RECENTLY, by the kindness of Mr. Orr, of the Royal Botanic Gardens, Edinburgh, I was able to make preparations of the pollen of Metasequoia glyptostroboides, the 'living fossil' discovered in China a few years ago. On examining this pollen, I was at once reminded of certain fossil grains observed in Tertiary coal from Mull, Scotland, which I had been unable to match to my complete satisfaction with the grains of any living conifer. They showed characters most suggestive of Glyptostrobus and Taxodium and, less closely, of Sequoia.