Cyperaceae taxon details
Carex ayako-maedae T.Koyama
1678097 (urn:lsid:marinespecies.org:taxname:1678097)
accepted
Species
terrestrial
Koyama, T. (2016). A new species of Carex (Cyperaceae) from Taiwan. <em>Makinoa.</em> 11: 43-47.
page(s): 43 [details] Available for editors
[request]
page(s): 43 [details] Available for editors
[request]
Holotype TNM, geounit Taiwan
Holotype TNM, geounit Taiwan [details]
Description Perennis rhizomate brevi recto fibris fusco-brunneis vestito. Folia surculorum sterilum linearia, 7–20 cm longa, 2–3.5...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Makinoa, n.s. 11: 43. 2016 [Aug 2016] to Makinoa , n.s., 11: 43...
Description Perennis rhizomate brevi recto fibris fusco-brunneis vestito. Folia surculorum sterilum linearia, 7–20 cm longa, 2–3.5 mm lata, rigidula, margine scabra, versus apicem longe acuminata sensim attenuata; vaginae 1–3 cm longae, fuscae, in fibris parallelis fusco-brunneis solutae. Culmi laterales, graciles, 10–25 cm alti, 0.5–0.75 mm lati, leves, basi cataphyllis 2 vel 3 vestiti; cataphyllorum laminae lineares, 3–5 cm longae, ca. 2 mm latae; earum vaginae 2–3 cm longae, fusco-brunneae. Bracteae imae angustae lineares, laminis (1–) 2–4 cm longis 0.5–0.75 mm latis, vaginis 10–17 mm longis stramineo-tinctis; bracteae superiores setaceae usque 10 mm longae, breviter vaginantes. Inflorescentia racemosa; spicae 2 vel 3; spica terminalis masculina lineari-clavata, 1–2 cm longa, 1–1.5 mm lata, brunnescens, apice acuta; eae laterales androgynae, longe exserte pedunculatae, 2–3 cm longae, 1–1.5 mm latae, partibus foemineis sublaxe 4–10-floribus; partibus masculis 0.5–1 cm longis acutis. Glumae masculae lineari-oblanceolatae, 5–6 mm longae, 1.5 mm latae, membranaceae, brunnescentes, apice cuspidatae. Glumae foemineae ellipticae 3.8–4.2 mm longae, 1.8–2.2 mm latae, membranaceae, pallidae vel stramineae, apice subacutae, costa viridi subtrinervosa apice in mucronem vel cuspidem ca. 0.5 mm longum excurrente. Utriculi fusiformes, 5.75–6 mm longi, obtuse trigoni, 1.25–1.5 mm lati, membranacei, pallide virides, sparse puberuli vel fere glabrati, basi cuneati, apice in rostrum 1.5–1.75 mm longum sensim attenuates, ore oblique secato minute bidentato. Achaenia anguste elliptica. [details]
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Makinoa, n.s. 11: 43. 2016 [Aug 2016] to Makinoa , n.s., 11: 43...
Taxonomic remark Source in seed data: ipni Update namepublishedIn from Makinoa, n.s. 11: 43. 2016 [Aug 2016] to Makinoa , n.s., 11: 43 (2016), information provided by Alan E. on email Jun. 07 2021 [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex ayako-maedae T.Koyama. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1678097 on 2025-06-02
Date
action
by
2024-12-10 11:47:54Z
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Nomenclature
original description
Koyama, T. (2016). A new species of Carex (Cyperaceae) from Taiwan. <em>Makinoa.</em> 11: 43-47.
page(s): 43 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 43 [details] Available for editors
[request]basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Other
additional source
Li, B. Z.; Zhang, S. R. (2024). An updated species checklist and taxonomic synopsis of Cyperaceae in China. <em>Biodiversity Science.</em> 32(7): 24106., available online at https://doi.org/10.17520/biods.2024106 [details] Available for editors [request]
[request]
Present Inaccurate Introduced: alien Containing type locality
Holotype TNM, geounit Taiwan [details]
From editor or global species database
Description Perennis rhizomate brevi recto fibris fusco-brunneis vestito. Folia surculorum sterilum linearia, 7–20 cm longa, 2–3.5 mm lata, rigidula, margine scabra, versus apicem longe acuminata sensim attenuata; vaginae 1–3 cm longae, fuscae, in fibris parallelis fusco-brunneis solutae. Culmi laterales, graciles, 10–25 cm alti, 0.5–0.75 mm lati, leves, basi cataphyllis 2 vel 3 vestiti; cataphyllorum laminae lineares, 3–5 cm longae, ca. 2 mm latae; earum vaginae 2–3 cm longae, fusco-brunneae. Bracteae imae angustae lineares, laminis (1–) 2–4 cm longis 0.5–0.75 mm latis, vaginis 10–17 mm longis stramineo-tinctis; bracteae superiores setaceae usque 10 mm longae, breviter vaginantes. Inflorescentia racemosa; spicae 2 vel 3; spica terminalis masculina lineari-clavata, 1–2 cm longa, 1–1.5 mm lata, brunnescens, apice acuta; eae laterales androgynae, longe exserte pedunculatae, 2–3 cm longae, 1–1.5 mm latae, partibus foemineis sublaxe 4–10-floribus; partibus masculis 0.5–1 cm longis acutis. Glumae masculae lineari-oblanceolatae, 5–6 mm longae, 1.5 mm latae, membranaceae, brunnescentes, apice cuspidatae. Glumae foemineae ellipticae 3.8–4.2 mm longae, 1.8–2.2 mm latae, membranaceae, pallidae vel stramineae, apice subacutae, costa viridi subtrinervosa apice in mucronem vel cuspidem ca. 0.5 mm longum excurrente. Utriculi fusiformes, 5.75–6 mm longi, obtuse trigoni, 1.25–1.5 mm lati, membranacei, pallide virides, sparse puberuli vel fere glabrati, basi cuneati, apice in rostrum 1.5–1.75 mm longum sensim attenuates, ore oblique secato minute bidentato. Achaenia anguste elliptica. [details]Taxonomic remark Source in seed data: ipni Update namepublishedIn from Makinoa, n.s. 11: 43. 2016 [Aug 2016] to Makinoa , n.s., 11: 43 (2016), information provided by Alan E. on email Jun. 07 2021 [details]
Translation Perennial with a short straight rhizome covered in dark brown fibers. Leaves of the sterile shoots are linear, 7–20 cm long, 2–3.5 mm wide, somewhat rigid, with rough margins, gradually narrowing to a long pointed tip; sheaths 1–3 cm long, dark, breaking down into parallel dark brown fibers. Culms lateral, slender, 10–25 cm tall, 0.5–0.75 mm wide, smooth, with 2 or 3 cataphylls at the base; cataphyll blades linear, 3–5 cm long, about 2 mm wide; their sheaths 2–3 cm long, dark brown. Lowest bracts narrowly linear, blades (1–) 2–4 cm long and 0.5–0.75 mm wide, sheaths 10–17 mm long, straw-colored; upper bracts setaceous, up to 10 mm long, briefly sheathing. Inflorescence racemose; 2 or 3 spikes; terminal spike male, linear-clavate, 1–2 cm long, 1–1.5 mm wide, brownish, with a pointed tip; lateral ones androgynous, long-stalked, 2–3 cm long, 1–1.5 mm wide, with female parts loosely bearing 4–10 flowers; male parts 0.5–1 cm long, pointed. Male glumes linear-oblanceolate, 5–6 mm long, 1.5 mm wide, membranous, brownish, with a cuspidate tip. Female glumes elliptical, 3.8–4.2 mm long, 1.8–2.2 mm wide, membranous, pale or straw-colored, slightly pointed at the tip, with a greenish three-veined midrib extending into a mucro or cusp about 0.5 mm long. Utricles fusiform, 5.75–6 mm long, bluntly trigonous, 1.25–1.5 mm wide, membranous, pale green, sparsely pubescent or nearly glabrous, wedge-shaped at the base, tapering gradually into a beak 1.5–1.75 mm long, with an obliquely cut mouth, minutely two-toothed. Achenes narrowly elliptical. [details]
