83 
Vernacular Name. —Already dealt with at Part XXIII, p. 31. 
Aboriginal Name. —Already dealt with at Part XXIII, p. 31. 
Synonym. — Hartighsea Fraserana, A. Juss. in Mem. Mus. Par., xix, 
262, t. 15. 
Leaves. —If we turn to the original description of this tree (above, p. 79) 
we find these words : ££ mire inflata et perulam intus hispidam constituente,” which 
refers to what are now called “domatia,”—the origin of the secondary nerves often 
extraordinarily inflated, forming a little pocket, hispid inside. 
Bentliam refers to the same thing ££ Leaflets .... hearing occasionally 
tufts of hairs in the axils of the principal veins underneath.” (B.F1. i, 381.) 
Domatia are not always present, nor are they shown in Plate 85, Part XXIII, 
the upper sides of the leaves alone being shown, and domatia are, of course, on the 
under surface. 
A. G. Hamilton has investigated the domatia of this species :— 
“Group II.—Pouches formed by a widening of the principal and lateral veins at the axils, the 
space being filled in with tissue so as to form-a triangular pouch or pocket. To this group belong the 
domatia in Dysoxylon Fraseranum.” — (Proc. Linn. Soc. F.S.W., 1896, p. 763.) .... 
“ Group II. Dysoxylon Fraseranum , Benth.—The domatia are in the principal axils of the leaf or 
leaflet; and, so far as I have seen, this form never occurs in the secondaries. Sometimes they are found 
on only one side of the midrib, but generally on both. They vary in number from one to twelve. The 
leaves of a plant growing in a shady situation are very dark green and shining, on the under side lighter. 
From a sunny spot, they are much lighter in colour and smaller. The leaf wets readily on the upper side, 
but is greasy below. The pits do not appear much on the upper side of the leaf, but on the lower side they 
are very prominent, sometimes projecting above the leaf surface 3 mm., and then are corky and diseased- 
looking. The size is on an average 3x2 mm. The opening is wide and arched. Vessels occur in the 
walls. The interior is hairy, the points of the hairs projecting from the mouth. There are no stomata 
inside the domatium. 
“ The substance of the domatium roof consists of—(1) cuticle ; (2) epidermis ; (3) close palisade-tissue 
in two layers of very narrow cells, which are nearer the normal shape and arrangement than any I have 
seen in other plants; (4) close spongy parenchyma; (5) epidermis; and (6) cuticle. Here and there in 
the spongy parenchyma occur spherical interspaces of large size and destitute of contents. In the diseased- 
looking domatia of great thickness I found that the spongy parenchyma layer was of greater thickness, the 
hairs absent, and the roof and floor epidermal cells filled with a red substance, which formed a thick layer 
on both roof and floor. I fancy that this diseased state is caused by some insect (not a mite) taking up 
its abode in the domatia, as T repeatedly found remains in sections of some rather large insect. The 
mites were found in a few of the domatia, and in all the domatia were found dust, pollen grains, and 
both spores and mycelium of fungi. It is rather remarkable that these should be so plentiful, as from 
the mouth opening towards the apex of the leaf, and the leaf itself having a horizontal position, they 
could scarcely be washed in by rain, especially as they are on the under side of the leaf. I did not find 
such quantities of foreign matter in any other domatia, even of those with orifices as large. But Dr. 
Lundstrom notes the same kind of thing in many species examined by him.”— [Proc. Linn. Soc. F.S. II'., 
1896, p. 776.) 
Timber. —Already fully described in Part XXIII. 
Size— See Part XXIII. 
Habitat— See Part XXIII. 
