Zingiberaceae is the largest family of the order Zingiberales containing more than 1600 species and 200 genera among which Hedychium is the medium sized ornamental genus containing near about 40-50 speciesmostly distributed throughout the tropics and sub tropics of the world. Being aromatic and rich in diverse bioactive compounds plants of this family are economically, ethnomedicinally and pharmaceutically very important. Apart from their traditional use as spices, food, ethnomedicine, dyes, perfume etc., they have got a huge future potential in new drug development due to their antimicrobial, anti-inflammatory, anti-diabetic, anti-cancer and antioxidant characteristics. In the present study, the ethnomedicinal uses of Hedychium coronarium has been documented. In addition to this the antimicrobial properties of this plant have been examined by disc diffusion method. It has been concluded that H. coronarium exhibited remarkable anti-bacterial property against the gram-positive bacteria Staphylococcus aureus than gram-negative bacteria Escherichia coli. The GCMS analysis reveals the presence of 18 compounds which are responsible for the medicinal properties of this plant.

The presence of phytochemicals is not uncommon in the species belonging to the genus Curcuma owing to its medicinal properties. It is used since ancient times in a variety of Indian medications. Being edible, it also serves to supply the body with protein and carbohydrates besides other nutrients present in it. The study was undertaken to determine the composition of carbohydrate, protein and phytochemicals of some selected species of Curcuma viz., C. longa, C. caesia, C. aromatica, C. amada and C. angustifolia collected from the Northern coastal region of Odisha, India. The present study reveals that among these species highest amount of protein was present in Curcuma longa (48.79%) whereas highest amount of carbohydrate was present in Curcuma angustifolia (20.36%). Alkaloid, Glycoside and phenolics are the common secondary metabolites present in all these five Curcuma species.

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This paper deals with the studies of some Pteridophyes in Jajpur district of Odisha. A survey has been conducted during 2020-2022 in different areas of Jajpur district to document the pteridophytes. Extensive as well as intensive floristic studies have been conducted in these areas, voucher specimens have been collected, identified and preserved in the form of herbarium following standard methods. The results revealed 15 species of Pteridophytes under 11 genera and 11 families which not only fulfil the basic needs of the local people but also maintain ecological balance in this region. Further research is necessary to promote conservation of this biodiversity in this region.

The present paper deals with the documentation of invasive alien aquatic species diversity in Jajpur district of Odisha. Floristic studies have been conducted during 2019-2021 in different aquatic or wetland habitats of Jajpur district. Extensive as well as intensive floristic studies in these areas have been conducted, voucher specimens were collected, identified and preserved in the form of herbarium following standard method. The result revealed that there are 47 aquatic plant species under 35 genera and 27 families. Among these, 22 species are marshy, 14 species are amphibious, 05 species are free floating and 06 species are fixed floating plants. Most of the species are the native of Tropical America and Tropical Africa and few of them are from other countries.