Two botanists studied different families of plants. John studied Loranthaceae and Mary studied Brassicaceae.
Which botanist studied more intertropical plants?
Loranthaceae (John's family of study) are generally arbustivas, epifitas, hemiparásitas u holoparásitas, siempre con clorofila (a veces poca). They are mostly intertropical plants.
On the other hand, Brassicaceae (Mary's family of study) includes mustards, cabbages, and related plants, many of which are cultivated as vegetables or spices. They are not specifically intertropical plants.
Based on this information, John, who studied Loranthaceae, would have studied more intertropical plants than Mary.
The answer is: John