A replica of a 3:1 blend of linear with lightly branched polyethylenes (BPE has 26 branched per 1000 backbone carbon atoms) after isothermal crystallisation at a temperature at which the LPE but not the BPE can crystallise. This sample crystallised from a phase separated melt. There are clearly two lamellar types (The isothermal crystallisation makes the distinction clearer). The thick, LPE rich, lamellae crystallised in sheaf-like groups, from LPE rich droplets contained in a BPE rich matrix. The sheaf-like arrangement is representative of one of the initial stages in spherulite formation.