Abstract
Daffodils are an attractive group by their striking flowers and scents, therefore very appreciated as ornamental plants. Cultivars are very numerous, leading to more than 27,000 names considering them (Kington 2008). In the wild, the Iberian Peninsula can be recognized as the centre of speciation of Narcissus Linnaeus (1753: 289) (Barra et al. 2011). Consequently, the richest global diversity is found there (Hanks 2002). It is a complex genus that according to diverse authors varies from 25 to 87 species (cf. Webb 1980, Blanchard 1990, Mathew 2002, Zonneveld 2008, Aedo 2013, RHS 2016). Moreover, new species are still described (Escobar García 2018). Some daffodils have been described considering only herbarium vouchers. Nonetheless, it is encouraged to study populations from living specimens by two main reasons: (i) some features such as corona or perigone size—and ratios that include them—cannot be retrieved from exsiccata; and (ii) to study daffodils in the wild allow better understanding of their ecology and phenology (Barra Lázaro et al. 2016). The latter is important to clarify species spatial distribution and their hybrids.
References
<p class="Reference">Aedo, C. (2013) <em>Narcissus</em> L. <em>In</em>: Castroviejo, S., Aedo, C., Laínz, M., Muñoz Garmendia, F., Nieto Feliner, G., Paiva, J. & Benedí, C. (Eds.) <em>Flora Iberica</em>. Vol. 20. Real Jardín Botánico, CSIC, Madrid, pp. 340–397.</p><p class="Reference">Baack, E.J. & Rieseberg, L.H. (2007) A genomic view of introgression and hybrid speciation. <em>Current Opinion in Genetics & Development</em> 17: 513–518.</p><p class="Reference"> https://doi.org/10.1016/j.gde.2007.09.001</p><p class="Reference">Barra, A., Blanco, E. & Grijalbo, J. (2011) Narcisos ibéricos: junquillos, campanillas, capirotes o trompones. <em>Quercus</em> 301: 40–52.</p><p class="Reference">Barra, A. & López González, G. (1982) Notas sueltas sobre el género <em>Narcissus</em> en España. <em>Anales del Jardín Botánico de Madrid</em> 39 (1): 67–78.</p><p class="Reference">Barra, A. & Ureña, F. (2014) <em>Narcissus</em> × <em>hervasii</em> Barra & Ureña (<em>Amaryllidaceae</em>), una nueva especie híbrida. <em>BV news Publicaciones Científicas</em> 3 (37): 9–11.</p><p class="Reference">Barra Lázaro, A., Díez Domínguez, R. & Ureña Plaza, F. (2016) Novedades en <em>Narcissus</em> L. (Amaryllidaceae). <em>Flora Montiberica</em> 63: 103–111.</p><p class="Reference">Blanchard, J.W. (1990) <em>Narcissus: A guide to wild daffodils</em>. Alpine Garden Society, Surrey, 203 pp.</p><p class="Reference">Chartier, M., Liagre, S., Weiss-Schneeweiss, H., Kolano, B., Bessière, J.M., Schönenberger, J. & Gibernau, M. (2016) Floral traits and pollination ecology of European <em>Arum </em>hybrids. <em>Population Ecology</em> 180: 439–451.</p><p class="Reference"> https://doi.org/10.1007/s00442-015-3498-9</p><p class="Reference">Escobar García, P. (2018) A new species of <em>Narcissus</em> sect. <em>Apodanthi</em> (Amaryllidaceae) from the western Iberian Peninsula. <em>Phytotaxa</em> 345 (2): 143–151.</p><p class="Reference"> https://doi.org/10.11646/phytotaxa.345.2.5</p><p class="Reference">Fernandes, A. (1968) Keys to the identification of native and naturalized taxa of the genus <em>Narcissus</em> L. <em>Daffodil Tulip Year Book</em> 59: 37–66.</p><p class="Reference">Fernández Casas, F.J. (1980) <em>Exsiccata quaedam a nobis nuper distributa, III</em> (163–253). Departamento de Botánica, Facultad de Ciencias, Universidad Autónoma, Madrid, 14 pp.</p><p class="Reference">García Martínez, X.R. & Silva-Pando, J. (2015) <em>Narcissus</em> × <em>dezanus</em> García Mart. & Silva Pando (Amaryllidaceae), una nueva nothoespecies del Noroeste de España. <em>Candollea</em> 70: 5–7.</p><p class="Reference"> https://doi.org/10.15553/c2014v701a1</p><p class="Reference">Graells, M. (1854) <em>Indicatio Plantarum Novarum</em>… Ex Typographia A. Gómez Fuentenebro, Madrid, 30 pp.</p><p class="Reference">Hanks, G.R. (1996) Variation in the growth and development of narcissus in relation to meteorological and related factors. <em>Journal of Horticultural Science</em> 71: 517–532.</p><p class="Reference"> https://doi.org/10.1080/14620316.1996.11515432</p><p class="Reference">Hanks, G.R. (2002) The biology of<em> Narcissus</em>. <em>In</em>: Hanks, G.R. (Ed.) <em>Narcissus and Daffodils. The genus Narcissus</em>. Taylor & Francis, London, pp. 1–18.</p><p class="Reference">Hervás Serrano, J.L. (2015) <em>Narcissus</em> × <em>tuckeri</em> Barra & G. López nothovar. <em>fernandezii-lopezii</em> (Hervás) Hervás, y <em>Narcissus</em> × <em>montielanus</em> Barra & G. López nothovar. <em>diezii</em> Hervás, dos nuevas variedades híbridas (<em>Amaryllidaceae</em>). <em>BV news Publicaciones Científicas</em> 4 (46): 21–25.</p><p class="Reference">Ker-Gawler, J.B. (1806) <em>Narcissus papyraceus</em>. <em>Botanical Magazine</em> 24: tab. 947.</p><p class="Reference">Kington, S. (2008) <em>The International Daffodil Register and Classified List</em>. United Kingdom: Royal Horticultural Society.</p><p class="Reference">Lamarck, J.B.P.A. (1785) Encyclopédie méthodique. Botanique 1: 723.</p><p class="Reference">Linnaeus, C. (1753) <em>Species Plantarum… </em>2 vols. Holmiae : Impensis Laurentii Salvii, Stockholm, 1200 pp. (Sp. Pl.)</p><p class="Reference">Linnaeus, C. (1762) <em>Species Plantarum</em>… 2 vols. Holmiae : Impensis Direct Laurentii Salvii, Stockholm, 1684 pp. (Sp. Pl., ed. 2)</p><p class="Reference">López-Tirado, J. (2018) <em>Flora Vascular del Término Municipal de Córdoba</em>. Jolube Consultor Botánico y Editor, Ayuntamiento de Córdoba, 304 pp.</p><p class="Reference">Mallet, J. (2007) Hybrid speciation. <em>Nature</em> 446: 279–283.</p><p class="Reference"> https://doi.org/10.1038/nature05706</p><p class="Reference">Marques, I., Fuertes Aguilar, J., Martins-Loução, M.A., Moharrek, F. & Nieto Feliner, G. (2017) A three-genome five-gene comprehensive phylogeny of the bulbous genus <em>Narcissus</em> (Amaryllidaceae) challenges current classifications and reveals multiple hybridization events. <em>Taxon</em> 66 (4): 832–854.</p><p class="Reference"> https://doi.org/10.12705/664.3</p><p class="Reference">Mathew, B. (2002) Classification of the genus<em> Narcissus</em>. <em>In</em>: Hanks, G.R. (Ed.) <em>Narcissus and Daffodils. The genus Narcissus</em>. Taylor & Francis, London, pp. 30–52.</p><p class="Reference">Navarro, F.B. (2009) Amaryllidaceae. <em>In</em>: Blanca, G., Cabezudo, B., Cueto, M., Fernández López, C. & Morales Torres, C. (Eds.) <em>Flora Vascular de Andalucía Oriental 1</em>. Consejería de Medio Ambiente, Junta de Andalucía, Sevilla, pp. 169–181.</p><p class="Reference">Pedro, G. (1947) <em>Narcissus fernandesii</em>. <em>Boletim da Sociedade Broteriana</em> 21 (ser. 2): 60, tabs. 1–3.</p><p class="Reference">R.H.S. (Royal Horticultural Society) (2016) Botanical classification, updated Dec 2016. Available from: <a href="https://www.rhs.org.uk/plants/pdfs/plant-registration-forms/daffbotanical">https://www.rhs.org.uk/plants/pdfs/plant-registration-forms/daffbotanical</a> (accessed 9 August 2018)</p><p class="Reference">Redouté, P.J. (1816) <em>Les Liliaceés 8</em>. Chez l’auteur, rue de Seine, Faubourg S. Germain, nº. 6, Paris, 126 pp.<em> </em></p><p class="Reference">Ribeiro, P., Paiva, J. & Freitas, H. (2007) <em>Narcissus</em> × <em>caramulensis</em> (Amaryllidaceae), a new hybrid for the portuguese flora. <em>Anales del Jardín Botánico de Madrid</em> 64 (1): 43–46.</p><p class="Reference"> https://doi.org/10.3989/ajbm.2007.v64.i1.50</p><p class="Reference">Rieseberg, L.H., Archer, M.A. & Wayne, R.K. (1999) Transgressive segregation, adaptation and speciation. <em>Heredity</em> 83: 363–372.</p><p class="Reference"> https://doi.org/10.1038/sj.hdy.6886170</p><p class="Reference">Rieseberg, L.H., Ellstrand, N.C. & Arnold, M. (1993) What can molecular and morphological markers tell us about plant hybridization? <em>Critical Reviews in Plant Sciences</em> 12: 213–241.</p><p class="Reference"> https://doi.org/10.1080/07352689309701902</p><p class="Reference">Rivas Goday, S. (1964) <em>Vegetación y flórula de la cuenca extremeña del Guadiana.</em> Publicaciones de la Excma. Diputación Provincial de Badajoz, Madrid. 778 pp.</p><p class="Reference">Sánchez García, I. & Martínez Ortega, C. (1995) <em>Narcissus</em> × <em>libarensis</em> Sánchez García & Martínez Ortega, notoespecie nueva para la flora ibérica. <em>Lagascalia</em> 18 (1): 105–108.</p><p class="Reference">Vahl, M. (1790) <em>Symbolae Botanicae… Pars Prima</em>. Hauniae : Impensis Auctoris. Excudebant Nicolaus Möller et Filius, Aulae Regiae Typographi. Copenhague, 85 pp.</p><p class="Reference">Valdés, B. (1987) <em>Narcissus</em> L. <em>In</em>: Valdés, B., Talavera, S. & Fernández-Galiano, E. (Eds.) <em>Flora Vascular de Andalucía Occidental 3</em>. Editorial Ketres, Barcelona, pp. 463–474.</p><p class="Reference">Webb, D.A. (1980) <em>Narcissus</em>. <em>In</em>: Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (Eds.) <em>Flora Europaea, vol. 5</em>. Cambridge University Press, Cambridge, pp. 78–84.</p><p class="Reference">Zonneveld, B. (2008) The systematic value of nuclear DNA content for all species of <em>Narcissus</em> L. (Amaryllidaceae). <em>Plant Systematics and Evolution</em> 275: 109–132.</p><p> https://doi.org/10.1007/s00606-008-0015-1</p>