Cyperaceae taxon details
Lagenocarpus pendulus T.Koyama
1679440 (urn:lsid:marinespecies.org:taxname:1679440)
accepted
Species
terrestrial
Koyama, T.; Maguire, B. (1965). The botany of the Guayana Highlands 6. Cyperaceae - Lagenocarpeae. Memoirs of the New York Botanical Garden, 12(1): 8-54.
page(s): 44 [details]
page(s): 44 [details]
Holotype US 00087086, geounit Colombia
Holotype US 00087086, geounit Colombia [details]
Description Rhizoma crassiusculum decumbenti-ascendens usque ad 8 em longum 17 mm crassum fibris fusco-brunneis vestitum. Folia in...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. New York Bot. Gard. 12(3): 44 1965 to Mem. New York Bot. Gard....
Description Rhizoma crassiusculum decumbenti-ascendens usque ad 8 em longum 17 mm crassum fibris fusco-brunneis vestitum. Folia in majore parte radicalia et 2 vel 3 superiora caulina; laminae anguste lineares 40-65 cm longae 3-5 mm lataeplicato-planae rigidulae supra minutissime verruculosae ad apicem acutissimam sensim attenuantes subtus pallidiores et plerumque puberulentes; vaginae 2-3 em longae sparse puberulentes mox glabrae apicem versus brunneotinctae, contraligula rotundo-deltoidea 2-3 mm longa, ciliata. Culmus solitarius centralis 80-100 em altus gracilescens obtuse trigonus facie canaliculatus apice puberulens basi mox glaber. Inflorescentia 30-60 em longa apice cernua fasciculato-paniculata subeontigua vel plus minus interrupta, axe ramisque pubesulentibus,
bracteis panicula sua multo brevioribus; paniculae partiales inferiores 2 mascu-lae, ceterae foemineae, ramis ramulisque gracilibus pendulis, bracteolis vaginiformis. Spiculae masculae solitariae vel geminae 3 mm longae anguste ellipticae ; _glumae plures ellipticae acutae adpresse hispido-pubescentes ; stamina plerum- que 2. Spiculae foemineae solitariae uniflorae maturitate ellipsoideae 3.5 mm - longae fulvo-brunneae; glumae imbricatae circiter 6, superiores late ellipticae ~ 8mm longae vix 2 mm latae hyalinae vel membranaceae polisulae margine sericeo- ciliatae apice acutae vel leviter bilobae breviaristatae. Fructificationes glumas fere aequantes obovoideo-ellipsoideae cum rostro 2.5-3 mm longae 1.25-1.5 mm latae teretes trisuleatae fulvae apice abrupte contractae, rostro breyi conico 2/3 mm longo 1/3 mm lato pubescente, stigmatibus 3. Squamellae hypogynae 3 orbiculato-ovatae margine pilis albis dense ciliatae. [details]
bracteis panicula sua multo brevioribus; paniculae partiales inferiores 2 mascu-lae, ceterae foemineae, ramis ramulisque gracilibus pendulis, bracteolis vaginiformis. Spiculae masculae solitariae vel geminae 3 mm longae anguste ellipticae ; _glumae plures ellipticae acutae adpresse hispido-pubescentes ; stamina plerum- que 2. Spiculae foemineae solitariae uniflorae maturitate ellipsoideae 3.5 mm - longae fulvo-brunneae; glumae imbricatae circiter 6, superiores late ellipticae ~ 8mm longae vix 2 mm latae hyalinae vel membranaceae polisulae margine sericeo- ciliatae apice acutae vel leviter bilobae breviaristatae. Fructificationes glumas fere aequantes obovoideo-ellipsoideae cum rostro 2.5-3 mm longae 1.25-1.5 mm latae teretes trisuleatae fulvae apice abrupte contractae, rostro breyi conico 2/3 mm longo 1/3 mm lato pubescente, stigmatibus 3. Squamellae hypogynae 3 orbiculato-ovatae margine pilis albis dense ciliatae. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. New York Bot. Gard. 12(3): 44 1965 to Mem. New York Bot. Gard....
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. New York Bot. Gard. 12(3): 44 1965 to Mem. New York Bot. Gard. 12(3): 44 (1965), 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. Lagenocarpus pendulus T.Koyama. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679440 on 2025-09-13
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Koyama, T.; Maguire, B. (1965). The botany of the Guayana Highlands 6. Cyperaceae - Lagenocarpeae. Memoirs of the New York Botanical Garden, 12(1): 8-54.
page(s): 44 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 44 [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
Holotype US 00087086, geounit Colombia [details]
From editor or global species database
Description Rhizoma crassiusculum decumbenti-ascendens usque ad 8 em longum 17 mm crassum fibris fusco-brunneis vestitum. Folia in majore parte radicalia et 2 vel 3 superiora caulina; laminae anguste lineares 40-65 cm longae 3-5 mm lataeplicato-planae rigidulae supra minutissime verruculosae ad apicem acutissimam sensim attenuantes subtus pallidiores et plerumque puberulentes; vaginae 2-3 em longae sparse puberulentes mox glabrae apicem versus brunneotinctae, contraligula rotundo-deltoidea 2-3 mm longa, ciliata. Culmus solitarius centralis 80-100 em altus gracilescens obtuse trigonus facie canaliculatus apice puberulens basi mox glaber. Inflorescentia 30-60 em longa apice cernua fasciculato-paniculata subeontigua vel plus minus interrupta, axe ramisque pubesulentibus,bracteis panicula sua multo brevioribus; paniculae partiales inferiores 2 mascu-lae, ceterae foemineae, ramis ramulisque gracilibus pendulis, bracteolis vaginiformis. Spiculae masculae solitariae vel geminae 3 mm longae anguste ellipticae ; _glumae plures ellipticae acutae adpresse hispido-pubescentes ; stamina plerum- que 2. Spiculae foemineae solitariae uniflorae maturitate ellipsoideae 3.5 mm - longae fulvo-brunneae; glumae imbricatae circiter 6, superiores late ellipticae ~ 8mm longae vix 2 mm latae hyalinae vel membranaceae polisulae margine sericeo- ciliatae apice acutae vel leviter bilobae breviaristatae. Fructificationes glumas fere aequantes obovoideo-ellipsoideae cum rostro 2.5-3 mm longae 1.25-1.5 mm latae teretes trisuleatae fulvae apice abrupte contractae, rostro breyi conico 2/3 mm longo 1/3 mm lato pubescente, stigmatibus 3. Squamellae hypogynae 3 orbiculato-ovatae margine pilis albis dense ciliatae. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Mem. New York Bot. Gard. 12(3): 44 1965 to Mem. New York Bot. Gard. 12(3): 44 (1965), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Translation The rhizome is rather thick and decumbent-ascending, reaching up to 8 cm long and 17 mm thick, covered with brownish fibers. The leaves are mostly basal with 2 or 3 upper stem leaves; the leaf blades are narrowly linear, 40-65 cm long and 3-5 mm wide, folded-flat, rigid above, minutely warty towards the sharply pointed tip, paler below and mostly pubescent; the sheaths are 2-3 cm long, sparsely pubescent and soon glabrous towards the apex, brownish-tinted, with 2-3 mm long, ciliolate round-deltate ligules. The solitary central stem is 80-100 cm tall, slender, obtusely triangular in cross-section, canaliculated, pubescent at the apex and soon glabrous at the base. The inflorescence is 30-60 cm long, nodding at the tip with a fasciculated-panicle that is somewhat contiguous or more or less interrupted, with a pubescent axis and branches, and its bracts much shorter than the panicle; the lower partial panicles are male, the others female, with slender, pendulous branches and branchlets, and bracteoles that are sheath-like. Male spikelets are solitary or in pairs, 3 mm long, narrowly elliptical; several acute elliptical glumes pressed and covered with bristly hairs; usually 2 stamens. Female spikelets are solitary, uniflorous, and when mature, ellipsoidal, 3.5 mm long, tawny-brown; imbricate glumes are about 6, upper ones broadly elliptical, around 8 mm long, barely 2 mm wide, hyaline or membranous with silky-ciliate margins, acute or slightly lobed at the apex. Fruiting glumes are nearly equaling the obovate-ellipsoidal shape with a beak 2.5-3 mm long, 1.25-1.5 mm wide, rounded and three-angled, tawny, abruptly contracted at the tip, with a short conical beak 2/3 mm long and 1/3 mm wide, pubescent, with 3 stigmas. Hypogynous scales are 3, orbicular-ovate, densely ciliate with white hairs at the margin. [details]
To Biodiversity Heritage Library (2 publications)
To European Nucleotide Archive, ENA (Lagenocarpus pendulus)
To GenBank (1 nucleotides; 0 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Lagenocarpus pendulus US2058445 type 1)
To European Nucleotide Archive, ENA (Lagenocarpus pendulus)
To GenBank (1 nucleotides; 0 proteins)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Lagenocarpus pendulus US2058445 type 1)
From editor or global species database
Hosted externally
