Fig. 2From: Rust HUBB: DNA barcode-based identification of PuccinialesTelial sori of Puccinia spegazzinii on a leaf of Mikania sp. This leaf contains numerous sori suitable for excision. Following our procedural guidelines, about ¼ of the sorus in the center of the leaf could be excised with a razor blade, and then crushed and used for extractionBack to article page