and vice-versa. This latter idea needs careful testing on a large number of males and females from widely separated places, because, if correct, it would at once give great hopes of settling the status of Lunularia in Britain. At our present state of knowledge, however, the new records do help a little. To those who believe the species to be native to southern and western England the discovery of so many sexual stages in South and West Wales and the record of sporogonial plants near Cardiff. might suggest that Lunularia is also native to southern Wales. The few records we possess have undoubtedly raised a number of interesting questions concerning the natural history of this species, but many more observations from all parts of England and Wales are needed in order to settle them. It is felt that both sexual and sporogonial stages are not nearly so rare as the records suggest and that a systematic search of most regions would almost surely reveal some stages. Another worthwhile line of enquiry would be to record systematically all the clones of Lunularia in several districts and find out how many were growing in man-made habitats. Information of this kind will help to settle the status of this interest- ing liverwort. REFERENCES Benson-Evans, K. & Hughes, J. G. (1955). Trans. Brit. Bryol. Soc. Vol. 2. Goodman, G. T. (1956). Trans. Brit. Bryol. Soc. Vol. 3. The author would be very pleased to obtain further informa- tion of sexual or sporogonial plants and would be glad to check any specimens readers may care to send.