Key points are not available for this paper at this time.
A wider range of distribution for five taxa of Ophioglossum, viz., O. reticulatum, O. polyphyllum, O. costatum, O. gramineum and O. nudicaule var. typicum collected from the areas coming under the jurisdiction of Southern Circle, Botanical Survey of India, are presented. A map showing the new and already known distributions for these taxa is included. Descriptions, Illustrations and a key to these five species are also given.
Balakrishnan et al. (Fri,) studied this question.