| Brassicaceae |
|---|
Isatis buschiana SCHISCHKIN |
Isatis buschiana SCHISCHKIN |
Isatis L.
|
| I. buschiana Schischkin in Ber. Tomsker Staatsuniv., 80: 460 (1929). Figure 16, p. 293. Biennial (or annual?). Stem 30-75 cm, often purplish. Leaves thin, the basal oblong, dentate, withered at flowering time; median stem leaves oblong-lanceolate, entire or dentate, acutely auricled, glabrescent, often with long stiff hairs on the midrib below, or hirsute. Flowers 3 mm. Fruits linear, median loculus almost wingless, 14-16 x 2.5-3 mm, compressed-cylindric and swollen below the loculus, widened into an oblong-obovate wing above, midrib thickening when ripe. Fl. 4-7. Dry open habitats, 800-1800 m. Lectotype: [Turkey B10 Ağri] dlstr. Bayazet [Doğubayazit] in declivitatibus siccis prope pag. Burnubulak, 26 v 1916, Schischkin (LE). Scattered, chiefly in S. & E. Anatolia. A4 Kastamonu: Kastamonu to Küre, D. 21647! Zonguldak: Safranbolu. Wiedemann! B8 Muş: nr. Bostankaja, 1620 m, 27 v 1916, Schischkin (syntype)! B9 Bitlis: Bitlis, 1450 m, Frödin 235 (as I. iberica Stev.)! C2 Muğla: Muğla to Kale, 4 km from Muğla, 840 m, Dudley, D. 35069! C5 Niğde: above Bulgar Maaden, 1700 m, Siehe 1913: 479! Içel: Gülek Boğaz, 27 vi 1855, Bal.! C6 Maraş: Kuru Da., Zeytun, 1500 m, Balls 1020! Transcaucasia, N. Iraq, W. & N.W. Iran. Ir.-Tur. element. A variable, rather widespread but overlooked species, closely allied to the Transcaucasian I. iberica Stev. which has been erroneously recorded from Turkey; the latter differs in its shaggy indumentum and pinnately lobed basal leaves. Material of I. buschiana without ripe fruit may be readily mistaken for I. tinctoria or I. lusitanica. I.glabrisiliqua Blakelock (from N. Iraq) may be conspecific. but also intergrades with I. guestii Blakelock from the same area. The group requires further collecting and study. |