216 SYSTEMATIC BOTANY. 



Pole Bean (Phaseolvs vulgaris), Field Bean (P. nana), Lima 

 Bean (P. lunatus), all from Asia. The Peanut (Arachis 

 hypogcBa) is a native of South America ; its peduncles, after 

 fertilization of the yellow flowers, have the curious habit 

 (as if for protection) of bending down and thrusting the 

 young pods into the ground, where they ripen. Among 

 the many forage plants may be mentioned the Red Clover 

 (JDrifolium pratense), White Clover (T. repens), Lupine 

 (Lnpinus alhus). Lucerne (Medicago sativa), Sanfoin (^Ono- 

 brychis sativa), Vetch (Ficia sativa), all from countries adja- 

 cent to the Mediterranean region. The timber trees include 

 the Locust-tree of the United States {Robinia Pseudacacia) ; 

 the Rosewood of Brazil (^Dalbergia nigra) and of India 

 (D. latifolia) ; the Mora-tree of Guiana {Dimorphandra 

 Mora) ; the Honey Locust of the United States (^Oleditschia 

 triacanthos) ; Kentucky Coffee-tree {Gymnochdus Carta- 

 densis) ; Acacia melanoxylon of Australia (considered 

 equal to the best walnut) ; Lysiloma Sabicu of Cuba, etc. 

 Dyes yielded by members of this family are Indigo, from 

 Indigofera tinetoria of India ; Red Sandalwood, or chips, 

 from Pterocarpus santalinus ; Brazil-wood, from CcBsalpina 

 echinata of Brazil ; and Logwood, from Hcematoxyhn Carrtr 

 pechianum of Central America. The gums deserving men- 

 tion are Gum-Tragapanth from Astragalus tragacantJia, 

 etc., of Asia; Gum- Kino from species of Pterocarpus of 

 India and Africa ; Balsam of Peru and Balsam of Tola 

 from species of Myroxylon of Central and South America ; 

 Gum-Copal from species of Trachylobium and Hymenma of 

 Africa and Madagascar ; Copaiva Balsam from Brazilian 

 species of Copaifera; and 'Gum-Arabic, or Acacia, from 

 Asiatic and Africa species of Acacia. Medicinal products 

 are the roots of Glycyrrhiza glabra (Liquorice) and the 



