted, old sheaths fibrous, leaf blades 7–10 cm × 7–12 mm, flat, leathery, margins scabrid, revolute, apex rounded-obtuse. Cauline leaves 1–3, far apart, sheathing, sheaths brown. Inflorescence a panicle c. 45 cm long, loosely compound. Peduncles unequal, up to 7.5 cm long. Pedicels of the spikelets suberect or curved, 5–20 mm long. Spikelets oblong-lanceolate, compressed, apex subacute, 7–8 mm × 1.5–2 mm. Glumes distichous, oblong-lanceolate, five to six mm long, densely imbricate, straw-coloured to brown, purple-tinged, edges only from the keel up sparsely ciliolate, prominently acute or mucronate, lower three to four glumes empty, two upper glumes fertile. Flowers 2, lower male, upper bisexual. Perianth bristles 6, pale brown, plumose, three times longer than the nutlet. Stamens 3, filaments reddish-brown, anthers linear, connective conical-subulate, purple. Style long, deeply trifid, pale, with a triangular thickly cone-shaped persistant base. Nutlet 1.5 mm long, brown, obovate-oblong, with an attenuate base. [details]

Distribution Endemic to southeastern Madagascar and only known from the Atsimo Atsinana and Anosy regions in the Fianarantsoa and...  
Distribution Endemic to southeastern Madagascar and only known from the Atsimo Atsinana and Anosy regions in the Fianarantsoa and Toliara provinces. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Soc. Bot. France 69: 723. 1923 [1922 publ. 1923] to Bull. Soc....  
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Soc. Bot. France 69: 723. 1923 [1922 publ. 1923] to Bull. Soc. Bot. France 69: 723 (1922 publ. 1923), 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. Costularia brevifolia Cherm.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1680454 on 2025-04-20
Date
action
by
2023-09-06 07:35:01Z
created
2024-12-10 11:47:54Z
unchecked
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Nomenclature

original description Chermezon,H. (1922). Sur quelques Cypéracées nouvelles de Madagascar. <em>Bulletin de la Société botanique de France.</em> 69: 719-725., available online at https://www.biodiversitylibrary.org/page/29406458#page/757/mode/1up
page(s): 723 [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 P 00459974, geounit Madagascar [details]
From editor or global species database
Description Robust perennial herb: Caudex 10–12 cm × 4–5 cm. Culm (appearing) lateral, robust, 50–80 cm × 5–8 mm, smooth, with obtuse edges, slightly compressed. Basal leaves spirodistichously inserted on the caudex, leaf sheaths, 3–4 cm × 3–4 cm, brown, shiny, margins scarious, at the apex abruptly contracted, old sheaths fibrous, leaf blades 7–10 cm × 7–12 mm, flat, leathery, margins scabrid, revolute, apex rounded-obtuse. Cauline leaves 1–3, far apart, sheathing, sheaths brown. Inflorescence a panicle c. 45 cm long, loosely compound. Peduncles unequal, up to 7.5 cm long. Pedicels of the spikelets suberect or curved, 5–20 mm long. Spikelets oblong-lanceolate, compressed, apex subacute, 7–8 mm × 1.5–2 mm. Glumes distichous, oblong-lanceolate, five to six mm long, densely imbricate, straw-coloured to brown, purple-tinged, edges only from the keel up sparsely ciliolate, prominently acute or mucronate, lower three to four glumes empty, two upper glumes fertile. Flowers 2, lower male, upper bisexual. Perianth bristles 6, pale brown, plumose, three times longer than the nutlet. Stamens 3, filaments reddish-brown, anthers linear, connective conical-subulate, purple. Style long, deeply trifid, pale, with a triangular thickly cone-shaped persistant base. Nutlet 1.5 mm long, brown, obovate-oblong, with an attenuate base. [details]

Distribution Endemic to southeastern Madagascar and only known from the Atsimo Atsinana and Anosy regions in the Fianarantsoa and Toliara provinces. [details]

Ecology It has been found growing on humid rocks in peatlands, on laterite and granite in tropical forest, and in faults of gneiss rock escarpments, at elevations of (200–)600–900 m.
Flowering specimens were collected from in March. Young inflorescences can be observed on the specimens collected in February, while old inflorescences remain on the plants until October–November. [details]

Taxonomic remark Source in seed data: wcs Update namepublishedIn from Bull. Soc. Bot. France 69: 723. 1923 [1922 publ. 1923] to Bull. Soc. Bot. France 69: 723 (1922 publ. 1923), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
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