Buchanania

This genus consists of trees with , unlobed leaves arranged alternately on the twigs. Flowers are produced in or terminal panicles. Flowers are bisexual, i.e. they have both male and female organs. They usually have 5 lobes and 5 petals, sometimes 4 or 6, and are pale green to white. There are 10 stamens and 4–6 carpels, only one of which is fertile. Fruits are more or less lens-shaped drupes with a bony or woody , and contain a single seed. Unlike other genera in the family, Buchanania does not appear to cause contact dermatitis. ==Taxonomy==

The genus Buchanania was erected in 1801 by German botanist Kurt Polycarp Joachim Sprengel based on a collection of plant material by Francis Buchanan-Hamilton from what is now Myanmar. The genus was named after the collector. ==Distribution==

The genus is native to areas from South and Southeast Asia, extending to northern Australia and the western Pacific. The full distribution is as follows: • Indian subcontinent: Assam, Bangladesh, India, Nepal, Sri Lanka, West Himalaya • China & East Asia: China South-Central, Hainan, Taiwan, • Indo-China: Andaman Is., Cambodia, Laos, Myanmar, Nicobar Is., Thailand, Vietnam • Malesia: Borneo, Jawa, Lesser Sunda Is., Malaya, Maluku, Philippines, Sulawesi, Sumatera • Papuasia: Bismarck Archipelago, New Guinea, Solomon Is. • Australia: Northern Territory, Queensland, Western Australia • Western Pacific: Caroline Is., Fiji, Samoa, Santa Cruz Is., Vanuatu ==Species==

, Plants of the World Online recognises 26 species in the genus, as follows: • Buchanania abrahamiana – India • Buchanania amboinensis – Maluku Islands, New Guinea, Solomon Islands • Buchanania arborescens – India, Taiwan, tropical Asia, northern Australia, western Pacific • Buchanania attenuata – Santa Cruz Islands, Fiji • Buchanania axillaris – India, Sri Lanka • Buchanania barberi – India • Buchanania engleriana – Caroline Islands • Buchanania evrardii – Cambodia • Buchanania ferruginea – India • Buchanania glabra – India, Indo-China • Buchanania insignis – Borneo, Philippines • Buchanania lanceolata – southwestern India, Myanmar • Buchanania lancifolia – Andaman Islands, Bangladesh, Myanmar • Buchanania lanzan – Indian subcontinent, southern China, Indo-China • Buchanania macrocarpa – Maluku Islands, Papuasia • Buchanania mangoides – Queensland • Buchanania merrillii – Samoa • Buchanania microphylla – Hainan, Philippines • Buchanania nitida – Philippines, Maluku Islands • Buchanania obovata – northern Australia • Buchanania palawensis – Palau • Buchanania reticulata – Indo-China • Buchanania sessifolia – Assam, Indo-China, western Malesia • Buchanania siamensis – Indo-China • Buchanania splendens – Andaman Islands & Nicobar Islands, Sumatra, Borneo • Buchanania vitiensis – Fiji Formerly placed here The following names were previously recognised as species of Buchanania. • Buchanania cochinchinensis – now Glycosmis cochinchinensis • Buchanania yunnanensis – now Spondias pinnata • Buchanania zeylanica – now Mangifera zeylanica ==References==