Swamp milkweed (Asclepias incarnata) seed. Swarthmore, PA.
Coneflower (Echinacea purpurea) infected with aster yellows phytoplasma (Acholeplasmatales). Typically transmitted by the aster leafhopper (Macrosteles quadrilineatus). Swarthmore, PA.
Black mangrove (Avicennia germinans) growing in lagoon. Isla Santa Cruz, Galápagos.
