Fen orchid Liparis loeselii (L.) Rich. in abandoned gravel-pit in Dąbrówka Stany near Siedlce (Poland)
2006
Bzdon, Grzegorz | Ciosek, Marek T.
The aim of the study was to characterise some individual and group features of the Liparis loeselii population occurring in a gravel-pit in Dąbrówka Stany. 20 specimens of L. loeselii including 5 flowering plants were observed in the area of 56 m2 in 2005. In 2003 there was a population of 12 specimens also with 5 flowering stems. Therefore the increase in the population number in the last two years shows the relatively good condition of the population. It is confirmed by high percentage of plants in vegetative stage (75%) as well. The state of risk of the population, indicated by the number of flower per inflorescence as well as length and breadth of leaves as compared with those in 2003, is probably caused by stronger competition of light-seeded phanerophytes and shaded positions.
显示更多 [+] 显示较少 [-]