I think it is a Species of Arisaema of Arecaceae but I am unable to confirm because the plant is only in fruiting stage. with a circumsessile fruit, without any vegetative part. please give the photographs of the vegetative parts of the plants.
Only with such a fruit it is difficult to identify. Kindly get photographs in vegetative and flowering stages. Usually in Araceae the spathe get withered while maturing of the fruits. But here there is an accrescent structure present and I am not familiar with such a structure in Araceae. Please try with Dr. M. Sivadasan, Professor, King Saud University, Riyadh.
Yes I am Sorry actually I would like to mentioned it as a member of Arisaema of the family Araceae and unfortunately I mentioned it as Arisaema of Arecaceae. thanks a lot to detect the mistake.