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Veenendaal, Netherlands

Tournefort published several Rubus taxa in his Institutiones and its Corollarium. Most of these have been validated by authors in the second half of the eighteenth century. Tournefort's species have been investigated, and most of them identified and typified here, and the later validations have been investigated as well. Some of the publications will have impact on present day nomenclature. The most significant are the identifications of R. aetnicus Cupani ex Weston with R. canescens auct. non DC (=R. tomentosus Willd. non Borkh.) and of R. creticus Tourn. ex L. with R. sanctus Schreb., which has to be regarded as co-specific with R. ulmifolius Schott. Next to this, the identification of R. polonicus Barr. ex Weston as R. nessensis Hall, and the publications of R. vulgaris Tourn. ex J. de Vries and R. laciniatus (Tourn. ex Weston) Tollard are remarkable. Since the latter is a form of R. ulmifolius a new combination is published: Rubus ulmifolius f. laciniatus (Tourn. ex Weston) A.Beek., comb. nov., stat. nov. Because the series which is presently named Canescentes H.E. Weber turned out to have no correct name, it is published here again as the series Argyrophylli A.Beek, ser. nov. © 2016, Publications Scientifiques du Muséum national d'Histoire naturelle, Paris.

Van De Beek B.,Petenbos 8
Gorteria: Tijdschrift voor Onderzoek aan de Wilde Flora | Year: 2014

Identification key for all Dutch bramble species (Rubus L. subg. Rubus) that are recognised to occur in the Netherlands by Van de Beek and collaborators in this issue of Gorteria1, as well as for the species of the other subgenera of the genus Rubus. Roman numerals used in the main key refer to subkeys for infrageneric taxa in the second section of this systematic key.

The publication of the checklist of the Dutch brambles required a considerable number of taxonomic and nomenclatorial decisions. This article provides an argumentation for the choices that are made. Because many of these are of international interest the main decisions are summarized in English below.

This article presents results of an investigation of the genus Rubus sect. Corylifolii in the Netherlands. Some new taxa are described: - New section: Subidaei (Focke) A. Beek. Because the Subidaei have a different relation to R. caesius than the section Corylifolii, an independent status must be preferred. - New names of series: series Clivicola A. Beek, replacing the incorrect name Subsylvatici (Focke) Focke (1914), non Boulay (1895); series Viatici A. Beek, replacing the incorrect name Subthyrsoidei (Focke) Focke, non Hallier & R. Wohlfahrt (1892). - New series: Ferociores A. Beek, splitting off from the series Clivicola plants with a very glandular inflorescence. - New species: Rubus schipperi A. Beek; R. paludosus A. Beek; R. favillatus A. Beek; R. luticola A. Beek. Further, the identity of R. corylifolius Sm., and consequently the infrageneric taxa for which it is the type species, is clarified. Rubus corylifolius is validly published by Smith in English Botany 715 by reference to earlier descriptions. He accepts the taxon and his remark on an intended publication refers to an image, not to the acceptance of the species. The only indisputable reference in his protologue is to Schmidel's Icones. The picture in this work can serve as a lectotype which must replace the neotype that Weber selected. This picture resembles R. lobatidens, but is not identical. The depicted plant is clearly a member of the Sepincoli sensu Weber (non Focke, because Weber excludes the type, R. dumetorum Weihe, from his Sepincoli). Thus the correct name of the Sepincoli sensu Weber must be Corylifolii (Lindl.) Focke.

Van De Beek B.,Petenbos 8 | Bijlsma R.-J.,Wageningen University | Haveman R.,Dienst Vastgoed Defensie | Meijer K.,Nieuweweg 32 | And 3 more authors.
Gorteria: Tijdschrift voor Onderzoek aan de Wilde Flora | Year: 2014

The taxonomy and distribution of brambles (Rubus L. subgenus Rubus) are well-known in northwestern Europe due to herbarium studies and extensive field work from the 1970s onwards. Most brambles are stabilized apomictic species that form fruits without prior fertilization. Therefore, offspring is genetically identical with the mother plant. In the Netherlands, the study of brambles did not start until 1900, with a relatively active period occuring after World War II. This resulted in the publication of Rubi Neerlandici by W. Beijerinck in 1956, an overview based on the artificial species circumscription of H. Sudre (Rubi Europae; 1908-1913). Modern research, based on the study of type material supplemented with field work began in the 1970s and lead to the recognition of several newly described regional species as well as new names for misapplied species. Most bramble experts in Europe agree on a species circumscription that includes a geographic constraint: taxa with a range less than 50 km in diameter are not described as species. We adhere to this view as well. The Dutch checklist of subgenus Rubus comprises 191 species in 4 sections: Rubus ('Rubus fruticosus agg.'; 147 species), Corylifolii Lindl. ('Rubus corylifolius agg.'; 34 species), Caesii Lej. & Courtois (2 species) and Subidaei (Focke) A. Beek (8 species). The latter section includes stabilized species with Rubus idaeus L. as an ancestor. Nomenclatural aspects of the Dutch taxa and the description of some new Corylifolii taxa are dealt with in accompanying papers. All taxa on the checklist are provided with Dutch names, including sections, subsections and series. Since range size is taxonomically important, this feature has been classified and assigned to each species as W1 (very widespread; range diameter > 1500 km), W2 (widespread; 500-1500 km), R1 (supraregional; 250-500 km) or R2 (regional; 50-250 km). The Dutch checklist contains 97 regional species (51%); only 32 species (17%) are very widespread. All digitally available distribution data for species of Rubus subgenus Rubus (excluding Rubus caesius L.) have been merged into a database, currently comprising about 43,000 records, including 37,000 with an accuracy of one kilometer or better. National rarity of species (Rubus caesius excluded) has been coded according to Dutch Red List criteria based on the number of occupied 5×5 km-squares. Almost 80 species are nationally very rare, 60 rare, 25 rather rare and about 20 rather common or common. Very common species are absent from the section Rubus, which is not only caused by the large proportion of regional species, but also by the low frequency of brambles on clay and peat soils in the western and northern parts of the country. Regional occurrence is expressed as percentage occupied relative to the total number of 5×5 km-squares for each flora district. Hotspots of species richness with more than 40 species per 5×5 km-square occur in old woodland landscapes in physiogeographic gradients with sandy and loamy soils. The national species richness in a European context, the high numbers of regional species, and the occurrence of hotspots of bramble diversity emphasize the central position of the Netherlands within the (sub) atlantic range of brambles in Europe.

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