Slo.: navadna perua - Habitat: almost flat bottom of a narrow gorge, northeast oriented, mixed wood, mostly Picea abies, Acer sp., Ulmus sp., Corylus avellana, Lonicera sp., Sambucus sp., calcareous ground, mostly in shade, high air humidity, average precipitations 1.600-1.800 mm/year, average temperature 6-8 deg C, elevation 850 m (2.800 feet), alpine phytogeographical region. - Substratum: soil. - Comment: Growing in large groups of many species. The largest population I've ever seen (2). This fern, not really common in Slovenia, is not difficult to recognize based on its characteristic narrow funnel shaped growth, size, and two different type of leaves. Only sterile leaves are shown on my pictures. Fertile ones, appearing later in the season, are brown, much narrower and growing straight upwards. - Ref.: (1) A.Martinči et all., Mala Flora Slovenije, Tehnična Zaloba Slovenije (2007), p 100. (2) K.Lauber and G.Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 74.
Slo.: alpska prianica - syn.: Cystopteris fragilis ssp. alpina, Cystopteris fragilis ssp. regia (L.) Desv., Cystopteris regia, Cystopteris crispa. - Habitat: Crevices of a medium sized limestone boulder, among rocks on open mountain pasture; skeletal, calcareous ground; southwest aspect, open place, full sun, exposed to direct rain and wind; average precipitations ~ 3.000 mm/year, average temperature about 0 deg C, elevation 2.040 m (6.700 feet), alpine phytogeographical region. Substratum: soil in crevices and among rocks or scree. Comment: Cystopteris alpina is quite a common plant in Slovenian Alps. It's not difficult to spot it among rocks, in rock crevices and sometimes on scree slops. It can be also found in the whole Alps and other European mountains, albeit only in subalpine and alpine elevations above tree line. In spite of this its taxonomy is not yet agreed upon. Cystopteris alpina belongs to Cystopteris fragilis aggregate, a group of similar plants, which are not yet sufficiently researched in Slovenia (Ref.:3). Microscopy study of spore surface is sometimes needed for absolute certainty of determinations. Hence my determination should not be taken as pure gold. Ref.: (1) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 86. (2) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora fr sterreich, Liechtenstein und Sdtirol, LO Landesmuseen, Linz, Austria (2005), p 239. (3) A. Martini et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnina Zaloba Slovenije (2007), p 99. (4) K.Lauber and G.Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 70. (5) H. Haeupler, T. Muer, Bildatlas der Farn- und Bluetenpflazen Deutschlands, Ulmer (2000), p,47.