A synoptical key to the three orders Annonales, Berberidales, and Nymphaeales of the superorder Annoniflorae is presented with discussion as to why these orders, the core of the histmical Ranales, are considered to be closely related to one another but divergent from the similarly plimitive Hamamelidales of the Hamamelidiflorae, and why the names Annonales and Berberidales are preferred to the ...

Piper capense L.f. (Piperaceae) is used traditionally in South Africa as a sleep inducing remedy. Bioassay-guided fractionation of the roots of P. capense led to the isolation of piperine (1) and 4,5-dihydropiperine (2), which showed moderate affinity for the benzodiazepine site on the GABA(A) receptor (IC(50) values of 1.2 mM and 1.0 mM, respectively). The present study suggests that strict st...

This study investigated the possible antinociceptive effect of the crude extract, fractions and pure compounds (three alkaloids) obtained from fruits of Piper tuberculatum JACQ. (Piperaceae) in acetic acid-induced visceral pain in mice. Oral administration of crude extract and fractions (CH(2)Cl(2), EtOAc, methanol and hexane) (3-300 mg kg(-1)) caused a dose-related and significant inhibition o...

A number of prenylated benzoic acids derivatives with interesting biological activities have been previously isolated and characterized from different species of piperaceae family. Several Piper species contained structurally similar compounds with diverse biological activities such as anti-bacterial, anti-fungal, insecticidal as well as anti-parasitic all of which produces compounds that can b...

Red betel (Piper crocatum) is a plant that often used as medicine. belongs to the Piperaceae family, grows vines with heart-shaped leaves and stems, which grow alternately from stem appearance of are silvery red shiny when exposed sunlight. contains flavonoid compounds, alkaloids, tannins, phenolic compounds essential oils. The results showed ethanol extract leaf active such flavonoids phenolic...