Cyperaceae taxon details
Lagenocarpus sericeus H.Pfeiff.
1679443 (urn:lsid:marinespecies.org:taxname:1679443)
accepted
Species
terrestrial
Pfeiffer, H. (1922). Additamenta ad cognitionem generis Lagenocarpus. III. Species numerosae ad exemplaria imprimis in herbariis diversis servata definitae. De novis et criticis speciebus generum saepe ignotorum Scleriearum. <em>Repertorium Specierum Novarum Regni Vegetabilis. Centralblatt für Sammlung und Veroffentlichung von Einzeldiagnosen neuer Pflanzen.</em> 18., available online at https://www.biodiversitylibrary.org/page/732713#page/1/mode/1up
page(s): 83 [details]
page(s): 83 [details]
Lectotype C 10010529, geounit Brazil
Lectotype C 10010529, geounit Brazil [details]
Description Rhizoma obliquum abbreviatum.crassum breviter ramosum dense caespitosum. Culmus centralis ad 90 cm
altus inferne validus...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 18: 83 1922 to Repert. Spec. Nov. Regni...
altus inferne validus...
Description Rhizoma obliquum abbreviatum.crassum breviter ramosum dense caespitosum. Culmus centralis ad 90 cm
altus inferne validus e, 5 mm latus sursum gracilior obtuse compresso-triqueter ad apicem usque densem sericeo-villosum foliis pluribus basilaribus approximatis obsitus, sursum parce remote foliatus. Folia basilaribus fasciculata culmo breviora late linearia 5—11 mm lata plana acuminata rigidula glaucescentia nervus 1 prominentibus percursa dense 'lanato-velutina sericeaque, margine laevibus, vaginae longae subquadratae fuscae striatae ore porrecta accumbentibus, deorsum hirsutae utrinque emarginatae explanatae, inferiores fuscescentes dissolutae. Folia culmea 12—96 em longa, 2—5 mm lata, ut caetera villosa. Inflorescentia decapitulata' verticillata interrupta e capitulis secundariis (15) globosis densissimis bracteis setaceis decrescentibus longe vaginantibus suffultis composita. Capitulae partialis 2—15 mm in diametro quaternae distantes inaequaliter pedunculatae erectae, e paniculis 4-numerosis compositae; pedunculi validi compressiusculi dense. villosi, rhachis hispida capitulo altiora. Spiculae unisexuales (propriae 2—3 et plures sub singula bracteola) in spicas breves oligostachyas subsessilibus strictas pungenti-bracteatas dense congestae, ferrugineae, masculinae praevalentes lineares, foemineae suboblongae acuminatae. Bracteolae foemineae duae exteriores masculis similis, interiores minores papyraceae subacutae spiculas non superantes. Squamae pallide virentes v. fuscescentes demum ferrugineae subcarinatae in carina hispido-pilosae in acumen subulatum pungens productae, 2 sub- lineares acutae, 9 lanceolato- vel late ovatae. Nux (in statu juvenili)! squamis paulo brevior oblongo-ovata c. 21, mm longa lutea v. albescens verrucoso-foveolata, foveolis multis sat profundis insculpta, vertice in processum subcrassiusculum apice subtruncatum attenuata. [details]
altus inferne validus e, 5 mm latus sursum gracilior obtuse compresso-triqueter ad apicem usque densem sericeo-villosum foliis pluribus basilaribus approximatis obsitus, sursum parce remote foliatus. Folia basilaribus fasciculata culmo breviora late linearia 5—11 mm lata plana acuminata rigidula glaucescentia nervus 1 prominentibus percursa dense 'lanato-velutina sericeaque, margine laevibus, vaginae longae subquadratae fuscae striatae ore porrecta accumbentibus, deorsum hirsutae utrinque emarginatae explanatae, inferiores fuscescentes dissolutae. Folia culmea 12—96 em longa, 2—5 mm lata, ut caetera villosa. Inflorescentia decapitulata' verticillata interrupta e capitulis secundariis (15) globosis densissimis bracteis setaceis decrescentibus longe vaginantibus suffultis composita. Capitulae partialis 2—15 mm in diametro quaternae distantes inaequaliter pedunculatae erectae, e paniculis 4-numerosis compositae; pedunculi validi compressiusculi dense. villosi, rhachis hispida capitulo altiora. Spiculae unisexuales (propriae 2—3 et plures sub singula bracteola) in spicas breves oligostachyas subsessilibus strictas pungenti-bracteatas dense congestae, ferrugineae, masculinae praevalentes lineares, foemineae suboblongae acuminatae. Bracteolae foemineae duae exteriores masculis similis, interiores minores papyraceae subacutae spiculas non superantes. Squamae pallide virentes v. fuscescentes demum ferrugineae subcarinatae in carina hispido-pilosae in acumen subulatum pungens productae, 2 sub- lineares acutae, 9 lanceolato- vel late ovatae. Nux (in statu juvenili)! squamis paulo brevior oblongo-ovata c. 21, mm longa lutea v. albescens verrucoso-foveolata, foveolis multis sat profundis insculpta, vertice in processum subcrassiusculum apice subtruncatum attenuata. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 18: 83 1922 to Repert. Spec. Nov. Regni...
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 18: 83 1922 to Repert. Spec. Nov. Regni Veg. 18: 83 (1922), 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 sericeus H.Pfeiff.. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1679443 on 2025-09-13
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Nomenclature
original description
Pfeiffer, H. (1922). Additamenta ad cognitionem generis Lagenocarpus. III. Species numerosae ad exemplaria imprimis in herbariis diversis servata definitae. De novis et criticis speciebus generum saepe ignotorum Scleriearum. <em>Repertorium Specierum Novarum Regni Vegetabilis. Centralblatt für Sammlung und Veroffentlichung von Einzeldiagnosen neuer Pflanzen.</em> 18., available online at https://www.biodiversitylibrary.org/page/732713#page/1/mode/1up
page(s): 83 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 83 [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 C 10010529, geounit Brazil [details]
From editor or global species database
Description Rhizoma obliquum abbreviatum.crassum breviter ramosum dense caespitosum. Culmus centralis ad 90 cmaltus inferne validus e, 5 mm latus sursum gracilior obtuse compresso-triqueter ad apicem usque densem sericeo-villosum foliis pluribus basilaribus approximatis obsitus, sursum parce remote foliatus. Folia basilaribus fasciculata culmo breviora late linearia 5—11 mm lata plana acuminata rigidula glaucescentia nervus 1 prominentibus percursa dense 'lanato-velutina sericeaque, margine laevibus, vaginae longae subquadratae fuscae striatae ore porrecta accumbentibus, deorsum hirsutae utrinque emarginatae explanatae, inferiores fuscescentes dissolutae. Folia culmea 12—96 em longa, 2—5 mm lata, ut caetera villosa. Inflorescentia decapitulata' verticillata interrupta e capitulis secundariis (15) globosis densissimis bracteis setaceis decrescentibus longe vaginantibus suffultis composita. Capitulae partialis 2—15 mm in diametro quaternae distantes inaequaliter pedunculatae erectae, e paniculis 4-numerosis compositae; pedunculi validi compressiusculi dense. villosi, rhachis hispida capitulo altiora. Spiculae unisexuales (propriae 2—3 et plures sub singula bracteola) in spicas breves oligostachyas subsessilibus strictas pungenti-bracteatas dense congestae, ferrugineae, masculinae praevalentes lineares, foemineae suboblongae acuminatae. Bracteolae foemineae duae exteriores masculis similis, interiores minores papyraceae subacutae spiculas non superantes. Squamae pallide virentes v. fuscescentes demum ferrugineae subcarinatae in carina hispido-pilosae in acumen subulatum pungens productae, 2 sub- lineares acutae, 9 lanceolato- vel late ovatae. Nux (in statu juvenili)! squamis paulo brevior oblongo-ovata c. 21, mm longa lutea v. albescens verrucoso-foveolata, foveolis multis sat profundis insculpta, vertice in processum subcrassiusculum apice subtruncatum attenuata. [details]
Taxonomic remark Source in seed data: wcs Update namepublishedIn from Repert. Spec. Nov. Regni Veg. 18: 83 1922 to Repert. Spec. Nov. Regni Veg. 18: 83 (1922), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Translation The rhizome is an abbreviated, thick, briefly branched dense tuft. The central stem is strong, reaching up to 90 cm in height, 5 mm wide at the base, becoming more slender and obtusely compressed-triangular towards the top, densely covered with silky-woolly leaves, several approximating the base and sparsely leafy above. The basilar leaves are clustered, shorter than the stem, broad linear, 5 to 11 mm wide, flat, acuminate, rigid, glaucous, with one prominent vein densely covered in woolly-silky hairs, with smooth margins, long quadrate brown striped sheaths extending downward, hirsute below, emarginate on both sides, broadened, the lower ones being brownish and dissolved. The stem leaves are 12 to 96 cm long, 2 to 5 mm wide, like the others, hairy. The inflorescence is a decapitated whorled interrupted cluster composed of secondary globose heads (15) densely supported by long tapering bracts.Heads of 2—15 mm in diameter, unequally distant, erect, composed of numerous 4-flowered panicles; the stalks strong, somewhat compressed and dense. The rachis is bristly, higher than the head. The flowers are unisexual (with 2—3 and more below each bract), in short oligostachys, sessile, tightly packed with prickly bracts, rusty, predominantly male linear, and female sub-oblong acuminate. The two outer female bracts are similar to males, while the inner are smaller, papery and acuminate, not surpassing the flowers. The scales are pale green or brownish, ultimately rusty, sub-cornered, formed into a bristly-haired ridge leading to a sharp subulate apex, with 2 sub-linear acute and 9 lanceolate or broadly ovate. The nut (in juvenile state) with scales a little shorter, oblong-ovate about 21 mm long, yellow or whitish, warty-pitted, deeply engraved with many pits, and the apex tapering into a somewhat thickened process with truncated sharp tip. [details]
