Linaria sagrensis (Plantaginaceae), a new high mountain species from the SE Iberian Peninsula Blanca López, Gabriel Antirrhineae Betic Massif Endemic plants Granada province Linaria sect. Supinae Seed micromorphology Sierra de la Sagra Spain Taxonomy The authors have enjoyed the facilities given by the institutions to which they belong: University of Granada, University of Almería, Junta de Andalucía and Autonomous University of Barcelona, regarding herbification permits, travel, use of facilities and laboratories, use of SEM, etc. Loans have also been received from BC, G, GDA, GDAC, HUAL, MA, MGC and SEV herbaria. Linaria sagrensis, from the south-eastern Iberian Peninsula, is here newly described, illustrated, and compared with its morphologically closest relatives from L. sect. Supinae: L. pruinosa, L. nevadensis, L. glacialis and L. alpina subsp. alpina. The species is characterized by being perennial, entirely glandular-hairy, with inflorescence dense and corymbiform, and calyx lobes unequal; corolla small, pinkish-violet, with conspicuous dark veins and yellow to orangish palate, and spur shorter than the rest of the corolla; capsule globose, glandular-hairy at apex; seeds large, black to dark greyish, with apparently smooth disc, though with very few and scattered small tubercles, and light-grey wing. Linaria sagrensis is endemic to Sierra de la Sagra (N Granada province, Spain), growing in calcareous screes of the Mediterranean high mountain. Additionally, L. aeruginea subsp. pruinosa is here raised to species rank, L. pruinosa, and therefore a new combination is proposed. The value of seed characters in Linaria taxonomy is discussed based on newly discovered infraspecific variability in several taxa. 2023-07-28T09:51:38Z 2023-07-28T09:51:38Z 2023-07-13 info:eu-repo/semantics/article Blanca López, G. et al. Linaria sagrensis (Plantaginaceae), a new high mountain species from the SE Iberian Peninsula. Nordic Journal of Botany 2023: e04022. [https://doi.org/10.1111/njb.04022] https://hdl.handle.net/10481/84104 10.1111/njb.04022 eng http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional Wiley