The taxonomically important characters and subgeneric subdivision of Dichagyris are presented with several historical nomenclatural considerations. Subdivision D. vallesiaca is revised based on the type material known subspecies. psammochroa group revised, description a new species, kurbatskyi from Kazakhstan, one subspecies, kopetdaghimena Kopet-Dagh massif. taftana species (D. guentereberti A...

xii British Columbia, Canada's most westerly province, has a bounty of biological diversity. British Columbia's snowclad peaks, rain-drenched forests, arid grasslands, all sizes of rivers, lakes, and wetlands, and a long and rugged coast provide habitats for more species of living organisms than are found anywhere else in Canada. However, this very diversity means that there is much to be disco...

The fruits of Cerasus humilis have a unique and pleasant aroma. In this study, the volatile compounds ripe 53 C. genotypes were extracted via headspace solid-phase microextraction (HS-SPME) identified gas chromatography coupled with mass spectrometry (GC-MS). total, 253 detected, among which esters terpenoids most dominant components. We also found that total volatiles contents varied significa...