Steganotheca is a genus of bushy, probably vascular plants with branched axes, known from upper Silurian strata.[1] It has terminal sporangia and reached 5 cm in height.[2]
References
^Edwards, D. (1982). "Fragmentary non-vascular plant microfossils from the late Silurian of Wales". Botanical Journal of the Linnean Society. 84 (3): 223–256. doi:10.1111/j.1095-8339.1982.tb00536.x.
