Which one of the following is not essentially a species of the Himalayan vegetation?

1. Himalayan vegetation varies greatly with altitude, encompassing tropical, subtropical, temperate, and alpine zones. 2. Juniper, Silver fir, and Spruce are coniferous trees typically found in the temperate and sub-alpine zones of the Himalayas. 3. Mahogany is a type of tropical hardwood tree found primarily in the tropical rainforests of the Americas and Africa. 4. Therefore, Mahogany is not essentially a species of the Himalayan vegetation.