Carex disperma Dewey versus Carex loliacea L. (Cyperaceae): distribution dynamics and conservation status in Poland.

Pawlikowski, Paweł

doi:10.5586/asbp.2010.035

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the northeastern part of Poland, the plants of this species are found in five separate forest areas (Borki, Romincka, Białowieża, etc. ) (PAwlikowski, 2010).…”

Section: Introductionmentioning

confidence: 99%

Carex disperma – not yet extinct species in old-growth swampy forests of Lithuania

Uselis¹,

Uselienė²

2012

Botanica Lithuanica

View full text Add to dashboard Cite

Uselis V., Uselienė A., 2012: Carex disperma - not yet extinct species in old-growth swampy forests of Lithuania [Carex disperma - dar neišnykusi pelkinių sengirių rūšis Lietuvoje]. - Bot. Lith., 18(1): 13-18. The paper describes the locality of Carex disperma reaffirmed after a century; the locality is situated in the present territory of the Viešvilė State Strict Nature Reserve. Plants were found in an old swampy spruce forest, which, according to the geobotanical description, corresponds to the Sphagno girgensohnii-Piceetum Polak. 1962 association. The stand is rich in indicator species of an old-growth forest. Twelve Carex disperma individuals, growing in the area of 3 m2, were recorded in 2009. One more locality has recently been found in Utena region, but it has not been published in scientific references yet. Information on other localities of this species in Lithuania is either very old (mid-19th century) or not confirmed by the herbarium specimens.

show abstract

“…In the northeastern part of Poland, the plants of this species are found in five separate forest areas (Borki, Romincka, Białowieża, etc. ) (PAwlikowski, 2010).…”

Section: Introductionmentioning

confidence: 99%

Carex disperma – not yet extinct species in old-growth swampy forests of Lithuania

Uselis¹,

Uselienė²

2012

Botanica Lithuanica

View full text Add to dashboard Cite

show abstract

Carex flava agg. (section Ceratocystis, Cyperaceae) in Poland: taxonomy, morphological variation, and soil conditions

Więcław¹

2014

Biodiversity Research and Conservation

View full text Add to dashboard Cite

Sedges of Carex flava agg., typical of moist or wet habitats, are difficult to classify because of a lack of clear-cut morphological differences between them and the existence of numerous hybrids. This monograph presents results of research conducted in 2007-2012 in various parts of Poland. The plant material consisted of 1852 living specimens of Carex flava agg., collected from 80 localities, and dried specimens from 26 herbaria and from 7 private collections. The analysis involved 45 morphological characters (34 quantitative and 11 qualitative) and 9 soil parameters. Univariate, bivariate, and multivariate statistical methods were used to process the data. The results confirm the taxonomic classification dividing the C. flava group into 4 species: C. flava s.s., C. lepidocarpa, C. demissa, and C. viridula. This classification is based on (i) a high observed level of morphological separation of these taxa, resulting mostly from differences in generative characters, i.e. length of the utricle and its beak, and percentage ratio of beak length to total utricle length; (ii) integrity of the taxa at the sites where they coexist, although some intermediate forms resulting from hybridization are also present; (iii) habitat preferences of the taxa, especially the preference of C. lepidocarpa for calcareous sites and of C. demissa for slightly acidic soils. Thus in Poland the analysed taxa are morphologically well-defined and show clear ecological preferences. Continuous variation of morphological characters was observed among specimens of C. viridula, so it is not justifiable to distinguish its subspecies (sometimes classified even as separate species), described previously in literature. Consequently, the 2 subgroups of C. viridula were treated as local variants (i.e. varieties: var. viridula and var. pulchella), considering their different habitat requirements. Additionally, 5 hybrids were distinguished within C. flava agg.: C. ×alsatica [= C. demissa × C. flava], C. ×ruedtii [= C. flava × C. lepidocarpa], C. ×schatzii [= C. lepidocarpa × C. viridula], C. ×subviridula [= C. flava × C. viridula], and C. demissa × C. viridula; as well as 2 hybrids with C. hostiana as one of the parents: C. ×fulva [= C. demissa × C. hostiana] and C. ×leutzii [= C. hostiana × C. lepidocarpa].

show abstract

Carex disperma Dewey versus Carex loliacea L. (Cyperaceae): distribution dynamics and conservation status in Poland.

Cited by 2 publications

References 4 publications

Carex disperma – not yet extinct species in old-growth swampy forests of Lithuania

Carex disperma – not yet extinct species in old-growth swampy forests of Lithuania

Carex flava agg. (section Ceratocystis, Cyperaceae) in Poland: taxonomy, morphological variation, and soil conditions

Contact Info

Product

Resources

About