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LEAF MORPHOLOGY

LEAF MORPHOLOGY. leaf apex. leaf margin. lamina. blade/lamina. leaf vein. ligule. midrib. auricle. petiole. abscission zone. leaf sheath. stipule. Monocotyledonous leaf. Dicotyledonous leaf. PETIOLE. cylindrical. grooved. phyllode. winged petiole. pulvinus. swollen leaf base.

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LEAF MORPHOLOGY

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  1. LEAF MORPHOLOGY

  2. leaf apex leaf margin lamina blade/lamina leaf vein ligule midrib auricle petiole abscission zone leaf sheath stipule Monocotyledonous leaf Dicotyledonous leaf

  3. PETIOLE cylindrical grooved phyllode winged petiole pulvinus swollen leaf base pseudobulb phyllode

  4. PHYLLODES

  5. SESSILE LEAVES (without petiole) connate perfoliate auriculate

  6. SESSILE LEAVES

  7. LEAF VENATION pinnately netted DICOT reticulate/ netted palmately netted parallel MONOCOT penni parallel

  8. SIMPLE LEAVES palmately lobed pinnately lobed

  9. PALMATE LEAVES leaflet trifoliate petiolule petiole multifoliate bifoliate simple leaf (palmately - lobed) e.g. ubi gajah

  10. PINNATE LEAVES leaflet petiolule rachis petiole odd pinnate/imparipinnate even pinnate/paripinnate rachilla rachis tripinnate bipinnate

  11. Odd pinnate Palmate (multifoliate)

  12. opposite alternate spiral whorled LEAF ARRANGEMENT (PHYLLOTAXY)

  13. opposite whorled

  14. alternate spiral

  15. interpetiolar stipule

  16. LEAFSHAPES obovate ovate elliptic lanceolate oblong cordate spathulate reniform acicular linear

  17. LEAF SHAPES rhombic oblanceolate obcordate peltate orbiculate deltoid obdeltoid cuneate sagittate hastate

  18. LEAF MARGINS entire undulate (sinuate) incised retrorse crenate crenulate serrate denticulate serrulate dentate

  19. LEAF APICES A B A acuminate acute apiculate aristate caudate cirrhose C C B B C cleft cuspidate emarginate mucronate obcordate mucronulate C retuse rounded spinose truncate obtuse A = CURLED, FLEXOUS B = STIFF, STRAIGHT C = NOTCHED

  20. LEAF BASES auriculate cordate sagittate cuneate attenuate unequal (oblique) rounded hastate truncate obtuse

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