The mangrove associate Suaeda maritima (Amaranthaceae) formerly placed in the family Chenopodiaceae usually thrives in the estuaries, creek banks, backwaters, salt pans and salt marshes of coastal habitats and is documented for the first time from the southern Indian inland lake of Tamil Nadu. Detailed taxonomic and ecological observations were provided for this ecologically important species.

Mitrasacme Labill. represented by M. pygmaea R.Br. var. pygmaea collected from Cinque Wildlife Sanctuary, South Andaman is reported here as new distribution record to the Andaman and Nicobar Islands. Taxonomy, technical description, distributional map and a photo plate are provided for easy identification.

Mazus motuoensis W.B.Ju, Bo Xu bis & X.F.Gao (Mazaceae), a newly described species from China, has been discovered, collected and recorded for the first time from the state of Arunachal Pradesh in Indian Himalayan Region (IHR).

Jasminum adenophyllum subsp. saparlaense subsp. nov. (Oleaceae) is described and illustrated from the Saparla hills of Alluri Sitharama Raju district, Andhra Pradesh. The new taxon is closely related with the typical subspecies adenophyllum by its leaf shapes and sizes, inflorescences but differs by its villous stem, bracts and calyx.

The present study broadly focused on regeneration status, biomass, and carbon stock of Tectona grandis (teak) in three tropical moist deciduous forests, viz. Fatasil Reserve Forest (FRF), Gotanagar Reserve Forest (GRF), and Jalukbari Reserve Forest (JRF) of Kamrup Metropolitan district, Assam, Northeast India. The stratified random quadrat method was employed and individual no. of adult trees, saplings, and seedlings in the quadrats, and girth at breast height (GBH) of adult trees were recorded and used for calculating density and basal area respectively. Regeneration status was checked from the densities of seedlings, saplings, and adult trees. An allometric formula was employed to calculate biomass and carbon stock of the species. Teak exhibited good regeneration status (seedlings>saplings>adult trees) in JRF and GRF, while fair regeneration status (seedlings>saplings-¹), carbon stock (22.12-76.83 Mg C ha^-¹), and CO₂ equivalent (81.19-281.98 Mg ha^-¹) in the study sites. Therefore, the study is fundamental for intending a conservation strategy for teak and to raise awareness among the local people about its significance in mitigating global warming and climate change.