Fructifications of glossopteridae from India.

K.R. Surange; Shaila Chandra

doi:10.54991/jop.1972.1462

Authors

K.R. Surange Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
Shaila Chandra Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1972.1462

Abstract

Three new species of Scutum, one species of Cistella, and a new genus of one winged seed, Indocarpus, are described in this paper. Scutum sahnii has been found attached to a leaf with venation of Glossopteris longicaulis type. Scutum is interpreted as a gymnospermous female reproductive organ of some Glossopteris species consisting of a bilaterally symmetrical receptacle bearing a large number of naked ovules and covered on one side by a protective scale-leaf with Glossopteris type of venation. Both the scale-leaf and the ovule-bearing receptacle are carried on a common pedicel which, in its turn, is attached to the petiole of a Glossopteris leaf. Dictyopteridium is also shown to be a fructification similar in organization to Scutum, possessing a cylindrical ovule-bearing head and a scale leaf covering one side of the fructification. It is also suggested that some Cistella types of fructifications might be the seedless receptacles of Scutum.

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