Over 600 species of yams belong to the genus Dioscorea but about 10 species are cultivated. Yams are a very important tropical crop, mainly grown in Africa, Asia, the Pacific and South America. On 8.7 million hectares...
Conservation of orchid species (Orchidaceae) can be challenging, particularly for a small Diuris group of four species from southeastern Australia. To determine best conservation practices for the four species, Ahrens...