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回顾Malvacae和茜草科的家人

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锦葵科、锦葵、锦葵目,是一种双子叶开花植物的家庭,组成的约244属,约4225种,分布于热带到温带地区。植物草本植物、灌木或树木,通常有星状毛。茎与粘液腔bastfiber健壮。叶子很简单,互生,深深分裂,锯齿,很少完整,掌有纹理的,乔木,有柄的。花两性,辐射对称的,孤独的,簇生的,或安排酶类或圆锥花序。萼状总苞通常存在,形成一个总苞在花萼,三到许多浅裂的。萼片3 - 5,免费或原生,有瓣的。花瓣5,免费的,旋转,贴生的雄蕊的列在基地。雄蕊很多,细丝原生成管,称为adelphous。1-celled囊里。 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. The present study records 90 taxa recorded from southern Assam, four of which are endemic. Chassaliacurviflora (Wall.)Thwaites var. ellipsoides Hook. f. and MussaendakeenaniiHook.f. are rediscovered after a gap of 140 years. MussaendacorymbosaRoxb.is reported for the first time from northeastern India, while Chassaliastaintonii (H.Hara) Deb and Mondal is reported as a new record for Assam.

Amit Chaudhari Pradip Ghogare

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