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Gymnocarpium robertianum Scented Oakfern
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Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 1015 1302 (2015-10-10)Copyright © 2015 Dr. Amadej Trnkoczy
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 6, 2015
latitude 46.36080 longitude 13.70333
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location
Lower Trenta valley, between villages Trenta and Soča, right bank of river Soča, close to Na melu place, East Julian Alps (Posočje, Slovenia)notes Slo.: apnenka - syn.: Nephrodium robertianum (Hoffm.) Prantl, Lastrea obtusifolia (Schrank) Janchen - Habitat: light mixed forest, modestly inclined mountain slope, southeast aspect; colluvial, skeletal, calcareous ground, half shade, relatively warm and dry place; average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 595 m (1.950 feet), alpine phytogeographical region. - Substratum: forest soil. - Comment: Gymnocarpium robertianum is a common fern in Slovenia; hence it is easy to find. It grows everywhere in the Alps and in almost all other European mountains also in low elevations. However, there exist two species - Gymnocarpium robertianum and Gymnocarpium dryopteris, both common and wide spread, which are very similar in appearance. Gymnocarpium robertianum loves basic, calcareous ground, while Gymnocarpium dryopteris prefers acid ground. Distinguishing both types of ground is not always a simple task for a layman and therefore usually not a handy characteristics for separation of both species. Fortunately there exists another difference, which is a clear-cut trait. Leaf stalks and underside of Gymnocarpium robertianum are covered by small but conspicuous glandulous hairs (see Picture 7b) while Gymnocarpium dryopteris has none. - Ref.: (1) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 240. (2) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 105. (3) E.J. Jäger, Rothmaler 3, Exkursionsflora von Deutschland, 11.Aufl., Elsevier, Spectrum (2007), p 23. (3) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 90.camera Nikon D700/Nikkor Micro 105mm/f2.8
contributor's ID # Bot_898/2015_DSC7670 photo category: Plant - fern
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MORE INFORMATION ABOUT THIS PLANT |
common names
Scented Oakfern, Robert's Fern (photographer)
View all photos in CalPhotos of Gymnocarpium robertianum Check Google Images for Gymnocarpium robertianum |
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The photographer's identification Gymnocarpium robertianum has not been reviewed. Click here to review or comment on the identification. |
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For other uses, or if you have questions, contact Dr. Amadej Trnkoczy amadej.trnkoczy[AT]siol.net. (Replace the [AT] with the @ symbol before sending an email.) |
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