Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Alliance SAC
Asplenion septentrionalis Gams ex Oberdorfer 1938

This alliance includes vegetation of outcrops of a variety of different rock types, with the exception of strongly calcareous rocks and serpentine. Of the species confined to rock crevices, there are specialists of acidic substrata (e.g. Asplenium septentrionale. A. trichomanes subsp. trichomanes and Woodsia ilvensis) as well as species tolerant of a broad range of substrate pH (e.g. Cystopteris fragilis and Polypodium vulgare). The suite of other species mainly depends on the vegetation types occurring in the surroundings of the outcrops and the degree of shading, which can vary from fully exposed to deeply shaded under a forest canopy.

Orig. (Oberdorfer 1938): Asplenion septentrionalis Gams

Syn.: Asplenion septentrionalis Malcuit 1929 (§ 2b, nomen nudum), Asplenion septentrionalis Gams 1936 (§ 2b, nomen nudum), Asplenion septentrionalis Focquet 1982, Hypno-Polypodion vulgaris Mucina in Grabherr et Mucina 1993, Androsacion multiflorae (nomen mutatum: Androsacion vandellii) sensu auct. non Br.-Bl. in Br.-Bl. et Jenny 1926 (pseudonym)

Diagnostic species: Asplenium septentrionale. A. trichomanes, Polypodium vulgare s. l. (P. vulgare s. str.), Saxifraga rosacea subsp. sponhemica. S. rosacea subsp. steinmannii. Woodsia ilvensis; Dicranum scoparium

Constant species: Polypodium vulgare s. l. (P. vulgare s. str.); Dicranum scoparium. Hypnum cupressiforme s. l. (predominantly H. cupressiforme s. str.)

Source: Sádlo J. (2009): SAC Asplenion septentrionalis Gams ex Oberdorfer 1938. In: Chytrý M. (ed.), Vegetace České republiky. 2. Ruderální, plevelová, skalní a su»ová vegetace [Vegetation of the Czech Republic 2. Ruderal, weed, rock and scree vegetation]. Academia, Praha, pp. 423-424.