IN EXTRA-TROPICAL COUNTRIES. 41 



Balsamodendron Ehrenbergi, Berg. 



Deserts of Arabia. This tree yields the Myrrha resin, but 

 perhaps some other species may produce the same substance. 

 Professor Oliver unites this with the following species. 



Balsamodendron Mukul, Hooker. 



Scinde and Beluchistan. Yields the Bdellium resin. 



Balsamodendron Opobalsanmm, Kunth. (B. Gileadense, Kunth.) 

 Arabia and Nubia. This species furnishes Mekka or Gilead 

 Balsam. B. Capense (Sonder) is a closely allied species from 

 extra-tropical South Africa. Many other Balsam shrubs de- 

 serve introduction. 



Bambusa arundinacea, "Roxburgh.* 



The Thorny Bamboo of India. It likes rich, moist soil, 

 aud delights on river banks. It is of less height than Bam- 

 busa vulgaris ; it also sends up from the root numerous stems, 

 but with bending branches, thorny at the joints. According 

 to Kurz it will thrive in a climate too dry for B. Tulda and B. 

 vulgaris. The seeds of this and some other Bamboos are 

 useful as food for fowls. 



Bambusa aspera, Poiret. 



Indian Archipelagus. Attains a height of 120 feet. Stems 

 very strong and thick. This species ascends to elevations of 

 4,000 feet. 



Bambusa Blumeana, Schultes. 



Insular India. This Bamboo, with its spiny buds and de- 

 pendent branchlets, is, according to Kurz, one of the best for 

 cattle-proof live hedges among the Asiatic species. In con- 

 tinental India B. nana and B. arundinacea are much used for 

 the same purpose. Periodic trimming is required. 



Bambusa flexuosa, Munro. 



China. Only 12 feet high, but very hardy, having resisted 

 in South France a temperature of 13 Gels. = + 8 F. 

 (Geoffroy de St. Hilaire.) 



Bambusa spinosa, Roxburgh.* 



Bengal. A Bamboo attaining 100 feet in height. The cen- 

 tral cavity of the canes is of less width than in most other 

 species ; thus the strength for many technic purposes is in- 

 creased. 



