Linaria munbyana Boiss. & Reuter, Pugillus: 89 (1852).
Glaucous annual, glabrous or glandular-puberulent in inflorescence; fertile stems 1-7, 5-10 (-14) cm, decumbent or ascending, more rarely suberect, usually simple; sterile stems 0-5. Leaves of fertile stems 3-18 x 0.6-1.7 mm, linear or oblong, acute, flat, in whorls of 3-4 below, alternate above; leaves of sterile stems similar but in whorls of 3-4. Inflorescence with 1-6 flowers, dense in flower, somewhat lax in fruit, the axis sometimes sparsely puberulent. Bracts 2-6 (-9) mm, linear, acute. Pedicels 0-2.5 mm in flower and fruit, erect. Calyx-lobes subequal, 2.5-5 x 0.7-1.4 mm, linear, acute to subacute. Corolla 6-10 (-l3) mm, yellow, the palate orange-yellow; tube slender; adaxial lip sinus 1-2 mm; lower lip sinus 0.3-0.6 mm; spur 2.5-4 (-6) mm, slender, straight, shorter than rest of corolla. Capsule 3-5.5 mm, globose, glabrous. Seeds (1.2-) 1.5-1.7 mm, reniform-orbicular, plano-convex, blackish-brown; hilum somewhat broad; wing 0.3-0.4 mm broad, somewhat inflated, papillate towards disc; disc reniform, sparsely papillate, tubercles sometimes present, rounded, largest on convex face; periclinal wall of testa-cells tabular or papillate, verrucate, the anticlinal wall of testa-cells angular with ridge over junction. Modified from Sutton (1988).
W Mediterranean. Ag Hs Lu.
Type: ALGERIA: O1; in arenosis aux Andalous, Oran, ii 1851 Munby s.n. (lecto. (Valdés, 1970a: 100-101) G-BOIS!).