Cladostrobus Zalessky, 1918, is a male strobilus with spirally arranged microsporophylls, having a rhomboid lamina and a long stalk. The sporangia occur in groups. Microspores are of monosaccate type and are without a haptotypic mark. The name Cladaitina dibnerae gen. et sp. nov. is introduced for isolated spores of this kind. Cladostrobus may be a male strobilus of plants that bore Rufloria leaves. The group Cordaitales, as known now, comprises a heterogeneous assemblage of incompletely known plants, mostly sterile leaves. An artificial classification is proposed for sterile leaves, similar to the one already in vogue for dispersed spores and pollen. This classification is in fact a key for identification and cataloguing, and is not meant to show natural affinities.

Recently a large collection of Vertebrarias was made from Barakar and Raniganj Stages of the Lower Gondwanas. The specimens were studied for anatomical structures bv the "Dry Pull" method. One specimen from the Raniganj Stage shows anatomy different from that of V. indica and hence has been referred to a. new species V. raniganjensis. The collection also includes an axis cast with a small middle part not belonging to the xylem and which looks like a pith. As pith is not known in other species of Vertebraria, it has been given a new specific name V. myelonis. A specimen doubtfully referred to Ctenis by Srivastava (1954) has been found on reinvestigation to be a new species of Glossopteris -G. srivastavai. The anatomy of the midrib of G. srivastavai and V. raniganjensis is almost similar. It is probable that G. srivastavai was one of the leaves borne on an axis of V. raniganjensis.

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A new species of fossil wood, Dadoxylon jamudhiense, is described from the Raniganj stage of Jharia coalfield, Bihar. The wood is distinguished by the presence of a large percentage of partly biseriate xylem rays, 1-2 or 3 seriate, alternate or opposite, mostly circular radial pits and 1-4-simple and broadly oval to circular pits in the cross-field.