Species

Wood

Vessels

Parenchyma

Xylem

Fibres

Ougenioxylon tertiarum

Parakash & Tripathi (1975) [22]

Diffuse porous

Small to large t.d. 40 - 260 µm 3 - 7 vessels/sq. mm mostly solitary as well as in redial multiple of 2 - 4 inter vessel pit-pairs small, vestured, border oval to elliptical with lenticular orifices.

Paratracheal and apotracheal; Vascicentric, aliform to confluent; apotracheal parenchyma diffuse as scattered cells and terminal; parenchyma strands storied and crytalliferous.

Rays 1 - 4 (mostly 2 - 3) seriate procumbent 3 - 20 ccells high, 8 - 10 rays/mm homogeneous, and homocellular.

Septate

Ougenioxylon chinjiensis sp. nov.

Diffuse porous

Small to medium, 40 - 130

µm in diameter, 3 - 7 vessels/ sq. mm, mostly solitary as well as in radial multiples of 2, inter vessel pits are alternate circular, oval to elliptical.

Paratracheal and apotracheal; Mostly vascicentric, aliform to confluent; apotracheal parenchyma form thick lines of terminal parenchyma; parenchyma strands storied.

Mostly biseriate, occasionally 3 seriate 10 - 20 cells high, 10 - 19 rays/mm homogenous, homocellular procumbent.

Septate