Cycas dharmrajii Lal Ji Singh;

References:

Cycas dharmrajii sp. nov. (Cyadaceae) from Andaman and Nicobar Islands, India - Lal Ji Singh- Nordic Journal of Botany Volume 35, Issue 1 February 2017 Pages 69–76 (Abstract- Cycas dharmrajii L.J.Singh (Cycadaceae), a new species from the Andaman Islands, India is described and illustrated, and its conservation status is assessed. An abnormal branching habit of the giant trunk, its swollen base, often branched, polymorphic aerial roots, medium-sized leaves, megasporophylls with well-defined 10–28 paired lateral hook-like structures and 1–3 pairs of ovules, 2-schizo-lysigenous mucilage canals in leaflet, and characteristic pitting on the periclinal walls of the epidermal cells of the leaflets distinguishes it from all previously known species. A key to the species of Cycas from the Andaman and Nicobar Islands is also provided.)