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Leaves

Leaf or leaflet apex

The tip of a two-dimensional structure which is usually bounded by the upper 5-10% of the margins; or the top of a three-dimensional structure.

acuminate

Margins straight to convex forming a terminal angle of less than 45 .acuminate

acute

Margins straight to convex forming a terminal angle 45 -90 .acute

apiculate

More than 3:1 l/w, usually slightly curled and flexuous.apiculate

aristate

More than 3:1 l/w, usually prolonged, straight and stiff.aristate

caudate

Acuminate with concave margins.caudate

cirrhous

More than 10:1 l/w, coiled and flexuous.cirrhous

cleft

Lobe rounded; sinus depth 1/4-1/2 distance to midpoint of blade; margins convex and/or straight.cleft

cuspidate

Acute but coriaceous and stiff.cuspidate

emarginate

Lobe rounded; sinus depth 1/16-1/8 distance to midpoint of blade; margins straight or convex.emarginate

mucronate

Less than 3:1 l/w, straight and stiff.mucronate

mucronulate

1:1 l/w or broader than long; straight.mucronulate

obcordate

Lobe rounded; sinus depth 1/8-1/4 distance to midpoint of blade; margins convex and/or straight.obcordate

obtuse

Margins straight to convex, forming a terminal angle more than 90 .obtuse

retuse

Lobe rounded; sinus depth to 1/16 distance to midpoint of blade; margins convex.retuse

rounded

Margins and apex forming a smooth arc.rounded

spinose or pungent

Acuminate but coriaceous and stiff.spinose or pungent

truncate

Cut straight across; ending abruptly almost at right angles to midrib or midvein.truncate

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