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Research Article Open Access

Review on Malvacae and Rubiaceae Family


he Malvaceae, or the mallows, in the order of Malvales, is a family of dicotyledonous flowering plants, consisting of about 244 genera with approximately 4225 species, distributed in tropical to temperate regions. Plants are herbs, shrubs, or trees, usually with stellate hairs. Stems are bastfiber robust with mucilage cavity. Leaves are simple, alternate, palmately divided, serrate, rarely entire, palmately veined, with stipules, and petiolate. Flowers are bisexual, actinomorphic, solitary, fascicled, or arranged to cymes or panicles. Epicalyx are often present, forming an involucre around calyx, three to numerous lobed. Sepals are 3–5, free or connate, valvate. Petals are five, free, rotating, adnate to staminal column at base. Stamens are numerous, filaments connate into tube, known as adelphous. Anthers are 1- celled. Pollen grains are large and spiny. Analysis of diversity, distribution and endemism of the family Rubiaceae for southern Assam has been made. The analyses are based on field observations in the three districts, viz., Cachar, Hailakandi and Karimganj, as well as data from existing collections and literature.

Amit Chaudhari, Pradip Ghogare

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