Cyperaceae taxon details
Carex chathamica Petrie
1675977 (urn:lsid:marinespecies.org:taxname:1675977)
accepted
Species
terrestrial
Petrie, M. A. (1914). Descriptions of New Native Phanerogams, with other Short Notices. <em>Transactions and Proceedings of the New Zealand Institute.</em> 47: 48-59.
page(s): 55 [details]
page(s): 55 [details]
Lectotype WELT 012104, geounit Chatham Is.
Lectotype WELT 012104, geounit Chatham Is. [details]
Description Tufts stout, rigid, lfy, pale green. Culms 5–35 cm. × 1.5–3 mm., trigonous, smooth, sturdy; basal sheaths light brown....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. & Proc. New Zealand Inst. 1914, xlvii. 55 (1915). to Trans. &...
Description Tufts stout, rigid, lfy, pale green. Culms 5–35 cm. × 1.5–3 mm., trigonous, smooth, sturdy; basal sheaths light brown. Lvs not overtopping infl., 6–8 mm. wide, double-folded, margins slightly thickened, densely but finely serrate, particularly towards the tapered tip; base of lf neither sheathing nor enlarged but marked by a purplish ligule. Infl. of 6–8 us. simple, light brown spikes; uppermost 2–4 spikes male, shorter and more slender than the female, sessile, ± approximate; remaining spikes female with a few male fls at the top, 3–7.5 × 1–1.5 cm., erect on stout peduncles, both spikes and peduncles becoming progressively shorter higher up the infl.; subtending bracts lfy, > infl., almost enclosing the peduncles with their sheaths. Glumes much > utricles, linear-lanceolate, emarginate or entire, faintly nerved, membr., light brown to dark brown or red-purple, paler towards the margins, midrib pale brown produced to a long hispid awn. Utricles 3–4.5 × c. 2 mm., unequally biconvex, obovoid, turgid, pale green or brownish green, lateral nerves well-marked, otherwise smooth, margins glab., abruptly contracted to a narrow, deeply bidentate beak slightly > 0.5 mm. long, orifice slightly scabrid; stipe c. 0.5 mm. long, whitish. Stigmas 3. Nut c. 2 mm. long, trigonous, oblong-obovoid, pale grey-brown. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. & Proc. New Zealand Inst. 1914, xlvii. 55 (1915). to Trans. &...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. & Proc. New Zealand Inst. 1914, xlvii. 55 (1915). to Trans. & Proc. New Zealand Inst. 47: 55 (1914 publ. 1915), information provided by Alan E. on email Jun. 07 2021 More details could be found [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex chathamica Petrie. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1675977 on 2026-05-31
Date
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2024-12-10 11:47:54Z
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db_admin
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Nomenclature
original description
Petrie, M. A. (1914). Descriptions of New Native Phanerogams, with other Short Notices. <em>Transactions and Proceedings of the New Zealand Institute.</em> 47: 48-59.
page(s): 55 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 55 [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 WELT 012104, geounit Chatham Is. [details]
From editor or global species database
Description Tufts stout, rigid, lfy, pale green. Culms 5–35 cm. × 1.5–3 mm., trigonous, smooth, sturdy; basal sheaths light brown. Lvs not overtopping infl., 6–8 mm. wide, double-folded, margins slightly thickened, densely but finely serrate, particularly towards the tapered tip; base of lf neither sheathing nor enlarged but marked by a purplish ligule. Infl. of 6–8 us. simple, light brown spikes; uppermost 2–4 spikes male, shorter and more slender than the female, sessile, ± approximate; remaining spikes female with a few male fls at the top, 3–7.5 × 1–1.5 cm., erect on stout peduncles, both spikes and peduncles becoming progressively shorter higher up the infl.; subtending bracts lfy, > infl., almost enclosing the peduncles with their sheaths. Glumes much > utricles, linear-lanceolate, emarginate or entire, faintly nerved, membr., light brown to dark brown or red-purple, paler towards the margins, midrib pale brown produced to a long hispid awn. Utricles 3–4.5 × c. 2 mm., unequally biconvex, obovoid, turgid, pale green or brownish green, lateral nerves well-marked, otherwise smooth, margins glab., abruptly contracted to a narrow, deeply bidentate beak slightly > 0.5 mm. long, orifice slightly scabrid; stipe c. 0.5 mm. long, whitish. Stigmas 3. Nut c. 2 mm. long, trigonous, oblong-obovoid, pale grey-brown. [details]Taxonomic remark Source in seed data: wcs Update namepublishedIn from Trans. & Proc. New Zealand Inst. 1914, xlvii. 55 (1915). to Trans. & Proc. New Zealand Inst. 47: 55 (1914 publ. 1915), information provided by Alan E. on email Jun. 07 2021 More details could be found [details]
