According to the national policy, overall forest and agroforestry cover in Rwanda is to increase up to 30% land cover by 2020. On the other hand, demographic data reveal that Rwanda's urban areas are among the fastest-growing on the continent. Unfortunately, there is only little information of the...

In this study, we describe the medicinal plants that have been reported to be antitumor agents and that have been used in ethnobotanic research in Brazil to answer the following questions: what is the abundance of plants reported to be antitumor in Brazil? Have the plant species used for tumor...

Climate change resulting from global warming is currently one of the global environmental issues of concern. Trees play a very important role in mitigating this problem through sequestrating carbon dioxide which is one of major green house gases. The importance of trees is incontestable; they have...

It has been shown previously that the laticifer fluid of Calotropis procera (Ait.) R.Br. is highly toxic to the egg hatching and larval development of Aedes aegypti L. In the present study, the larvicidal potential of other laticifer fluids obtained from Cryptostegia grandiflora R.Br., Plumeria...

Use of synthetic pesticides in developing countries is not only limited by their being expensive but also the small (uneconomic) fields whose limited production costs cannot offset costs of agricultural implements like agro-chemicals. Subsistence farmers, therefore, have no choice but to use local...

Group meetings and individual farm visits were used to establish current tree planting practices in the smallholder farming sector of Zimbabwe. The number of tree species planted in each of the 8 districts studied ranged from 9 to 27, with 17 species occurring in at least half of the districts....

Ethanolic extracts of 58 Malaysian plants belonging to 24 different families were screened for antifungal activity against seven plant pathogens using the filter paper disc diffusion technique. Two varieties of Piper betle, showed strong activity against all the pathogens tested (Colletotrichum...

Eight species (E. formosana, E. jolkini, E. peplus, E. shouanensis, E. tarokoensis, E. tirucalli, E. cyanthophora and E. heterophylla) are included in this revisional study, which comprises a discussion of taxonomic characters, illustrations, geographical distribution maps and an identification...

In this last part of a survey on medicinal plants used in 5 regions of Eastern Tanzania (Coast, Dar es Salaam, Kilimanjaro, Morogoro and Tanga), information on 53 Angiosperm species belonging to the families Sapotaceae, Scrophulariaceae, Simaroubaceae, Smilacaceae, Solanaceae, Sterculiaceae,...

Euphorcinol, a new triterpene of the friedelane group, was isolated from the fresh and undried stem bark of E. tirucalli. Its structure was assigned to it on the basis of chemical and spectroscopic studies, including 2D-NMR.