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. 2016 Feb 26;117(4):585–598. doi: 10.1093/aob/mcw006

Fig. 1.

Fig. 1.

Leafy stems of the Cottonwood Canyon lycophyte. (A) Leafy stem and smaller root-bearing axis. Note narrow central stele of leafy stem (arrow) and bases of root tufts on root-bearing axis (arrowheads). Scale bar = 20 mm. HPH 229. (B) Stem mat consisting of numerous leafy stems in shale layer. Although the vertical dimension is not shown, this layer hosts many interwoven stems separated by millimetre to submillimetre shale laminae over a thickness of several centimetres. Scale bar = 40 mm. KU D1806. (C) Leafy stem. Note central stele (arrow) and leaves with visible veins (arrowheads). Scale bar = 20 mm. FMNH PP15972.