Naturalisation in Extra- Tropical Countries. 63 



other decorative purposes, as cut branches do not wither for a con- 

 siderable time. It attains a height of 15 feet [Professor Bolander], 

 and could readily be naturalized along sandy sea-shores. 



Backhousia citriodora, F. v. Mueller. 



Southern Queensland. Though only a small tree, it is well worth 

 cultivating for the fragrance of its lemon- scented foliage, from 

 which also a culinary and cosmetic oil can be cheaply distilled. 

 Mr. T. Christy compares the oil to that from Lippia citriodora, and 

 recommends Mons. Broquet's apparatus for this and similar distill- 

 ations. 



Bactris G-asipses, Huruboldt. (GuUielma speciosa, Martius.) 



The "Peach-Palm" of the Amazon-River, ascending to the warm 

 temperate regions of the Andes. Stems clustered, attaining a height 

 of 40 feet. The fruit grows in large bunches ; Dr. Spruce describes 

 it as possessing a thick, firm and mealy pericarp, and when cooked 

 to have a flavor between that of the potato and chestnut, but superior 

 to either. 



Bacularia Arfakiana, Beccari. 



In Araucaria-forests of New Gruinea up to 6,000 feet. A reed- 

 like palm, evidently desirable for decorative purposes. 



Bacularia monostachya, F. v. Mueller. (Areca monostachya, Martius.) 

 Eastern Australia, extending to extra-tropical latitudes. One of 

 the best among small Palms for table-decoration. The stems sought 

 for walking-sticks. 



Balogrhia lucida, Endlicher. (Codiceum lucidum, J. Mueller.) 



East- Australia. A middle-sized tree. The sap from the wounded 

 trunk forms, without any admixture, a beautiful red indelible pig- 

 ment. The wood is adapted for turnery. 



Balsamodendron Xtfukul, Hooker. 



Scinde and Beluchistan. Yields the Bdellium-resin. 



Balsamodendron Myrrha, Nees. (Commiphora Myrrha, Engler.) 



Deserts of Arabia. This tree yields the commercial " Myrrh," 

 but perhaps some other species may produce the same substance. 



Balsamodendron Opobalsamum. Kunth. (B. Gileadense, Kunth. 

 Commiphora Opobalsamum, Engler.) 



Deserts of Arabia, Abyssinia and Nubia. A small tree. This 

 species furnishes Mekka- or Gilead-Balsam. B. Capense (Sender) 

 is a closely allied congener from Extra-tropical South- Africa. Some 

 other Balsam-shrubs deserve introduction into warm dry regions. 



