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Pharmacognostic studies on ‘Dravanti’ part-IJatropha curcas Linn.

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Proceedings / Indian Academy of Sciences

Abstract

‘Dravanti’, an important Ayurvedic drug, has variously been ascribed to different botanical taxa,Jatropha curcas Linn. being one such species. A detailed pharmacognosy of the vegetative parts of the above species has been dealt with in the present paper. The study has revealed that such characters as the presence of 9 leaf traces in the basal parts of the petiole, mixed anisocytic and paracytic stomata with stomatal index 7·3 and 12 for the upper and the lower leaf surfaces respectively, funnel-shaped multiseriate phloem rays demarcating the phloem into wedge-shaped masses in both the root and the stem, diffused porous wood with diffused apotracheal parenchyma and 1–3 seriate xylem rays along with certain physicochemical constants and fluorescence tests can provide useful parameters for differentiating this species from other implicated taxa.

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Abbreviations

cam:

cambium

col:

collenchyma

cor:

cortexi

cr:

crystal

crc:

ceratenchyma

cu:

cuticle

end:

endodermis

ep:

epidermis

epb:

epiblema

gt:

ground tissue

hr:

root-hair

l:

leaf

lep:

lower epidermis

lepc:

lower epidermal cell

Iff:

libriform fibre

pal:

palisade cells

par:

parenchyma

pct:

primary cortex

per:

pericycle

ph:

phloem

phd:

phelloderm

phf:

phloem fibre

phg:

phellogen

phl:

phellem

php:

phloem parenchyma

phr:

phloem ray

phrl:

narrow phloem ray

pi:

pith

r:

root

s:

stem

sc:

secretory canal (laticifer)

spc:

spongy parenchyma

spt:

sieve plate

st:

sieve tube

sim:

stoma

sts:

starch-sheath

tr:

tracheid

trf:

tracheid fibre

uep:

upper epidermis

uepc:

upper epidermal cell

vb:

vascular bundle

vi:

vein-islet

vt:

vein-termination

xy:

xylem

xyp:

xylem parenchyma

xyr:

xylem ray

xyrl:

narrow xylem ray

xyr2:

broad xylem ray

xyv:

xylem vessel.

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Authors and Affiliations

  1. National Botanical Research Institute, 226 001, Lucknow, India

    R C Gupta

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  1. R C Gupta
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NBRI Research Publication No. 241 (New Series)

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Gupta, R.C. Pharmacognostic studies on ‘Dravanti’ part-IJatropha curcas Linn.. Proc. Indian Acad. Sci. 94, 65–82 (1985). https://doi.org/10.1007/BF03053108

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  • DOI: https://doi.org/10.1007/BF03053108

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