Dryopteris affinis aggr. 20160828_174501 : 無料・フリー素材/写真
Dryopteris affinis aggr. 20160828_174501 / Stamnariophilus
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Dryopteris affinis ssp. borreri ?I had no time and will to look for ID of the apogamous type resp. ssp./sp.Those narrow ditches, cut deeply into rocks, metamorphic siliceous at bottom, metamorphic limestone above, are hard to go along.It was dark when i came back to castle Gutenberg since the distance was that long, no chance to go as the crows do fly!Scaly male ferns, Dryopteris affinis aggr., are growing abundantly in this and neighbouring ditches leading down to gorge Raabklamm.There are many large examples, some even bigger than this one, with leaves probably up to 1.5m in length.D. affinis is clearly more numerous than D. filix-mas, and some of the largest individuals might be (apogamous?) hybrids in fact.I do assume the imaged one to represent ssp. borreri, as the main part will be there, however i have seen a few examples which might be ssp. affinis, having rather rectangular pinnules (not imaged, sorry!). |
| 撮影日 | 2016-08-28 17:45:01 |
| 撮影者 | Stamnariophilus , Frohnleiten, Österreich, Steiermark |
| 撮影地 | Grillbichl, Steiermark, Österreich 地図 |
| カメラ | LG-H440n , LG Electronics |
| 露出 | 0.05 sec (1/20) |
| 開放F値 | f/2.4 |