48 
ADDITIONS 
of its publications affords space for such purposes. Some 
difficulty was again experienced on this occasion, not only in 
the selection of the plants to be recommended, but also in the 
limitation of the notes on any particular species. But not 
every plant placed here is actually to be regarded as of proved 
extensive industrial value ; or as of established remunerative 
cultural yield j on the contrary, in the majority of instances 
they are only brought forward as recommendable for unbiassed 
new and local tests by enlightened culturists. In reference 
to the narrow boundaries, within which this and the two 
former treatises have been held, it may be observed that, until 
more voluminous writings of these kinds can appear through 
special public provision, the very brief data, now additionally 
brought together, may helpingly tend to the extension of 
cultural experiments, to the augmentation of our foreign 
intercourse for scientific industrial and mercantile purposes, 
and to the increase of our rural wealth. 
Melbourne, May 1874. 
Aberia Caffira, Hooker. 
The Kai- Apple of Natal and Caffraria. This tall shrub serves 
for hedges. The rather large fruits are edible, and can be 
converted into preserves. Allied South African species are 
A. Zeyheri and A. iristis (Sonder). 
Acacia Arabica, Willdenow. 
Throughout Africa, also in South Asia. This small tree can be 
utilized for thorny hedges, as also A.Seyal (Delile) and A. tortilis 
(Forskael). They all furnish the best Gum Arabic for medicinal 
and technical purposes. The Lac-Insert lives also on the foliage, 
and thus in Sind the Lac is mainly yielded by this tree. 
Acacia Concinna, Candolle. 
India. Praised by Dr. Cleghorn as a valuable hedge shrub. The 
pod contains Saponin. So is likewise A. latronum (Willd.), a 
hedge bush. 
