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Choszczno, Poland

Koopman J.,Ul. Kochanowskiego 27 | Smith C.,11 Woods Close | Blackstock N.,City of Liverpool College
Nordic Journal of Botany | Year: 2014

The type of Carex filiformis is an illustration, which is pluri-interpretable and therefore an epitype is designated here. As epitypified, C. filiformis L. becomes synonymous with Carex montana L. (the latter getting priority), and therefore not the correct name for Carex tomentosa L. as stated by Nelmes and other authors. Carex tomentosa is the accepted name for the taxon sometimes referred to as C. filiformis. © 2014 Nordic Society Oikos.

Jimenez-Mejias P.,Pablo De Olavide University | Jimenez-Mejias P.,Washington State University | Hilpold A.,Naturmuseum Sudtirol | Frajman B.,University of Innsbruck | And 6 more authors.
Willdenowia | Year: 2014

Carex cespitosa L. (Cyperaceae) has been traditionally regarded as widespread in Europe, being reported from most countries. However, its distribution is currently overestimated due to the ambiguous use of the name C. cespitosa, together with frequent taxonomic confusion, mainly with the closely related C. elata All. and C. nigra (L.) Reichard. We present a critical revision of the distribution of C. cespitosa in Europe W of the former USSR, based on herbarium material and literature.We confirm the presence of the species in 19 European countries, while its occurrence is considered as doubtful in another five countries. Data pertinent to the ecology and conservation status of the species in the different countries are also provided. It is considered threatened or nearly so in at least eight countries. Hybrids with C. acuta L., C. elata and C. nigra are morphologically characterized and discussed. Although chorological revisions of the European flora are commonly considered of relatively minor scientific relevance, the situation detected by our survey of C. cespitosa reveals the importance of, and need for, these basic works for the accurate knowledge of many species, especially for subsequent works on conservation biology and biogeography. © 2014 BGBM Berlin-Dahlem.

Koopman J.,Ul. Kochanowskiego 27 | Poelstra W.,Buizerd 7 | Zijlstra O.O.G.,Lekstraat 44
Gorteria: Tijdschrift voor Onderzoek aan de Wilde Flora | Year: 2013

In late April 2012, Carex colchica J.Gay was found growing along sandy stretches of roadside over 10 km in length, between Hardenberg (Province of Overijssel) and Coevorden (Province of Drenthe). The species was very abundant in these stretches. Due to their conspicuously straw-coloured inflorescences present at that time, the plants were easy to spot by car. The massive occurrence of C. colchica, which had hitherto been considered rare in the Netherlands, called for further investigation of the actual distribution of this species in the central and eastern regions of this country.

Koopman J.,Ul. Kochanowskiego 27
Gorteria: Tijdschrift voor Onderzoek aan de Wilde Flora | Year: 2014

Hitherto, ten introduced Carex taxa (Cyperaceae) have been found in the Netherlands. For each taxon the introduction history is treated in detail. Eight species originate from North America, among which Carex bebbii and C. scoparia, which are both new to the Netherlands.

For several decades during which Carex cuprina (Sándor ex Heuff.) T. Nendtv. ex A. Kern. has been regarded as conspecific with C. otrubae Podp. there has been discussion about what is the correct application of the name C. cuprina. It is demonstrated here that the original material of the basionym of C. cuprina, i.e. C. nemorosa var. cuprina Sándor ex Heuff. on sheet BP604990 in the herbarium of the Hungarian Natural History Museum (BP) in fact belongs to the species currently known as C. leersii F. W. Schultz, as T. Egorova already made clear during her visit to that herbarium in 2003. The name C. nemorosa var. cuprina is lectotypified with this specimen. Therefore the correct name for what has been variously called C. cuprina or C. otrubae is C. otrubae, whereas C. cuprina is an earlier name for C. leersii. The name C. leersii is already conserved against the earlier homonym C. leersii Willd. and the simultaneously published heterotypic synonym C. chabertii F. W. Schultz. It is suggested here that C. leersii should be proposed for conservation also against C. cuprina. © 2015 BGBM Berlin-Dahlem.

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