GREENHEART— GUAYACAN 177 



'' Bibiru," " Sipiri." A large tree 60 — 100 ft. high, yielding timber 

 42—70 ft. long and 1—2 ft. square. S.G. 1,079—1,210. W 58— 

 76-5. E 1,286 tons, e' -97. p' 1-65. / 8-97. c 8,820. c' 1-165. 

 fc 5*17. v^ 2-0. fs -435. Dark-greenish or chestnut, often nearly 

 black in the centre, fine, even, and straight-grained, the rings 

 indistinguishable, very heavy, hard, tough, strong, elastic, and 

 durable, the heartwood being teredo-proof, though the similar 

 sapwood is not so. This very valuable timber is liable to heart- 

 shake. It is largely used for piles, bridge-building and the keelsons, 

 beams, and planks in ships, being classed in the second-hne in 

 Lloyd's Register, for carriage-shafts, fishing-rods, etc. All the 

 dock-gates, piers, and jetties of the Liverpool Docks are of this 

 wood. It is imported in hewn logs, up to 60 ft. in length, fetching 

 3s. 6d. per cubic foot at Liverpool. These logs have tapered 

 or " snape " ends to facilitate their being drawn out of the 

 forest. These " ends," from 2 to 5 feet long, are cut off in con- 

 version, and are useful for many purposes, such as motor-waggon 

 spokes, belaying-pins, tobacco-pegs, etc., fetching 25s. to 50s. 

 per ton. 



Grignon {Bucida angusti folia DC. : Order Comhretdcem), Guiana. 

 Etiown in Surinam as '' Wane." S.G. 714. Very large, straight- 

 growing, pale red, rather less hard than Oak, even and straight in 

 grain. Used for masts and for furniture. 



Grignon fou {Qudlea cmrulea Aubl. : Order Vochysidcece). Guiana. 

 Ejiown also as '" Gouaie." S.G. 800. Large, reddish, soft, straight- 

 grained, very common, but of inferior quahty to the preceding. 

 Used for masts. 



Gru-gru {Astrocdryum sp. and Acrocomia sclerocdr'pa Mart. : 

 Order Palmdcece). Trinidad. Height 20 — 30 ft. ; diam. 1 ft. 

 The outer part of the stem of these palms is hard, heavy, 

 susceptible of a fine polish, and durable. Used for walking- 

 sticks. 



Guaralbu {Termindlia acuminata AUem. : Order Oomhretdcece, 

 or Peltogyne macrolohium AUem., or P. confertifioTa Benth. : Order 

 Leguminosce), Brazil. '' Pao roxo," A large tree, yielding 

 straight, dark-purple, fine-grained wood, with numerous pores 

 filled with a hard white substance. Used in ship- building. 



Guayacan, the native name of various species of Ouaiacum in 

 Central and South America [See Lignum-Vitse], is apphed in 

 Venezuela to Tecoma Gudyacan Seem. (Order Bignonidcece), S.G. 

 1-3, and in Argentina to Ocesalpinia melanocdrpa Griseb. (Order 

 Leguminosce), a rich, dark-brown colour, very heavy and dense in 

 grain, said to be the hardest wood in the country, resisting moisture 



