Table Of Content

Aquatic Botany 54 (1996) 351-352 Contents of Aquatic Botany, Volume 54 VOL. 54 NO. 1 JUNE 1996 Analysis of interstitial water during culture of Hydrilla verticillata with controlled release fertilizers D.L. Sutton and W.G.H. Latham (Fort Lauderdale, FL, USA) Growth and morphological responses of four helophyte species in an experimental water-depth gradient H. Coops (Lelystad, The Netherlands), F.W.B. van den Brink and G. van der Velde (Nijmegen, The Netherlands) Photosynthetic and growth responses of cattail (Typha domingensis) and sawgrass (Cladium ja- maicense) to soil redox conditions S.R. Pezeshki, R.D. DeLaune, H.K. Kludze and H.S. Choi (Baton Rouge, LA, USA) Effects of liming on shallow acidified moorland pools: a culture and a seed bank experiment M.J.S. Bellemakers, M. Maessen, G.M. Verheggen and J.G.M. Roelofs (Nijmegen, The Nether- Seed germination ecology of the aquatic winter annual Hottonia inflata C.C. Baskin (Lexington, KY, USA), J.M. Baskin and E.W. Chester (Clarksville, TN, USA) In vitro germination and seedling development of Dalzellia zeylanica (Gardner) Wight (Podos- temaceae) P.L. Uniyal and H.Y. Mohan Ram (Delhi, India) 59 Zeylanidium maheshwarii—a new species of the family Podostemaceae from India C.J. Mathew and V.K. Satheesh (Kerala, India) 73 Guide for Authors 79 VOL. 54 NOS. 2-3 JULY 1996 Foreword A history of pressurised gas-flow studies in plants W. Grosse (K6In, Germany), J. Armstrong and W. Armstrong (Hull, UK) The mechanism of thermal transpiration (= thermal osmosis) W. GroBe (KéIn, Germany) Convective gas flow in plant aeration and thermo-osmosis: a model experiment D. Dedes and D. Woermann (K6ln, Germany) Pressurised ventilation in emergent macrophytes: the mechanism and mathematical modelling of humidity-induced convection W. Armstrong, J. Armstrong and P.M. Beckett (Hull, UK) Pressurised ventilation in floating-leaved aquatic macrophytes W. GroBe (Kéln, Germany) Gas fluxes achieved by in situ convective flow in Phragmites australis H. Brix, B.K. Sorrell and H.-H. Schierup (Risskov, Denmark) 352 Contents of Aquatic Botany, Volume 54 Oxygen and pressure changes measured in situ during flooding in roots of the Grey Mangrove Avicennia marina (Forssk.) Vierh. N.J. Skelton and W.G. Allaway (Sydney, N.S.W., Australia) Pathways of aeration and the mechanisms and beneficial effects of humidity- and Venturi-induced convections in Phragmites australis (Cav.) Trin. ex Steud. J. Armstrong, W. Armstrong, P.M. Beckett, J.E. Halder, S. Lythe, R. Holt and A. Sinclair (Hull, Evaluation of the ventilation resistance to convective gas-flow in the rhizomes of natural reed beds of Phragmites australis (Cav.) Trin. ex Steud. J.-G. Kohl, R. Henze and H. Kihl (Berlin, Germany) Senescence, and phytotoxin, insect, fungal and mechanical damage: factors reducing convective gas-flows in Phragmites australis J. Armstrong, W. Armstrong, I.B. Armstrong and G.R. Pittaway (Hull, UK) Methane stable isotopic distributions as indicators of gas transport mechanisms in emergent aquatic plants J.P. Chanton (Tallahassee, FL, USA) and G.J. Whiting (Newport News, VA, USA) Control of the diurnal pattern of methane emission from emergent aquatic macrophytes by gas transport mechanisms G.J. Whiting (Newport News, VA, USA) and J.P. Chanton (Tallahassee, FL, USA) Short communication The measurement of gas spaces in the roots of aquatic plants — Archimedes revisited M. Curran, P. James and W.G. Allaway (Sydney, N.S.W., Australia) VOL. 54 NO. 4 AUGUST 1996 Enzyme polymorphism in Posidonia oceanica, a seagrass endemic to the Mediterranean A. Capiomont (Nice, France), M. Sandmeier (Orsay, France), G. Caye and A. Meinesz (Nice, France) Nutrient constraints on establishment from seed and on vegetative expansion of the Mediterranean seagrass Cymodocea nodosa C.M. Duarte (Girona, Spain) and K. Sand-Jensen (Hillergd, Denmark) The germination characteristics of a population of Zannichellia palustris subsp. pedicellata T. Lombardi, S. Bedini and A. Onnis (Pisa, Italy) Can oospore germination patterns explain charophyte distribution in permanent and temporary wet- lands? M.T. Casanova and M.A. Brock (Armidale, N.S.W., Australia) Effect of decomposing filamentous algae on the growth of Elodea canadensis Michx. (a laboratory experiment) E. Pieczyfska and A. Tarmanowska (Warsaw, Poland) Lacunar pressures in Myriophyllum heterophyllum: manometric measurement and diurnal gas dynam- ics in field populations J.L. Schuette (Hickory Comers, MI, USA) Effect of increasing photon irradiance on the growth of Vallisneria americana in the tidal Potomac River V. Carter, N.B. Rybicki (Reston, VA, USA) and M. Turtora (Tallahassee, FL, USA) Book reviews Pondweeds of Great Britain and Ireland