 The species used for the hull planks was not positively identified but is thought to be Amoora of the <unk> family . The timber for the frames was similarly not definitively determined , although one frame was probably of Amoora or of the Afzelia genus of the Fabaceae family . Afzelia is interesting in that the three main species A. africana , A. <unk> and A. <unk> are mostly found in a small part of Africa , stretching from the mid @-@ western coast in a thin band towards the east coast and stopping short of it by a couple of hundred miles . 
