To solve this problem, we need to identify which of the given plants have strobili or cones. Let's analyze each option:$\newline \bullet$Option 1: Pteris$\newline$ - Pteris is a genus of ferns. Ferns reproduce via spores and do not produce strobili or cones.$\newline \bullet$Option 2: Marchantia$\newline$ - Marchantia is a genus of liverworts. Liverworts reproduce through spores and do not form strobili or cones.$\newline \bullet$Option 3: Equisetum$\newline$ - Equisetum, commonly known as horsetails, is a genus of vascular plants that reproduce via spores.$\newline$ - Equisetum produces strobili, which are cone-like structures that contain sporangia.$\newline$ - Therefore, Equisetum is the correct answer as it has strobili or cones.$\newline \bullet$Option 4: Salvinia$\newline$ - Salvinia is a genus of aquatic ferns. Like other ferns, they reproduce via spores and do not produce strobili or cones.$\newline$Therefore, the correct option is Option 3: Equisetum, as it is the only plant among the options that produces strobili or cones.