Contents: XL Ginkgoales, XLI Genera Believed to belong to the ginkgoales but which on the available evidence cannot be referred without hesitation to that group, XLII Genera of Uncertain Position, XLIII Coniferales (Recent), XLIV Coniferales (Fossil), XLV Coniferales, XLVI Coniferales, XLVII Coniferales, XLVIII Coniferales, XLIX Coniferales, L Coniferales Incertae Sedis, LI Podozamites and Nageiopsis: Genera Incertae Sedis, LII Gnetales