Molecular Systematics - APG III System of Classification of Flowering Plants

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Still in many countries 'Bentham & Hooker System of Classification' is widely used across the world as it is useful to identify the plants in the field. However, this system of classification does not speak about evolutionary relationship of plants.

A modern system for flowering plants was formed in 1990’s by the Angiosperm Phylogeny Group which involves few eminent botanists from across the world. Some countries are now using APG III system.  Herbarium arranged as per linear sequence of DNA and starts with Amborellaceae-1 and ends with Apiaceae-413.

Ranee Prakash, Curator-Flowering Plants, Dept. of Life Sciences, The Natural History Museum, London, U.K. explains the salient features of  'APG III System of Classification of Flowering Plants' through power point presentation.

The presentation is a part of her lecture given at Department of Botany, Ranchi University, Ranchi, Jharkhand during her visit to India.

Epiphyllum oxypetallum (Brahmakamal) : Orchid Cactus- An interesting plant

Dr Ichha Purak
Professor, Ranchi Womens College
Ranchi, Jharkhand, India

Epiphyllum oxypetalum is a very interesting and unique plant. It belongs to Family Cactaceae. It is commonly known as Night blooming Cereus, Queen of the night, Lady of the night as its beautiful Lotus like flower blooms late night. In India it is called as Brahma Kamal ( ब्रह्मकमल ) and is treated as a sacred plant. It is popularly known as Orchid Cactus as the flower has orchid like beauty and plant resembles cactus in habit. It is known by different common names in different parts of the world viz. Jungle cactus, Dutchman's Pipe