TY - JOUR T1 - On the Organisation of the Fossil Plants of the Coal-Measures. Part XIV. The True Fructification of Calamites JF - Philosophical Transactions of the Royal Society of London. B (1887-1895) VL - 179 SP - 47 EP - 57 PY - 1888/01/01/ UR - http://dx.doi.org/10.1098/rstb.1888.0002 M3 - doi:10.1098/rstb.1888.0002 AU - Williamson, W. ER -