360 Barber . — Cupressinoxylon vec tense. 
not unlike our own in several respects — founded on the 
examination of over a hundred sections, noted the same 
characters in the radial and tangential aspects of the wood- 
parenchyma k 
There is a marked difference in the width of the cells in 
radial and tangential directions. The radial widths in the 
different specimens were 19 /q 11 //, 20 ju, and 19 jjl, respectively, 
whereas the tangential were 28 ju, 19 ju, 26 jut, and 2 6 [x. The 
length of the cells varied from *09 mm. to *33 mm. in 
branch (1), with an average of *19 mm. in twenty-five measure- 
ments ; in root (1) from -04 mm. to *21 mm., with an average 
of *12 mm. in twenty measurements; in root (2) from -n mm. 
to -27 mm., with an average of *19 mm. in twenty measure- 
ments. 
The terminal cells of each row of parenchyma are, as 
already stated, pointed in tangential sections, and are here 
indistinguishable from the neighbouring tracheides. These 
end-cells are free of contents and appear to have normal 
bordered pits. The latter are however difficult to make 
out. It is quite possible that the appearances are deceptive, 
because Strasburger states that in recent Coniferous woods 
the pits between tracheides and parenchyma are always one- 
sided bordered pits 1 2 . See, however, Fig. 14. 
In one case a strand of resin-parenchyma was traced 
through 2*5 mm. when the edge of the section was reached, 
nine transverse walls having been passed. The average 
length of ten closed series of parenchymatous cells from end 
to end was 1-55 mm. 
It was not possible to make out any pittings on the 
transverse or tangential walls of the parenchyma. This is 
one of those subsidiary characters which should always be 
noted, for it is stated by Beust that the wood of Tax odium 
1 Andrae, Calloxylon Hartigii , Bot. Zeit. 1848, p. 633. See also Kobbe, 1. c., 
Taf. ii, figs. 1 and 3 of Cupressinoxylon uniradiatum. 
2 Strasburger, 1. c. See also Kobbe, 1. c., where double-bordered pits are figured 
in the parenchyma of Cupressinoxylon uniradiatum (Taf. ii, fig. 1) and of 
Cupressinoxylon pachy derma (Taf. ii, fig. 10). 
