the anthomyiid fly, pegomya bicolor (wiedemann, 1817), is newly recorded from iran. it was collected during surveys on biocontrol agents of rumex spp. (polygonaceae) in urmia region, north west of iran. this leaf-mining fly is widely distributed in the palaearctic region on several species of rumex. voucher specimens are being held at the natural history museum of urmia university.

Rheum turkestanicum Janischew. (Polygonaceae) is a plant that grows in central Asia and in north-east of Iran. Traditionally, people use roots of R. turkestanicum as an anti-diabetic and anti-hypertensive as well as anticancer agent. In this study the cytotoxicity and apoptogenic properties of ethyl acetate (EtOAc), n-hexane and H2O extracts from Rheum turkestanicum Janischew. (Polygonaceae) ro...

– The achene morphology of 20 taxa in five sections of Polygonum s.l. from Thailand was studied and compared in detail using stereoscopic light and scanning electron microscopy. The achene of all Thai taxa is typically lenticular or triangular in shape. Three different morphological types are described according to the features of the achene surface; smooth-undulate, a star-like form and reticu...