Leaves do not show excessive guttation . . . . . Necrotic spots, when present, are sharply demlimited and sunken. Old leaflet margins roll upward stiffly. Veinal necrosis is often present. Petioles and petiolules often bend abruptly and stiffly downward . . . . .
Necrosis appears as bronze-colored areas of cellular necrosis.
These areas are neither sunken nor sharply delimited. Old leaflet margins are not usually rolled upward. Veinal necrosis is not present. Petioles and petiolules do not show abrupt downward bending . . . . . Leaves show no excessive wilting except in cases of petiole necrosis.