Read the following features regarding a specific pteridophyte: (i) The sporophylls form distinct compact structures called strobili or cones. (ii) It produces two kinds of spores, macro (large) and micro (small) spores. Identify the plant from the given options.

Step-by-step solution

According to NCERT, sporophylls form distinct compact structures called strobili or cones in Selaginella and Equisetum. Genera like Selaginella and Salvinia produce two kinds of spores (macro and micro spores) and are known as heterosporous. Equisetum is homosporous, while Salvinia lacks distinct strobili. Pteris is homosporous and lacks strobili. Thus, Selaginella is the only given pteridophyte that possesses both strobili and heterospory. Answer: Selaginella