Epiphytische Moosvegetation aufAcer campestrein Südwestdeutschland und im Östlichen Frankreich

Abstract

Philippi, G. 2010. Epiphytic bryophyte vegetation on stems of Acer campestre in SW Germany and the eastern part of France. — Herzogia 23: 269–278.The frequency of epiphytic bryophytes on the stems of Acer campestre in SW Germany and the eastern part of France (Alsace, northern part of Burgundy and southern part of Lorraine) was investigated. More than 130 stems were examined, all growing in forest communities. Isolated trees or trees growing along forest margins were not included. The diameter of the stems was mostly 0.2 to 0.3m. The average number of the observed species is 6 to 8 per stem. The bryophyte vegetation is often very luxuriant and grows on the stems not rarely up to 4 to 5m above the ground. The epiphytic bryophyte flora on Acer campestre is characterized by the dominance of neutrophytic and basiphytic species. Hypnum cupressiforme as an acidophil species was only rarely observed. The absence of Anomodon attenuatus in parts of Burgundy and Lorraine is remarkable. Distinctly different there is the epiphytic bryophyte flora on Acer campestre in areas with a higher air pollution in the Rhine area (western part of the Kaiserstuhl and the region of Mannheim — Ludwigshafen).