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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Rippey, I. | 1989 | Plant records for Co. Fermanagh | Unpublished | | Details... |
| Rippey, I. & Browne, V. | 1989 | Excursion: The Fermanagh weekend: botanical | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Rose, F. | 1989 | Colour identification guide to the grasses | Book | | Details... |
| Rotheray, G.E. & Shaw, M.R. | 1989 | Medetera cocoons under bark (Diptera: Dolichopodidae) | Journal | Ent. Monthly Mag. | Details... |
| Ryall, T. | 1989 | The pitcher-plant Sarracenia purpurea L. in Co. Kerry (H2) | Journal | Ir. Nat. J. | Details... |
| Scannell, M.J.P. & Synnott, D.M. | 1989 | Sources for the Census Catalogue of the Flora of Ireland | Published | | Details... |
| Smits, A.J.M., van Ruremonde, R. & van der Velde, G. | 1989 | Seed dispersal of three nymphaeid macrophytes | Journal | Aquatic Bot. | Details... |
| Stace, C. | 1989 | Butterburs - sex with a difference | Journal | Plants Today | Details... |
| Synnott, D.M. & Robinson, D.W. | 1989 | The moss Trichostomopsis umbrosa (C. Mull.) Robins, in Ireland | Journal | Ir. Nat. J. | Details... |
| Ulster Wildlife Trust | 1989 | Report on wildflower seed trials sent to Plant Press | Report | | Details... |
| van Wilk, R.J. | 1989 | Ecological studies on Potamogeton pectinatus L. III. Reproductive strategies and germination ecology | Journal | Aquatic Bot. | Details... |
| Wallerstein, I. & Hackett, W.P. | 1989 | Inflorescence induction and initiation in Hedera helix | Journal | Israel J. Bot. | Details... |
| Walters, M. | 1989 | Review: 'The brightest Jewel: a history of the National Botanic Gardens, Glasnevin, Dublin' by E.C. Nelson & E.M. McCracken | Journal | Ir. Nat. J. | Details... |
| Ward, L.K. | 1989 | Seed viability in juniper (Juniperus communis) Contract Report English Nature/Natural Environmental Research Council. Unpublished report held by English Nature/Institute of Terrestrial Ecology | Report | | Details... |
| Webb, D.A. | 1989 | Miscellaneous plant records from several counties | Journal | Ir. Nat. J. | Details... |
| Weyl, R.S. & Leach, S.J. & Waterman, A.C. | 1989 | Additions and amendments to the Lough Neagh Flora | Journal | Ir. Nat. J. | Details... |
| Wilde, J. | 1989 | Aberrant dactylorchid in Co. Antrim | Journal | Ir. Nat. J. | Details... |
| Wilde, J. | 1989 | Excursion: Crumlin Glen | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Wilde, J. | 1989 | Excursion: Woodburn Glen | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Woods, R.G. | 1989 | Survey of specialist biological groups in Northern Ireland. Report on Lichens and Bryophytes. Annex 2 | Book | | Details... |
5058 references found.