Fig. 1
From: Re-study of Guangdedendron micrum from the Late Devonian Xinhang forest
In-situ rooting systems of Guangdedendron micrum from Yongchuan mine. A Stem and connected rhizomorph axes. B Rooting system with branched rhizomorph axes. PKUB21015. C Stems with connected rhizomorph axes bearing rootlets. D Top view of the specimen shown in A, after removing the stem and surrounding rocks partially peeling off. A rooting system with four once-dichotomized rhizomorph axes. Arrows indicating 8 second-order branches. E Stem base and connected two rhizomorphic axes. F, G Rhizomorphic axes connected to moulds of stem bases and bearing rootlets. Scale bars: B, D, G (5 cm); diameter of the coin for scale: 2 cm (A, C, E, F)