Dipsacales is an asterid angiosperm clade of ca. 1100 species, with most of its lineages occupying temperate regions of the Northern Hemisphere. A recent phylogenetic analysis based on 7593 nucleotides of chloroplast DNA recovered a well-resolved and strongly supported phylogenetic hypothesis, which we use here to estimate divergence times within the group. A molecular clock is strongly rejecte...

In vitro propagation method was developed for obtaining large number of plantlets of Valeriana wallichii DC. (Valerianaceae), an indigenous high value medicinal and aromatic plant species of Indian Himalayan region, using nodes of in vitro grown seedlings. High frequency shoot proliferation was induced in explants cultured on Murashige and Skoog (MS) medium supplemented with different concentra...

Valeriana wallichii (Family Valerianaceae), popularly named as Indian valerian, exists as three chemotypes. Aim of the study was to evaluate the effect of V. wallichii chemotype (patchouli alcohol) extract (DCME) and essential oil (VPAEO) on experimental models of nociception and to elucidate its possible mechanism of action. Analgesic effect was evaluated using acetic acid induced writhing and...