Eleocharis reznicekii (cyperaceae), a new species from the mexican high plateau
Eleocharis reznicekii (Cyperaceae, subg. Eleocharis, series Eleocharis), is describedand illustrated. It is morphologically intermediate between E. densa and two species ofEleocharis subseries Eleocharis (E. macrostachya and E. palustris). The new species differsin a combination of characters includ...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | México |
| Institución: | Instituto Politécnico Nacional |
| Repositorio: | Redalyc-IPN |
| OAI Identifier: | oai:redalyc.org:57408103 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57408103 |
| Access Level: | acceso abierto |
| Palabra clave: | Biología Mexico Durango taxonomy Cyperaceae Eleocharis |
| Sumario: | Eleocharis reznicekii (Cyperaceae, subg. Eleocharis, series Eleocharis), is describedand illustrated. It is morphologically intermediate between E. densa and two species ofEleocharis subseries Eleocharis (E. macrostachya and E. palustris). The new species differsin a combination of characters including conspicuously compressed culms (3 to over 5 timeswider than thick) and stylopodium sessile on a thin annular base. Eleocharis reznicekiidiffers additionally from E. densa by having relatively lax spikelets, mostly bifid styles, andachenes almost smooth at 30x. From E. macrostachya and E. palustris it is distinguished inits oblong to linear-oblong spikelets, the proximal floral scale clasping only 1/3 to slightlymore than 1/2 of the culm, and the proximal plus 1-2(3) subproximal scales without a flower.Eleocharis reznicekii is known only from the state of Durango, in the Mexican high plateauand piedmont of the Sierra Madre Occidental. |
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