By Li-mei Hoang LONDON Reuters – Designers took inspiration from nature, sportswear and eclectic pattern mixes for their London Fashion Week collections, offering an array of glamorous gowns and sleek casualwear heavy with hand-crafted details. Burberry, Erdem and Marchesa showcased spring-summer collections that drew on the countryside — plants, flowers and botany — for their abstract prints, embroidery and lavishly embellished gowns. …