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Title: Psilotum nudum, known as the skeleton fork fern.
Caption: Psilotum nudum, known as the skeleton fork fern, is a fernlike plant in the order Psilotales, it lacks roots. Psilotum nudum is considered a 'primitive' plant - a descendent of possibly the first group of vascular plants which were widespread during the Devonian and Silurian periods.
Credit: Album / Universal Images Group / Universal History Archive
Image size: 5288 × 3966 px | 60.0 MB
Print size: 44.8 × 33.6 cm | 2081.9 × 1561.4 in (300 dpi)