FUNGI OF EPPING FOREST: MYXOMYCETES 337 The Fungi of Epping Forest Part 3 MYXOMYCETES By Bernard T. Ward Our knowledge of the Mycetozoa of Epping Forest stems almost entirely from observations made by members of the Club. Arthur Lister (1830-1908) a founder member of the Essex Field Club studied the group and prepared a Catalogue of the specimens in the Natural History Museum. His work A Monograph of the Mycetozoa: Being a descriptive Catalogue of the species in the Herbarium of British Museum (1894) illustrated by plates in black and white being photographic reproductions of colour drawings made by his daughter Miss Gulielma Lister F.L.S., became the standard British work. The second edition of the Monograph with numerous plates in colour was completed after his death by his daughter, herself twice elected to the Presidency of the Club. Other members who furnished notes were Thomas Petch, who became mycologist to the Royal Botanic Gardens in Ceylon, Miss Alice Hibbert Ware, F.L.S., and Mr Joseph Ross who from 1914 supplied lists each month. At the time of the Club's Special Memoir The Mycetozoa (1918) Miss Lister recorded 88 species for the County, most of which were from Epping Forest. Since 1918 the list has grown steadily, but less rapidly as additional species become less easily found. Nevertheless in 1945 Mr Ross pub- lished a list of Forest species in the London Naturalist under the Cuckoo Pits Survey totalling some 106 species excluding varie- ties. The present list totals 107 species excluding varieties. The nomenclature follows that of Miss G. Lister in the 3rd Edition of the Monograph (1925). MYCETOZOA (MYXOMYCETES) Ceratiomyxa fruticulosa (Mueller) Macbride. Badhamia populina Lister. B. utricularis (Bulliard) Berkeley. B. foliicola Lister. B. macrocarpa (Cesati) Rostafinski. B. panicea (Fries) Rost. B. panicea (Fries) Rost., var. heterospora G. Lister. B. rubiginosa (Chevallier) Rost., var. dictyospora Lister. Physarum psittacinum Ditmar.