Male fern frond (Dryopteris felix-mas). The fronds show pinnate formation,that is they have a long central midrib,or rachis,with frondlets arranged in parallel pairs along it | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wheeler, Dr. Keith |
Taille de l’image : | 5320 px × 3438 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |