MORPHO ANATOMICAL STUDIES OF LEAVES OF Urena ... - IJPI

INTERNATIONAL JOURNAL OF
RESEARCH ARTICLE
PHARMACEUTICAL INNOVATIONS ISSN 2249-1031
Sc:- Sclerenchyma, LB:-Lateral Bundle,
Ph:-Pholem, Tr:-Trichome, X:-Xylem,
Pa:-Parenchyma, MB:-Median Bundle
Venation pattern
The vein-lets are prominent, forming,
distinct, polygonal. The vein-terminations
are distinct, short thick and unbranched;
the islets are random in orientation (Fig
6A). Along the vein calcium oxalate
druses are located in regular uniseriate
row. The crystals are spherical, spiny
bodies of 30 μm in diameter (Fig.6B).
type and are long, narrow, tapering
towards the tip. The cell walls are fairly
thick and smooth. The trichomes have no
cell inclusions with 1.05 mm long and 30
µm in thickness.
Fig 6. Venation pattern of Urena lobata
Linn leaf
A:- Vein islets and vein termination,
B:- Crystals along the vein under
polarized light microscope.
Cr:- Crystals, VI:- Vein Islets. VT:-
Vein Terminology
Powder Analysis
The leaf powder of Urena lobata Linn was
greenish in colour, with punget odour and
characteristic taste. Powder analysis
observation cited that Non glandular
trichomes and A cluster of trichomes (Fig7
A&B). Epidermal trichomes are presented
as unicellular and unbranched in the
powder .The trichomes are non glandular
Volume 3, Issue 1, Jan. − Feb. 2013
7. Powder microscopy of trichomes
A. Non glandular Trichomes, B. Cluster
of Trichomes
Fragments of fibers which are thick,
narrow and wide (Fig 8 A, B&C).
Parenchyma cells are wide and narrow,
elongated, rectangular and thick walled
seen in isolated condition. They have thick
cellulose walls and wide circular simple
pits. The cells are 250-350 µm long and
30-70 µm wide. Fibers (xylem) widely
spread in the powder. They are long and
thin in the middle and gradually tapering
the ends. The walls are thick and lignified
and the pits on the walls are not evident.
Some of the fibers are narrow and others
are wide
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