5f> The Timbers of British Guiana. 



Pores. Visible with the naked eye, much smaller and more 

 numerous than in No. 14. Mostly single, a few Radial groups of 

 2-5 Pores. Empty. 



Kays. Regular, much less than the width of a Pore apart; so 

 closely packed that the space between them is scarcely equal to 

 their width; avoiding the Pores, but not undulating so much as in 

 No. 14. 



Rings. Well denned; boundary a fine line of Soft Tissue 

 scarcely visible to the naked eye; average number per inch of 

 radius, in my specimens, 11'25. 



Soft Tissue. Of definite arrangement; type of Carapa, No. 14, 

 but no lateral extensions (wings) to the Pores. 



Pith. About in. in diameter, soft, red. 



Radial Section. The' Pores are empty, reddish scratches. The 

 Rays are very inconspicuous. In Tangential Section they are 

 minute, 1 cell wide by 5-20 cells high. 



Type Specimens. Authenticated by Bell, No. 54/2710. 



55. PENTACLETHERA FILAMENTOSA, BTH. 



Nat. Ord. t LEGUMINOS.E. Synonym, P. BREVIFOLIA. BTH. 



Alternative Names. 11 Koorooballi, Trysil " (2). " Trisle " 

 (24a). " Bois mulatre, Palo mulato " (4a). " Parana-cache " (21). 



Salient Features. A solid, dark red, coarse-grained, rather 

 heavy wood. 



Physical Characters. Weight (so far recorded), 49|-50J Ibs. per 

 cubic ft. Hardness, Grade 5, rather hard; compare Ash, Elm. 

 " Extremely hard " (21). Smell 0. Taste astringent. 



Colour of Heartwood, as above. "Variegated red-brown" (2). 

 " Purplish -brown variegated with numerous small dark spots " (21). 

 Darkens a little on exposure to the air; surface clean to bright; 

 well defined from the Sapwood which is reddish-white to reddish- 

 oatmeal colour. 



Bark. (?) About 1 in. thick. Surface of log under bark 

 finely ribbed. 



Uses, Qualities, etc. "Floor-beams and framing, and the 

 smaller sizes for spars and firewood. Is readily procurable in logs 

 up to 40 ft. in length, squaring 10 ins. " (2). Easy to saw; planes 

 moderately hard and badly; polishes indifferently. A handsome 

 wood which may be useful for furniture. Sometimes confused with 

 Koorooboorelli, No. 73, and Courbaril, on account of the similarity 

 in the names. 



Authorities. 2. Bell, p. 9. 4a. Boulger, p. 426. 12. 

 Hawtayne, p. 384. 20. McTurk, p. 2. 21. Miers. 24. Rodway. 

 ANATOMICAL CHARACTERS. 



Similar to those of Hooroowassa, No. 37 ; Hyariballi, No. 39 ; 

 Purpleheart, No. 73; and Hoobooballi, No. 35, and No. 39 Frontis- 

 piece. 



Trantverse Section. Much darker than the other sections. 



