72 The, Timbers of British Guiana. 



Transverse Section: 



Pores. Occasional groups of as many as 22 pores; groups of 

 nine are frequent. 



Rings. Ill-defined; boundary doubtful; contour nearly 

 regular. 



Soft Tissue. Contour of the concentric lines not lumpy, as in 

 No. 42. 



Pith.( ?) 



Radial Section is marked with vertical red lines (the Soft 

 Tissue), which show up better when moistened. The Rings are 

 not indicated. 



Type Specimens. Authenticated by Bell, No. 70/2726. 



71. NOT IDENTIFIED. 



Alternative Names, " PHOKADIE, ITUKADIE " (2). 



Salient Features. A rather heavy, brown wood. " Resembles 

 Greenheart " (2). It has a greenish tinge at times. Grain coarse 

 and open. 



Physical Characters. Weight (so far recorded), 57 J Ibs. per 

 cubic ft. Hardness, Grade 3, rather hard; compare Blackthorn. 

 Smell or taste 0. Heartwood not defined from Sapwood; surface 

 clean to bright; darkens but little on exposure to the air. Colour 

 of Sapwood brown; width (?). 



Bark. T \-J in. thick, scaling in large, thick, irregular flakes ; 

 epidermis hard and brittle ; finely laminated within, and easily 

 separable into tow-like fibres. Surface of log under bark, finely 

 striated. 



Uses, Qualities, etc. " Is readily procurable in logs up to 

 30 ft., squaring up to 14 ins. should make good sills " (2). 

 Rather hard to saw. Fissile, takes nails badly ; planes and turns 

 hard and badly ; polishes indifferently. Of doubtful value for 

 export. Sometimes confused with Greenheart, No. 29, on account 

 of the similarity in colour. 



Authorities. -2. Bell, p. 8, 12. Hawtayne, p. 385. 



ANATOMICAL CHARACTERS. 

 Similar to those of Trysil, No. 55, and No. 39, Frontispiece. 



Transverse Section: 



Pores. Readily visible with the naked eye, as large perfora- 

 tions; not diminishing towards the close of the season's growth, 

 but increasing very considerably as the tree ages; unevenly dis- 

 tributed ; in wide rings there is a distinct tendency to form oblique , 

 straggling lines, which are often visible with the naked eye. Single 

 or in oval sub-divided groups of 2-4 or more Pores. 



Rays. Readily visible with the lens or to good sight with the 

 naked eye ; fine ; light-coloured ; uniform ; regular, much less than 

 the width of a Pore apart; avoiding the Pores. 



Rings. Well-defined ; boundary, a fine line of Soft Tissue just 





