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| Registros recuperados: 47 | |
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| Wheeler,Gerald A.. |
| A new species of Uncinia (Cyperaceae), U. austroamericana, is described and illustrated from austral South America and from the Tristan da Cunha archipelago in the south-Atlantic Ocean. This species grows in persistently wet, base-poor sites, particularly in Sphagnum bogs, and is known from southern Patagonia, Tierra del Fuego, and from the largest island of the Tristan da Cunha group. It differs both morphologically and ecologically from the similar-appearing U. macrolepis, a minerotrophic species best known from moist depressions in grasslands. The new species differs morphologically from U. macrolepis by possessing achenes that, when mature, are pale-colored and conspicuously-thickened at the apex and, also, by having more or less loosely-flowered... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Argentina; Chile; Tristan da Cunha; Cyperaceae; Uncinia. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932005000100017 |
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| Wheeler,Gerald A.. |
| The holotype of Carex sagei comes from central Chile, and this name has long been treated as a synonym of C. fuscula. Recent study indicates, however, that C. sagei is referrable to Carex section Ceratocystis, whereas C. fuscula belongs in section Spirostachyae. It is also demonstrated that C. sagei is the correct name for plants currently called C. barrosii. Carex sagei is known from Argentina, Chile, and the Falkland Islands (Islas Malvinas), where it frequents hydric habitats, such as marshes, wet meadows, and the margins of lakes, from near sea level to about 850 m. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carex; Cyperaceae; Ceratocystis; South America; Taxonomy. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932007000200010 |
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| Vrijdaghs, A.; Goetghebeur, P.; Smets, E.; Muasya, A.. |
| Background and Aims In 1976 the monotypic genus Hellmuthia was placed in the Hypolytreae s.l., but was subsequently ascribed to the Mapanioideae, tribe Chrysitricheae, mainly because of the presence in Hellmuthia of two lateral, mapanioid-like floral scales with ciliated keels, the anatomy of the nutlet, the embryo and the inflorescence. Recently, based on cladistic analyses and supported by pollen ontogenetic evidence, Hellmuthia was transferred to a Cyperaceae, tribe Cypereae, clade mainly consisting of Ficinia and Isolepis. In this study, the floral ontogeny in Hellmuthia was investigated and compared with the floral ontogeny in Paramapania, with special attention for the floral scales. Methods Freshly collected inflorescences of Hellmuthia... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Floral scales; Paramapania; Floral ontogeny; Cyperaceae; Hellmuthia; SEM; Homology. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/407327 |
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| Huygh, W.; Schouppe, D.; Larridon, I.; Simpson, D.A.; Goetghebeur, P.. |
| Kyllinga cataphyllata, a new species of Cyperaceae from the highlands of Western and Central Africa, is described and illustrated. This new species is easy recognized by the ascending rhizome densely covered by large cataphylls. The head-like inflorescence consisting of a single spike with spikelets made up of two to three glumes and only one flower, and the glumes characterized by a spinulose greenish keel. It is closely related to K. brevifolia, but differs in having conspicuous cataphylls, glumes with a strongly toothed keel and an asymmetrical pedicel to the nutlet. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Africa; Cyperaceae; Highland flora; Kyllinga. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/525316 |
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| Simpson, D.A.; Muthama Muasya, A.; Alves, M.V.; Bruhl, J.J.; Dhooge, S.; Chase, M.W.; Furness, C.A.; Ghamkhar, K.; Goetghebeur, P.; Hodkinson, T.D.; Marchant, A.D.; Reznicek, A.A.; Nieuwborg, R.; Roalson, E.H.; Smets, E.; Starr, J.R.; Thomas, W.W.; Wilson, K.L.; Zhang, X.. |
| Since the Monocots II meeting in 1998, significant new data have been published that enhance our systematic knowledge of Cyperaceae. Phylogenetic studies in the family have also progressed steadily. For this study, a parsimony analysis was carried out using all rbcL sequences currently available for Cyperaceae, including data for two new genera. One of the four subfamilies (Caricoideae) and seven of the 14 tribes (Bisboeckelereae, Cariceae, Cryptangieae, Dulichieae, Eleocharideae, Sclerieae, Trilepideae) are monophyletic. Subfamily Mapanioideae and tribe Chrysitricheae are monophyletic if, as the evidence suggests, Hellmuthia is considered a member of Cypereae. Some other features of our analysis include: well-supported Trilepideae and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cyperaceae; Monocotyledons; Phylogeny; RbcL; Sequence; 42.48. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/414071 |
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| Koopman, J.; Więcław, H.. |
| All the material of the section Phaestoglochin that is kept in the herbarium of Naturalis Biodiversity Center in Leiden (L), in total 817 collections, has been revised in order to get a better understanding and a more complete overview of the occurrence of the four native species of this section in the Netherlands: Carex divulsa, C. leersii, C. pairae and C. spicata. Carex muricata s. str. proves to be not native in the Netherlands. A key is provided for the identification of (Dutch) plants belonging to this section. Al het materiaal van de sectie Phaestoglochin in het herbarium van Naturalis Biodiversity Center te Leiden (L), in totaal 817 collecties, is gerevideerd om zo een beter begrip en een completer beeld van het voorkomen van de vier inheemse... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Carex divulsa; Carex leersii; Carex muricata; Carex pairae; Carex spicata; Cyperaceae; Phaestoglochin. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/639330 |
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| Koopman, J.; Więcław, H.. |
| Al het materiaal van de sectie Ammoglochin in het herbarium van Naturalis Biodiversity Center te Leiden (L), in totaal 1068 collecties, is gerevideerd om zo een beter begrip en een completer beeld van het voorkomen van de vijf inheemse soorten van deze sectie in Nederland te krijgen. Een sleutel is toegevoegd om (Nederlandse) planten van deze sectie te kunnen determineren. All the material of the section Ammoglochin that is kept in the herbarium of Naturalis Biodiversity Center in Leiden (L), in total 1068 collections, has been revised in order to get a better understanding and more complete overview of the occurrence of the five native species of this section in the Netherlands. A key is provided for the identification of (Dutch) plants belonging to this... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ammoglochin; Inheemse soorten; Cyperaceae; Carex; Nederland. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/614096 |
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| Groth,D.. |
| O principal objetivo deste trabalho foi demonstrar a possibilidade da separação taxonômica das seis espécies estudadas, baseada nas características morfológicas externas das unidades de dispersão associadas com a forma, o tipo e a posição do embrião em relação ao tecido de reserva. Foram também usadas as estruturas associadas, das unidades de dispersão, as quais são da maior importância na classificação e identificação das espécies desta família. Foram feitas ilustrações e descrições das plantas e unidades de dispersão pertencentes às espécies de: Carex sororia Kunth., Cyperus ferax L.C. Rich. , Eleocharis genicu lata (L. ) Roem. et Schult., Eleochar is sellowiana Kunth., Fimbristylis autumnalis (L.) Roem. et Schult. e Fimbristylis diphylla (Retz.) Vahl.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Unidades de dispersão; Morfologia; Invasora; Cyperaceae. |
| Ano: 1983 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581983000100005 |
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| Panozzo,L.E.; Agostinetto,D.; Vignolo,G.; Galon,L.; Ferreira,E.A.; Silva,L.J.; Moraes,P.V.D.. |
| As espécies do gênero Cyperus, pertencentes à família Cyperaceae, destacam-se entre as principais plantas daninhas nas regiãos orizícolas do Rio Grande do Sul (RS). Objetivou-se com este trabalho avaliar a diversidade de Cyperus ferax nas regiões orizícolas do RS e os níveis de sensibilidade dessa espécie ao herbicida penoxsulam. Para isso, conduziu-se experimento em casa de vegetação, na Faculdade de Agronomia Eliseu Maciel, em delineamento experimental completamente casualizado, com quatro repetições. Cada unidade experimental (parcela) foi composta por vaso com capacidade de 0,55 dm³ de solo, onde foram estabelecidas sete plantas. Os tratamentos foram arranjados em esquema fatorial; o fator A avaliou os locais de coleta (origem) de sementes de C. ferax,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Controle químico; Cyperaceae; Oryza sativa; Planta daninha. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000200020 |
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| Registros recuperados: 47 | |
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