Complex sentence: Up to 12 cm (5 in) wide, the cap is beige to olive with yellow pores and an attractive stalk, yellow above to pink-red below, and with a straw colored network (reticulation).
Split into simpler sentences: Up to 12 cm (5 in) in diameter, the cap is beige to olive with yellow pores beneath. The attractive stalk, is yellow above to pink-red below, and with a straw colored network (reticulation).