h:/3D/Phyton/Phyton-49-1/08-Zamani Auftrags-Nr.: 320056 Seite 105 Pyrus ghahremanii spec. nova and P. giffanica spec. nova (Rosaceae-Maloideae) from Iran By Asghar ZAMANI*), Farideh ATTAR*) and Mohammad Reza JOHARCHI**) With 9 Figures Received February 24, 2009 Key words: Rosaceae, Maloideae, Pyrinae, Pyrus ghahremanii spec. nova, Pyrus giffanica spec. nova. ± Distribution, phenology, taxonomy. ± Flora of Iran. Summary ZAMANI A., ATTAR F.&JOHARCHI M. R. 2009. Pyrus ghahremanii spec. nova and P. giffanica spec. nova (Rosaceae-Maloideae) from Iran. ± Phyton (Horn, Austria) 49(1): 105±115, with 9 figures. In this paper, two new species namely Pyrus ghahremanii ATTAR &ZAMANI and P. giffanica ZAMANI &ATTAR. Belonging to Pyrus sect. Pashia KOEHNE and sect. Xer- opyrenia FEDOROV respectively, are described from Iran. The complete description of these species is provided on the basis of both flower and fruit materials of the same individuals, a morphological comparison of the species with their most closely re- lated species, information on phenology and ecology, a distribution map, drawings of their fruits and flowers and finally photographs of their diagnostic characters. The main characteristics of P. ghahremanii are pyriform fruits on thick pedicels, of P. giffanica the leaves pilose only on the lower side and the appressed sepals of the fruit. Zusammenfassung ZAMANI A., ATTAR F.&JOHARCHI M. R. 2009. Pyrus ghahremanii spec. nova and P. giffanica spec. nova (Rosaceae-Maloideae) from Iran. [Pyrus ghahremanii spec. nova und P. giffanica spec. nova (Rosaceae-Maloideae) aus Persien]. ± Phyton (Horn, Aus- tria) 49(1): 105±115, mit 9 Abbildungen. 105 Phyton (Horn, Austria) Vol. 49 Fasc. 1 105±115 &. &. 2009 *) A. ZAMANI, Dr. F.ATTAR, Central herbarium of University of Tehran, School of Biology, University College of Science, University of Tehran, P. O. Box 14155-6455, Teharn, Iran; e-mail: asgharzam@khayam.ut.ac.ir **) M. R. JOHARCHI, Ferdowsi University of Mashhad Herbarium (FUMH), Mashhad, Iran.