ae PAL PONY ELSEVIASE R PALYNOLOGY Review of Palaeobotany and Palynology 93 (1996) 341 Contents Volume 93, 1996 Special Issue: Maurice Streel (edited by M. Fairon-Demaret) Dedication M. Fairon-Demaret, M. Vanguestaine The scientific work of Maurice Streel Ordovician and Silurian cryptospores and miospores from southeastern Turkey P. Steemans, A. le Hérissé, N. Bozdogan Demersatheca Li et Edwards, gen. nov., a new genus of early land plants from the Lower Devonian, Yunnan Province, China C.-S. Li, D. Edwards Lower Devonian plant remains from Marchin (northern margin of Dinant Synclinorium, Belgium). IV. Odonax borealis gen. et Sp. Nov. P. Gerrienne Anapaulia moodyi gen. et sp. nov.: a probable iridopteridalean compression fossil from the Devonian of western Venezuela C.M. Berry, D. Edwards Devonian spore ultrastructure: Rhabdosporites T.N. Taylor, S.E. Scheckler Rhabdosporites langii, Geminospora lemurata and Contagisporites optivus: an origin for heterospory within the Progymnosperms J.E.A. Marshall Biostratigraphy of the Upper Devonian Escuminac Formation, eastern Québec, Canada: a comparative study based on miospores and fishes R. Cloutier, S. Loboziak, A.-M. Candilier, A. Blieck Dorinnotheca streelii Fairon-Demaret, gen. et sp. nov., a new early seed plant from the upper Famennian of Belgium I aa a A Oa ce asa Sls ia sod nh comand tecloannenounndvddntesdegeesek ieoteaintenbasedeuetstotencaseabaesscebens 217 A new Late Devonian acupulate preovule from the Taff Gorge, South Wales SN C0 leg Daceo e as eee cee ate cies, oda salndeinclipilonbdeusilesceeecasclwaomanasbaaninpaeensnpmabennnecsiinbdeiee n 235 Reconstruction of the frond of Laceya hibernica, a Lyginopterid pteridosperm from the uppermost Devonian of Ireland S.D. Klavins, L.C. Matten Taxonomy and systematic study of some Tournaisian (Hastarian) spores from Belgium eels ee ecient cacnaci tosis isde s cb edmsan ede faired leeeade eostanteavh i cstuheaaia vintvulboaialtoaass ia ties tesssnsansebctqunasdacebgianbidibivnstasiovedcocensateessisaies 269 The early seed plant Tristichia tripos (Unger) comb. nov. from the Lower Carboniferous of Saalfeld, Thuringia aL scl sk cs ns enhannesuronndavssiedieestetleyessiddvudenkecntsaseeasittaebsaesopolseaicnoitveontnbsinnteiocnseuiensi 299 New data on the formation of Carboniferous coal balls A.C. Scott, D.P. Mattey, R. Howard Abnormal spores and possible interspecific hybridization as a factor in the evolution of Early Devonian land plants J.B. Richardson