in Extra- Tropical Countries. 9 



into England becomes every year less, and while the import of sumach 

 and gambir does not increase, the annual demand for tanning sub- 

 stance has within the last twenty years been doubled. A. pycnantha 

 is also important for its copious yield of gum, which is in some 

 localities advantageously collected for home-consumption and also for 

 export. The wood, though not of large dimensions, is well adapted 

 for staves, handles of various implements and articles of turnery, 

 especially bobbins (Dickinson). By improved methods, the fragrant 

 oil of the flowers could doubtless be fixed, though its absolute isolation 

 might be difficult and uuremunerative. The tree as a rule seeds well. 



Acacia retinodes, Schlechtendal. 



South-Eastern Australia. Ascertained so early as 1846 by Dr. 

 Hermann Behr to yield a good tanners' bark and much gum. This 

 Acacia is ever-flowering, and in this respect almost exceptional. It 

 likes river-banks, but never grows beyond the height of a small tree. 

 A. neriifolia (A. Cunningham) of New South Wales is a closely 

 allied species. 



Acacia Sentis, F. v. Mueller. 



Interior of Australia. This shrub or small tree is suitable for 

 hedges. The seeds of this species and also of A. Kempeana, A. 

 cibaria and some others are eaten by the natives. Horses, cattle, 

 sheep and camels browse in Central Australia with avidity on the 

 foliage (Rev. H. Kempe). This species will endure most protracted 

 drought and a shade-temperature of 118 F. 



Acacia Seyal, Delile. 



In the Libyan and Nubian Deserts. This thorny tree exudes a 

 brownish kind of gum arabic. It is adapted for the most arid desert- 

 country. In any oasis it forms a large and shady tree. Native 

 name " Soffar." Can be utilized for thorny hedges as well as A. 

 tortilis (Forskael), the latter also yielding gum arabic. 



Acacia stenocarpa, Hochstetter. 



Abyssinia and Nubia. A large tree, which yields the brownish 

 " Suak-" or " Talha "-Gum, a kind of gum arabic. (Hanbury and 

 Flueckiger.) 



Acacia stenophylla, Cunningham. 



On banks of water-courses in the interior of Australia, as far south 

 as the Murray-River. A tree with exquisite, hard, dark wood, 

 serving the same purposes as Myall-wood, and also known as Iron- 

 wood. Attains a height of 60 feet and a stem-diameter of 2 feet. 



Acacia supporosa, F. v. Mueller. 



South-Eastern Australia. Straight stems over 50 feet long are 

 formed by this tree; the wood is tough and elastic, fit for carriage- 

 shafts, gunstocks, various select tools. (L. Morton.) 



B 2 



