terrestrial, botany, distribution, chorology, biogeography, floristics, taxonomy, systematics, nature photography, Biogeography, Morphology, Systematics and taxonomy, Chorology, Dry grasslands and steppes, Forests, Cultivated and artificial habitats, Monitoring of Biodiversity, Biostatistics, Genetics, Systematics, Inventorying and Classification, Europe, Belgium, Portugal, vascular plants, monocotyledons, Orchidaceae
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DUFRENE, M., GATHOYE, J.-L. & TYTECA, D.: "Biostatistical studies on western European Dactylorhiza (Orchidaceae) - the D. maculata group". Plant Systematics and Evolution 175 (1-2): 55-72, 1991. |
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TYTECA, D. & DUFRENE, M.: "On the use of distances in the taxonomic study of critical plant groups - Case studies of western European Orchidaceae". Annals of Botany 71 (3): 257-277, 1993. |
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TYTECA, D. & GATHOYE, J.-L.: "On the morphological variability of Dactylorhiza praetermissa (Druce) Soó (Orchidaceae)". Belgian Journal of Botany 126 (1): 81-99, 1993. |
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GATHOYE, J.-L. & TYTECA, D. (Dessins ADAM, D.): "Clé et inventaire synonymique des Dactylorhiza (Orchidaceae) de France et du Benelux". Lejeunia, Nouvelle série N° 143: 85 p., 1994. |
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TYTECA, D. & DUFRENE, M.: "Biostatistical studies of western European allogamous popul-ations of the Epipactis helleborine (L.) Crantz species group (Orchidaceae)". Systematic Botany 19 (3): 424-442, 1994. |
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TYTECA, D.: "New acquirements in the taxonomy of allogamous species of the Epipactis helleborine (L.) Crantz group in western Europe". Communication à la 10. Wuppertaler Orchideen-Tagung, Wuppertal (Allemagne), 9-10 octobre 1993. Jahresberichte des Naturwissenschaftlichen Vereins in Wuppertal 48: 154-175, 1995. |
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TYTECA, D.: "Multivariate analyses of western European allogamous populations of Epipactis helleborine (L.) Crantz s.l., with special emphasis on E. tremolsii Pau in southeastern France". Berichte aus den Arbeitskreisen Heimische Orchideen 12 (1): 4-49, 1995. |
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TYTECA, D.: "The orchid flora of Portugal". Journal Europäischer Orchideen 29 (2/3): 185-581, 1997 (published 1998). |
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TYTECA, D.: "The orchid flora of Portugal - Addendum N. 1 - Remarks on the distribution of Spiranthes aestivalis (Poiret) L.C.M. Richard and three other species". Journal Europäischer Orchideen 30 (1): 230-245, 1998. |
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Bournérias, M. (dir. scient.), Aymonin, G.G., Bournérias, J., Demange, M., Démares, M., Engel, R., Gathoye, J.-L., Gerbaud, O., Guillaumin, J.-J., Jacquet, P., Lemoine, G., Melki, F., Prat, D., Quentin, P. & Tyteca, D.: "Les Orchidées de France, Belgique et Luxembourg". Ouvrage collectif sous l'égide de la Société Française d'Orchidophilie, Collection Pathénope, Paris: 416 p., 1998. |
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TYTECA, D. & CAPERTA, A.: "The orchid flora of Portugal - Addendum N. 2 - Chorological and systematic remarks on Dactylorhiza maculata (L.) Soó s.l. and Epipactis helleborine (L.) Crantz - First report of E. phyllanthes G. E. Sm.". Journal Europäischer Orchideen 31 (2): 277-296, 1999. |
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TYTECA, D. & GATHOYE, J.-L.: "Morphometric analysis of Dactylorhiza occitanica and related populations from eastern France (Orchidaceae)". Belgian Journal of Botany 132 (2): 158-174, 1999 (published 2000). |
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TYTECA, D.: "The Orchid Flora of Portugal - Addendum N. 3 - Remarks on Spiranthes spiralis (L.) Chevall. and three new taxa to the Portuguese Flora". Journal Europäischer Orchideen 32 (2): 291-347, 2000. |
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TYTECA, D. & GATHOYE, J.-L.:"Morphometric analyses of the Dactylorhiza majalis group in western Europe - With description of D. parvimajalis Tyteca et Gathoye, sp. nov.". Journal Europäischer Orchideen 32 (3/4): 471-511, 2000. |
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TYTECA, D.: "Systematics and biostatistics of Dactylorhiza in western Europe: some recent contributions". Journal Europäischer Orchideen 33 (1): 179-199, 2001. |
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TYTECA, D.: "The Orchid Flora of Portugal - Addendum N. 4 - Comments on the Ophrys fusca and O. dyris groups - Conservation needs and strategies". Journal Europäischer Orchideen 33 (1): 201-215, 2001. |
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