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 A HISTORY OF SUFFOLK Among the more interesting Hepatics recorded for the county are Targionia hypophylla, discovered by the Rev. W. Kirby, the noted entomologist, at Nayland. It is a species of irregular distribution in Britain, but its head quarters are in the countries bordering the Medi- terranean ; the figure in English Botany was taken from a specimen sent from this station. Cephalozla Francisci, recorded from wet heaths in Norfolk and Suffolk by Hooker, is considered rare elsewhere, though it is probably often overlooked, and Sphaerocarpus Michelii, a small and interesting species on the borderland between the Marchantiaceae and the Jungermanniaceae also occurs. Like Targionia hypophylla this has a generally southern distribution, and has only been recorded from four other English counties. Besides these may be mentioned Riaia crystaUina, a scarce species gathered by Dr. Hind on Thetford Heath; the curious fringed aquatic Ricciocarpus natans sent by Prof. Henslow from Hitcham with Ricciella Jluitans and recorded from Lakenheath, and by Ray from Hadleigh ; Cephalozia bifida CJ. byssacea. Hook.), recorded by Hooker as far from uncommon on heaths, &c., in Norfolk and Suffolk. No doubt this record refers to the aggregate species, but the plant figured by Hooker is that which is now known as C. bifida, which appears to be the rarer of the two species in Britain, and Ptilidium ciliare, not uncommon in the Breck district, and recorded from Lound in the BotanistU Guide. RiCCIACEAB Riccia glauca, L. — crystallina, L. W. — fluitans, L. Ricciocarpus natans (L.) March ANTiACEAB w. Targionia hypophylla, L. W. Conocephalum conicum (L.) Lunularia cruciata (L.). E. Marchantia polymorpha, L. JUNGBRMANIACEAB Sphaerocarpus Michelii, Bell Aneura pingui> (L.) E. — multifida (L.) Metzgeria furcata (L.) Pellia endiviaefolia (Dicks.) JUNGERMANIACEAE {cotlt.) Pellia epiphylla (L.) Fossombronia pusilla (L.). 1 Nardia scalaris (Schrad.). E Aplozia crenulata (Sm.) Lophozia inflata (Huds.) — ventricosa (Dicks.) — excisa (Dicks.) — incisa (Schrad.) E. Sphenolobus exsectaeformis (Breidl.) Plagiochila asplenioides (L.) Mylia anomala (Hook.). E Lophocolea bidentata (L.) — heterophylla (Schrad.) Cephalozia bicuspidata (L.) — connivens (Dicks.) — Francisci (Hook.) Cephalozia byssacea (Roth.) — bifida (Schreb.) JUNGERMANIACEAE («»/.) Odontoschisma sphagni (Dicks.). E. E. E. Kantia trichomanis (L.) — Sprengelii (Mart.) W. Lepidozia setacea (Web.). E. Ptilidium ciliare (L.) Scapania compacta (Roth.) — nemoros.i (L.) — ? undulata (L.) — irrigua (Nees.) Radula complanata (L.) Madotheca platyphylla (L.) Frullania tamarisci (L.). W. — dilatau, (L.) AnTH OCE ROTACEAE Anthoceros punctatus, L. FRESHWATER ALGAE AND DIATOMS Among the data used in compiling this account of these lowly groups of plants, the following books have been used : — the Flora of Suffolk by Henslow and Skepper, the Old Botanist's Guide, the History of Yarmouth (Norfolk and Suffolk), and through the kindness of the Rev. E. N. Bloomfield, a manuscript of Mr. Skepper's and other data. The list of diatoms is almost entirely due to Mr. Skepper. A collection was made in May 1896 by my late son, Wm. West, jun., B.A., when botanizing on Cavenham Heath, the result being the addition of about ten species, marked *. There is considerable scope for future workers, particularly among the desmids, as very- few of this family are recorded. Investigators should be forthcoming in these days, when cheap and good modern microscopes are a'ailable. It will be found to be a most interesting study at almost all times of the year, as wherever there is any permanent moisture, algae of some kind are sure to be found, and they require no preparation before examination. Even diatoms can usually be determined without boiling in nitric acid, after being kept in strong spirit for some days. For the nreservation of algae for future examination an equal volume of five per cent, formalin should be added to the same volume of the water containing the algae ; this will preserve thtm indefinitely for future examination. It is advisable to make notes as to colour, &c., before preserving them. A large number of the algae are verv 74