Pterocarpus
santalinus
L. Physical Properties
Weight : 76 lb.per c.ft. (air dry)
Gross Structure :
A diffuse porous wood, Growth rings distinct, 4-5 per cm.
Vessels/pores moderately large, just visible to eye, few to moderately
few (3-6 per mm2), more or less evenly distributed solitary or in short
radial multiples of 2-3, round in outline, frequently filled with
reddish brown gummy deposits, vessel lines district on the longitudinal
surfaces. Parenchyma/ soft tissues distinct only under hand lens as
numerous narrow bands connecting the vessels, some times aciform or in
long lateral extensions and also as a fine interrupted lines delimiting
growth rings. Rays fine to very fine, closely spaced, uniformly
distributed, ripple marks present on tangential surface.
Minutes Structure :
Vessels up to 207µm (mean 14.0+/-3µm) in diameter,
perforation plate simple, intervascular pitting alternate, oval and
vestured, 7-8µm in diameter, pits leading to rays and axial parenchyma
are more or less similar, vessel members 133-249µm. (Mean 196+/- 1µm) in
length, truncate or abruptly tailed, gummy deposits present. Parenchyma
Para tracheal, narrowly confluent or aciform with short or long lateral
extensions, some times diffuse as few scattered cells, strands composed
of 2-6 cells, gummy in filtration present fibers circular to angular and
irregularly aligned in cross section, average maximum diameter and wall
thickness 18µm and 5µm respectively, pits simple, confined to the radial
walls. Rays 1-2 seriate (mostly uniseriate), 13 per mm (t), homogeneous,
15µm in width and up to 9cells of 205µm in height, composed of
procumbent cells.
Reference
-
S.P.Agarwal and P.K. Pande, Anatomy of
commercial timbers of south zone, part 2, Indian council of forestry
research and education, new forest. Dehra dun-248006, ICFRE-22,
1992, Page no: 6.
-
K.Ramesh rao, and S.K. Purkayastha,
vol3, Indian woods, Published by the manager of publications, Delhi
and printed at the F.R.I. press, Dehradun, India, august 1972, page
no: 129-130.
-
H.Trotter, The common commercial
timbers of India and their uses, Printed by the manager government
of India press, Nasik-422006 and published by the controller of
publications. Delhi-110054, 1982, Page no: 165.
-
Pearson and Brown, Commercial Timbers
of India, vol 1, Government of India, central publication branch,
Calcutta, 1932, Page no: 398.
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