@book {Kunkel 1979,
	title = {Flora de Gran Canaria IV. Excmo.},
	year = {1979},
	pages = {1-121},
	publisher = {Cabildo Insular de Gran Canaria.},
	organization = {Cabildo Insular de Gran Canaria.},
	address = {Las Palmas},
	author = {Kunkel, G. and Kunkel, M. A.}
}
@book {Kunkel 1991,
	title = {Flora y vegetaci{\'o}n del Archip{\'e}lago Canario. Tratado floristico.},
	series = {Dicotiled{\'o}neas},
	volume = {2},
	year = {1992},
	pages = {312},
	publisher = {Las Palmas de Gran Canaria},
	organization = {Las Palmas de Gran Canaria},
	address = {Edirca},
	author = {Kunkel, G.}
}
@article {Reyes-Betancort2008,
	title = {Diversity, rarity and the evolution and conservation of the Canary Islands endemic flora},
	journal = {Anales del Jardin Botanico de Madrid.},
	volume = {65},
	year = {2008},
	pages = {25-45},
	author = {Reyes-Betancort, J. A., and Santos-Guerra, A. and Guma, I. R. and Humphries, C. J. and Carine, M. A.}
}
@article {Su{\'a}rez Rodr{\'\i}guez1982,
	title = {Aportaciones a la distribution y ecolog{\'\i}a de Senecio appendiculatus (L. fil.) var. preauxiana y Senecio hadrosomus Svent.},
	journal = {Anales del Jardin Botanico de Madrid.},
	volume = {10} pages = {85-92},
	year = {1982},
	author = {Su{\'a}rez-Rodr{\'\i}guez, C.}
}
@inbook {72,
	title = {IUCN Red List categories and Criteria},
	booktitle = {IUCN Red List categories and Criteria},
	volume = {3.1},
	year = {2001},
	pages = {30+},
	publisher = {IUCN Species Survival Commission. },
	organization = {IUCN Species Survival Commission. },
	address = {Gland, Switzerland and Cambridge, United Kingdom},
	author = {IUCN}
}
@article {71,
	title = {Beitrage zur {\"o}kologie und Biologie der Kanarenpflanzen},
	journal = {Bibl. Bot.},
	volume = {98},
	year = {1929},
	pages = {262},
	author = {Burchard, O.}
}
