Aportaciones al conocimiento del género Salix L. (Salicaceae) en la provincia de León (NW España)

González, Tomás Emilio Díaz; García, Félix Llamas

doi:10.24310/actabotanicaabmabm.v12i.9740

abm

1987

DOI: 10.24310/actabotanicaabmabm.v12i.9740

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Aportaciones al conocimiento del género Salix L. (Salicaceae) en la provincia de León (NW España)

Tomás Emilio Díaz González¹,

Félix Llamas García²

Abstract: Los autores han reconocido en el territorio estudiado 5 táxones del subgénero Salix y 7 del subgénero Vetrix así como 16 híbridos. Consideran a S. neotricha una especie independiente de S. fragilis. Se describen los siguientes híbridos: Salix x expectata, Salix x pormensis, Salix x viridifolia, Salix x pseudosalvifolia, Salix x longissima, Salix x pseudoelaeagnos, Salix x multidentata y Salix x rijosa. De cada taxon se aporta la distribución en la provincia de León en base a la cartografía UTM d… Show more

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Salixtaxonomy in Europe – problems, interpretations, observations

Rechinger¹

1992

Proc., Sect. B Biol. sci.

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I want to give a brief resumé of the reasons why the taxonomic study ofSalixis so notoriously difficult. As long ago as 1737, Linné inFlora Lapponicawrote: “Hunclocum sibi postulat Salicum familia, qui si ulla in Botanicis obscura, haec sane maxima”. The phrase “crux et scandalum botanicorum” has been quoted time and again.(1) All willows are dioecious, developing male and female flowers in different individuals.(2) Flowers in many species are precocious, the flowers appearing before the leaves.(3) There is a tendency for the current year's terminal and past year's lateral branches to differ in indumentum, leaf shape and leaf sequence.

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Salixtaxonomy in Europe – problems, interpretations, observations

Rechinger¹

1992

Proc., Sect. B Biol. sci.

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A global view on the riparian forests withSalix neotrichaandPopulus albain the Iberian Peninsula (Portugal and Spain)

Costa

Neto

Capelo³

et al. 2011

Plant Biosystems - An International Journal Dealing with all As

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This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan, sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

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Floodplain forests of the Iberian Peninsula: Vegetation classification and climatic features

Biurrun

Campos

García‐Mijangos

et al. 2016

Applied Vegetation Science

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Aims To produce a formalized classification of floodplain forests in the Iberian Peninsula and to assess their main bioclimatic gradients. Location Iberian Peninsula. Methods A data set with more than 3000 vegetation plots of floodplain forests was compiled from vegetation‐plot databases, while climatic data were derived from a digital climatic atlas. After filtering of plots according to their area and geographic stratification, 1892 plots were used to build a typology from association to order level using multivariate classification methods (Fuzzy C‐means, agglomerative hierarchical clustering). The phi fidelity index was used to determine the diagnostic species of the syntaxa in the proposed classification. Main climatic gradients were explored using non‐metric multidimensional gradient analysis, and ANOVA was carried out in order to define the bioclimatic features of Iberian floodplain forests. Results A total of 41 floodplain forest associations were distinguished for the Iberian Peninsula, grouped in nine suballiances, four alliances and two orders. Mediterraneity (summer aridity) was the main climatic driver, as it separates the temperate floodplain forests of the order Alno‐Fraxinetalia from the Mediterranean forests of the Populetalia albae. Continentality and precipitation were mainly relevant at alliance level, as they separated both the temperate alliances Alnion and Hyperico‐Alnion, the latter more oceanic, and the Mediterranean alliances Populion and Osmundo‐Alnion, the latter from more rainy areas. Temperature was an important driver at association level, as the associations included in the same suballiance or alliance differed regarding their thermicity index. Conclusions Our study develops the first formalized classification of Iberian floodplain forests and provides their bioclimatic diagnosis. One new alliance, Hyperico‐Alnion, is proposed for floodplain forests of the Cantabrian watershed. Mediterraneity, continentality and precipitation drive floodplain forest diversity at broad scale, while temperature is the main bioclimatic driver at fine scale. The proposed classification provides the scientific basis for the conservation of this habitat type, with high conservation priority, in southern Europe.

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Aportaciones al conocimiento del género Salix L. (Salicaceae) en la provincia de León (NW España)

Cited by 6 publications

References 0 publications

Salixtaxonomy in Europe – problems, interpretations, observations

Salixtaxonomy in Europe – problems, interpretations, observations

A global view on the riparian forests withSalix neotrichaandPopulus albain the Iberian Peninsula (Portugal and Spain)

Floodplain forests of the Iberian Peninsula: Vegetation classification and climatic features

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