Within the genus Postia, the P. caesia complex forms a distinctive morphological group. Based on recent molecular data, the current taxonomic status of the P. caesia complex is discussed and the nomenclature of the related taxa is revised as well. New combinations are: Postia subg. Cyanosporus, Postia africana, Postia amyloidea, Postia caesioflava, and Postia coeruleivirens.

Castelnuovo–Mumford regularity is one of the most important invariants in commutative algebra. It has been investigated by various authors from different point of view. One of the interesting properties of regularity is its asymptotic behavior. In this talk first we will see some well-known facts of regularity and then I will present some known results of asymptotic behavior of quadratic square...

Flowers of Anchusa strigosa Lab. (Boraginaceae) used traditionally in Iraq for curing many kinds of diseases including diabetes. The present study was carried out to evaluate the antidiabetic activity of aqueous extract of flowers of A. strigosa in streptozotocin (STZ)-diabetic rats. The aqueous extract of A. strigosa flowers was administered orally (250 mg/kg and 500 mg/kg) to diabetic rats fo...

To resolve phylogenetic relationships among all genera and subgenera in Osmundaceae, we analyzed over 8,500 characters of DNA sequence data from seven plastid loci (atpA, rbcL, rbcL–accD, rbcL–atpB, rps4–trnS, trnG–trnR, and trnL–trnF). Our results confirm those from earlier anatomical and single-gene (rbcL) studies that suggested Osmunda s.l. is paraphyletic. Osmunda cinnamomea is sister to th...

Mabberley, D.J. (Rijksherbarium, University of Leiden, Netherlands and Royal Botanic Gardens, Sydney NSW 2000, Australia) 1997. A classification for edible Citrus (Rutaceae). Telopea 7(2): 167–172. A workable Linnaean classification, taking into account recent chemotaxonomic advances, is proposed for edible citrus fruits currently referred to the genus Citrus. They are accommodated in three spe...