Smallest veins do not remain green. Necrotic areas, if present, are not associated with any particular part of the lamina . . . . . Young leaves do not show interveinal chlorosis, but young leaflets may show chlorosis toward their central basal portion . . . . . Dorsal sides of young leaflets show marked purpling. The ventral surfaces aof young leaflets are very dark green.
Leaflets are small and curled downward.
Oldest leaves may show slight interveinal chlorosis and necrosis . . . . . Dorsal sides of young leaflets are not purple. Ventral surfaces of young leaflets show central basal chlorosis. Growth may be distorted. Interveinal necrosis often appears at bases of young leaflets.