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LEAF MORPHOLOGY. leaf sheath Dicotyledonous leaf Monocotyledonous leaf leaf apex leaf margin blade/lamina leaf vein petiole stipule ligule auricle abscission.

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Presentation on theme: "LEAF MORPHOLOGY. leaf sheath Dicotyledonous leaf Monocotyledonous leaf leaf apex leaf margin blade/lamina leaf vein petiole stipule ligule auricle abscission."— Presentation transcript:

1 LEAF MORPHOLOGY

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

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

4 PHYLLODES

5 auriculate perfoliateconnate SESSILE LEAVES (without petiole)

6 SESSILE LEAVES

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

8 SIMPLE LEAVES palmately lobed pinnately lobed

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

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

11 Odd pinnate Palmate (multifoliate)

12 alternate spiral opposite whorled LEAF ARRANGEMENT (PHYLLOTAXY)

13 opposite whorled

14 spiralalternate

15

16 interpetiolar stipule

17 spathulate LEAF SHAPES oblong lanceolate elliptic ovate obovate cordate acicular linear reniform

18 peltate orbiculate oblanceolate rhombic obcordate obdeltoid deltoid cuneate hastatesagittate LEAF SHAPES

19 entire undulate (sinuate) incised retrorsecrenate denticulate dentateserrulate serrate crenulate LEAF MARGINS

20 LEAF APICES acuminateacuteapiculatearistatecaudatecirrhose obcordat e mucronulat e mucronateemarginatecuspidatecleft obtuse retuseroundedspinose truncate A A B C B B C C A = CURLED, FLEXOUSB = STIFF, STRAIGHTC = NOTCHED C

21 LEAF BASES attenuate cuneate auriculatecordate sagittate obtusetruncate rounded unequal (oblique) hastate


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