Erysimum pusillum, Bory & Chaub.

11. E. pusillum Bory & Chaub. in Bory, Expéd. Sci. MoréeS'. 190 (1832).

Caespitose perennial up to 40 cm; hairs medifixed. Lower leaves 0-5-6 mm wide, filiform to lanceolate or oblong, green or grey-green. Pedicels 0-5-3(-4) mm in flower, up to 6 mm in fruit. Sepals 5-8(-9) mm, saccate at base; petals 10—15(—16) x 3-4 mm, pubescent on the back; anthers 2-2-5 mm. Siliqua 20- 60(-70) x 1—1-6(—2) mm, dorsally compressed; style 0-5-4 mm. Seeds 1-5-3-5 mm. Cliffs and rocks.? • Balkan peninsula. Al Bu G r Ju. Often confused with 8 in the N. part of its range. Very variable in habit, leaf-shape, siliqua-, style- and seedsize. Many local populations occur, often showing a unique combination of these characters, and these have variously been referred to as distinct species, or subspecies or varieties of E. pusillum . Only the following seem to merit recognition as subspecies. 1 Siliqua patent to erecto-patent; basal leaves linear-lanceolate

(c) subsp. hayekii 1 Siliqua erect to erecto-patent; basal leaves linear to linearlanceolate

2Siliqua 1-3-2 mm wide; seeds 2-5-3-5 mm. (b) subsp. parnassii

2 Siliqua 1-1-5 mm wide; seeds 1-5-2 mm. (a) subsp. pusillum