is narrower than the gemma and then has the appearance of being merely the stalk, but the lamina broadens out and the nerve becomes more apparent. Again, a rounded gemma under the microscope looks very like a bird's head and neck, the hyaline point, which is afterwards to lengthen out into a shoot, representing the bill. A gemma of this shape usually lengthens out before it becomes finally detached. Probably the gemma is matured before the leaf is fully grown as one finds leaves in all the later stages of development with only the broken nerve at the apex. Occasionally, as when growth has been rapid, as in mild damp weather, one sees a fully grown leaf with gemma intact. What causes them to break off? Perhaps rain-drops help and gradually wash them to the bases of the plants, that they may the more easily develop into protonemata. Sometimes it is a clean break from the edge of the lamina, but more usually the neck is left projecting from the apex. From appearances it would seem that the middle cells of this are modified into a continuation of the nerve tissue, so that in describing it one would say “nerve excurrent in a truncate mucro.” It may be noted that in Mr. Dixon's drawing in the Bulletin the plant is branched. The gemmae on the young leaves thus appearing laterally may give one the impression that they are axillary, especially if the young apical leaves are hidden at the time. The fruit of this plant still remains unknown though archegonia and antheridia have been found.