Linaria pseudamethystea, from the south-western part of the Iberian Peninsula, is here newly described, illustrated, and compared with its morphologically closest relatives from L. sect. Supinae: L. amethystea, L. semialata, and L. diffusa. The species is characterized by being annual and glabrous and by having a loose inflorescence; calyx lobes unequal; corolla blue-violet, with conspicuous dark veins and yellow to orangish palate, abaxial lip with two prominent humps and ornamentation reticulate and often with two thick spots, and spur equalling the length of the rest of the corolla, curved, usually dark blue-violet; capsule globose and glabrous; seeds black with densely papillose and non-tuberculate disk, and non- thickened wing. L. pseudamethystea is an endemic species, whose general morphology and distribution area overlap with that of L. amethystea, causing confusion between the two species and misidentification of their populations. The new species grows in ephemeral therophyte pastures of siliceous mountains, from the east of the province of Seville (Spain) to the Algarve and Alentejo (Portugal).
Linaria subbaetica, a new species from the south of the Iberian Peninsula, is here described, illustrated, and compared with its morphologically closest relatives from L. sect. Supinae: L. badalii, L. caesia, and L. supina. The species is characterised by being annual, and having usually revolute leaves, a short and corymbiform inflorescence at anthesis with a pilose-glandulose axis, a white to pale-yellow corolla (yellow to orangish palate), bearing a spur equalling to slightly longer that the rest of the corolla, and black seeds with a tuberculate and papillose disc surface and a thickened wing. L. subbaetica is an endemic species, growing on calcareous mountains, in the Sierras Subbéticas Natural Park, Córdoba province (Andalusia, Spain).
Se cita por primera vez en la Península Ibérica y en Europa Occidental la presencia de Eremopyrum orientale (L.) Jaub. & Spach, un taxon anual que se desarrolla en los medios semiáridos de la Hoya de Guadix (Granada). Las características ambientales propias de estos ambientes (sustratos poco favorables para el desarrollo de la vida vegetal junto a una alta irregularidad intra e inter anual de las precipitaciones) parecen ser la causa de no haber sido localizada hasta ahora. Esas mismas características ambientales y la, aparentemente imparable, expansión de las actividades antropocéntricas nos hacen considerar este taxon como amenazado bajo la categoría de En Peligro (EN) con el criterio: A4ac; B1ac(i,ii,iii,iv)+2ac(i,ii,iii,iv)Key words: Flora, Europa, Poaceae, Eremopyrum.Palabras clave: Flora, Europa, Poaceae, Eremopyrum.
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