SAMERARIA STENOPHYLLA (BRASSICACEAE), A NEW RECORD FOR THE FLORA OF IRAN

摘要: Introduction Iran, with about 120 genera representing 358 species of Brassicaceae (Akhani 2003), is one the most important diversification centers family in world. After publication for Flora Iranica (Hedge 1968), several new or combinations have been proposed Iran (see example: Sajedi & al. 2004, Akhani 2003, Khosravi Kavousi 2001, Sonboli 2000, Moussavi 1985, Mozaffarian Assadi 1983). Sameraria Desv. a genus nine distributed solely Central and SW Asia (Appel Al-Shehbaz 2003). It closely related to Isatis shows characters common it, namely habit, leaves, inflorescence flowers. However, it separated from by having silique and/or silicule fruits possessing short distinct style, instead mostly sessile stigmas. In framework preparing revision its allies as M.Sc. thesis first author, we could identify stenophylla among material deposited Iranian herbaria, including Ferdowsi (Mashhad) University (FUMH). This has not previously reported Iran. record elevates number five out six Hedge (1968) entire area. Rech. f. Koeie (sect. Sameraria), Fig. 1. Specimens seen: IRAN: Prov. Semnan, 6 km W Eyvanaky, 1 May 1974, Iranshahr Riedl s.n. (IRAN). Khorassan: Shahrud Sabzevar, Delbar village, 1100 m, 28 April 1975, 30756 Khorassan, E. Ghain, Petergan, Yazdan 450 Joharchi Zangooei 16005 AFGHANISTAN. Kandhar, Akhundzadeh, 19 Shar-e Safa on road Kandahar, 1170 15 1972, Anders 8374 (MSB). Annuals 15−40 cm tall, glabrous except fruits, branched at base. Basal leaves obovate oblong, 2−8 × 1−1.5 (−2.2) cm, lobed margins, obtuse rounded tip, cuneate base; petiole 0−1 long. Cauline linear sagittate cordate base, narrowing towards apex. Fruiting pedicel 7−10 mm long, thin, deflexed. Sepals 3.8−4.5 1.5 mm, glabrous, violet pale yellow. Petals 6−7 2−2.5 obovate, Long filaments 3.5−3.8 ca. 2.5 Fruit indehiscent, 1-seeded, orbicular