the genus tortula includes about 114 species in the world and 18 species were found in iran. in the present paper, t. vahliana (schultz) mont. is reported for the first time from iran.

Recent fieldwork in Tunisia resulted the discovery of one liverwort (Saccogyna viticulosa (L.) Dumort.) and three mosses (Orthotrichum bistratosum (Schiffn.) J.Guerra, Pseudotaxiphyllum elegans (Brid.) Z.Iwats., Tortula protobryoides R.H.Zander) new for mainland Africa. The localities are briefly described with a focus on habitats, accompanying species, comments taxonomy variability. Conservati...

Terpenoid resin is produced by all families and most genera of the order Coniferales (the conifers), and the distribution of terpenes present in most conifer resins is characteristic of the originating family. Analyses of early Cretaceous (Barremian) amber (fossil resin) from the English Wealden, Isle of Wight, southern England, by pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), indi...

The fatty acid composition of the phospholipids from the desiccation-tolerant moss Tortula ruralis (Hedw.) Gaertn, Meyer and Scherb and the desiccation-intolerant moss Cratoneuron filicinum has been determined. No changes in composition occur in either moss as a consequence of rapid drying, but, after slow drying, there is a decline in some unsaturated fatty acids. Upon rehydration of T. rurali...