Plant Morphology, Different shapes of leaf

1. DIFFERENT SHAPES OF LEAF
DR. SUMIA ZAFAR
PROFESSOR & HEAD,
DEPARTMENT OF BOTANY,
DR. RAFIQ ZAKARIA COLLEGE
FOR WOMEN, AURANGABAD
PIN CODE -431001

2. DIFFERENT SHAPES OF LEAF
Lanceolate: The shapes of leaf
resemble the lance.
The leaf is elongated with broad
middle region.
It is attached to the shoot with
its broader region.
The apex and base of leaf is
somewhat tapered.

3. DIFFERENT SHAPES OF LEAF
Sagittate: It is an elongated triangular leaf,
arrow shaped. The basal region is broad with
two lobes facing downwards, forming a notch
for attachment of petiole. The leaf shapes
resemble a elongated triangle such type of
shape is termed as sagittate.

4. DIFFERENT SHAPES OF LEAF

5. DIFFERENT SHAPES OF LEAF
Elliptical: It is an oval shaped leaf with
the short pointed apex. The width of
leaf may be about one half of its
length. Such a shape is descried as
elliptical.

6. DIFFERENT SHAPES OF LEAF
Linear: A very narrow long leaf
called linear. The leaf has
approximately parallel margin.
The leaf which is longer than
broad is termed as linear.

7. DIFFERENT SHAPES OF LEAF
Spatulate or Subulate: The spoon shaped
leaf is termed as spatulate or subulate.
The lamina is narrow, firm and tapering
gradually from basal region to the apex .
Such type of shape of leaf is described
as spatulate or subulate.

8. DIFFERENT SHAPES OF LEAF

9. DIFFERENT SHAPES OF LEAF
Pinnatisect: The leaf lamina from both the
lateral side cut, but not up to the midrib.
Cutting the lobes is not of indefinite
shape. Such a shape of leaf termed as
pinnatisect. Such leaf is also described as
decompound leaf.

10. DIFFERENT SHAPES OF LEAF
Laciniate: The leaf possesses incised
margins. The teeth of margin
slightly bent towards base of the
leaf. Such type of leaf is termed as
laciniate. When the leaf margin is
very deeply lobed. The leaf shape is
termed as laciniate.

11. DIFFERENT SHAPES OF LEAF
Ovate or Oval: Leaf shapes resemble the
shape of hen’s egg with tapering apex . The
base of leaf is broad. Such type of shape is
described as ovate or oval.

12. DIFFERENT SHAPES OF LEAF

13. DIFFERENT SHAPES OF LEAF
Lyrate: It is a term used to describe a leaf
which is pinnately divided and have a broad
apical lobe and smaller lateral lobes. This
type of shape of leaf is termed as lyrate.

14. DIFFERENT SHAPES OF LEAF
Runcinate: The elongated leaf with toothed
margin. The teeth like structures directed towards
basal region of leaf.

15. DIFFERENT SHAPES OF LEAF
Aristate: The leaf is elongated with broad
lamina. The terminal region of leaf ends
into a small pointed tip which is like a
bristle. Such type of leaf shape described as
aristate.

16. DIFFERENT SHAPES OF LEAF
Cordate: The shape of leaf
resembles the heart of
greeting card; the leaf may be
petiolate or sessile. Such
shape is described as cordate.

17. DIFFERENT SHAPES OF LEAF
Obovate: The leaf is egg shaped but the
narrow end of leaf attached to the shoot. It is
a term used for shape of leaf which is ovate
without any divisions.

18. DIFFERENT SHAPES OF LEAF

19. DIFFERENT SHAPES OF LEAF
Cuneate: It is a triangular
shaped leaf having distinctly
narrow towards the basal
region.

20. DIFFERENT SHAPES OF LEAF
Oblanceolate: Leaf is
elongated with broad middle
region. It is attached with
stem with pointed region of
leaf.

21. DIFFERENT SHAPES OF LEAF
Caudate: The leaf with
broad lamina with a very
long tail like structure at
apex.

22. DIFFERENT SHAPES OF LEAF

23. DIFFERENT SHAPES OF LEAF
Deltoid: The shape of leaf
resembles a triangle. Triangular
leaf may have broad base
covering two angles of leaf and
remaining angle is the apex of
leaf. The shape is termed as
deltoid.

24. DIFFERENT SHAPES OF LEAF
Sagittate: It is an elongated triangular
leaf, arrow shaped. The basal region
is broad with two lobes facing
downwards, forming a notch for
attachment of petiole. The leaf
shapes resemble a elongated triangle
such type of shape termed as
sagittate.

25. DIFFERENT SHAPES OF LEAF
Digitate: The lamina of possesses 3-4
or more finger like structures. A
variety of ornamental plants
possesses digitate type of leaves.
The lamina of leaf is highly divided
into finger like projections. All the
finger like projections of leaf
originated from a single point. Such
type of leaf is termed as digitate.

26. DIFFERENT SHAPES OF LEAF
Scale like leaf: The leaf
having small scale like
structure which is closely
associated with stem,
which occurs in
Pteridophytes and
certain xerophytic
plants.

27. DIFFERENT SHAPES OF LEAF
Retuse: Leaf margin
having large 2-3 lobes and
apex in obtuse. Such
shape is termed as retuse.

28. DIFFERENT SHAPES OF LEAF
Hastate: The upper leaf of leaf
lamina possesses oval shape with a
pointed apex. The basal part of
lamina has two lobes which are
extended outwardly with a pointed
apex. Such type of shape is
described as hastate.

29. DIFFERENT SHAPES OF LEAF
Acicular: The pointed needle shaped
leaves which are slender, green in colour
mostly occur in xerophytic plants. In the
taxonomic language such leaf shape is
described as acicular.

30. DIFFERENT SHAPES OF LEAF
Trifoliate leaf: It is a compound leaf. A
leaf is having three separate leaflets.

31.  Peltate: The leaf lamina is
almost spherical, round. The
margin is not divided which is
entire, the petiole is attached at
central region at the ventral
surface. Such a disc shaped leaf
is termed as peltate. The round
plate or shield shaped leaf is
termed as peltate. The
attachment of leaf is present at
the center of the leaf.

32. DIFFERENT SHAPES OF LEAF

33. DIFFERENT SHAPES OF LEAF
Fenestrate: The leaf
lamina shows holes of
variable size. It is a
natural phenomenon.
The leaf resembles the
window. The shape of
such a leaf is termed as
fenestrate.

34. DIFFERENT SHAPES OF LEAF

35. DIFFERENT SHAPES OF LEAF
Truncate: The square
shaped leaf with a
rectangular apex is termed
as truncate.

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