Unusual Presence of Tetramerous and Hexamerous Corolla in Evolvulus Nummularius L.

Jaswinder Kaur, Satya Narain

Abstract


The genus Evolvulus (drived from evolve = to unroll, not twining as in Convolvulus) of family Convolvulaceae was first described in the second edition of Species Plantarum (Linnaeus, 1762). It consists of small herbs or under shrubs distributed in the tropical and warm temperate regions of the world. It is represented by more than 70 species in the world but only 3 species are reported from India, viz. Evolvulus alsinoides L., Evolvulus glomeratus Nees & C. Mart. (Cultivated) and Evolvulus nummularius L.


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