YELLOW CIROUABALLI 



the width of the large pores apart yet scarcely avoiding them, 

 gently undulating, long : scarcely denser than the ground-tissue : 

 many, 4-6 per mm. 



Rings. Rarely if ever traceable. 



Soft-tissue. Encircling the pores and in very small lines and 

 patches close to them. 



Pith. ? 



Radial Section. Much lighter than the Transverse section. 

 Pores prominent in some sections as hoary lines or chambered 

 grooves containing drops of dark-coloured resin. Rays very 

 inconspicuous, small, dull flakes. Rins;s rarely traceable. Soft- 

 tissue just visible as hoary borders to the pores. 



Tangential Section. As the Radial, but the rays need lens, 

 being minute lines about 0*5 mm. high. 



Type specimens authenticated by the Forest Officer to the 

 Government of British Guiana, also from commercial sources. 



No. 155. YELLOW CIROUABALLI. Nectandra 



pisi. Miq. 

 PLATE XI. As FIG. 99. 



Natural Order. Laurineae. 



Alternative Names. Black Cedar (12). Yellow Siruaballi. 



Sources of Supply. ritish Guiana and neighbouring regions. 



Physical Characters, etc. Recorded dry-weight 52 Ibs. per 

 cu. ft. Hardness Grade 3, compare Blackthorn. Smell when 

 worked like certain kinds of Cedar or Callitris. Taste like spice 

 with a suggestion of Havana (cigar-box) Cedar. Burns indiffer- 

 ently with much crackling : embers glow in still air but no resin 

 is expelled by the heat. The flame will char the outside of a 

 thin stick without burning through. Solution brownish. 



Grain. Fine and even though open. Surface bright almost 

 lustrous. 



Bark. Smooth, reddish, about J inch thick. 



Uses, etc. "As planking for boats it is most durable" (78). 

 It works well with all tools and turns especially well. It takes 

 an excellent polish without much trouble but it cannot be called 

 an ornamental wood. 



Authorities. McTurk (78), No. 60. Boulger (12), p. 424. 



The name " Black Cedar " applied to this species by Boulger 

 probably belongs to Brown Cirouaballi, No. 157. 



Colour. Light brown heart-wood gradually merging into 

 the dirty- white sap-wood which is about i ipch wide. 



Anatomical Characters. Transverse section : 



Pores. Clear, scarcely prominent, rather coarse, size 

 little variation : evenly distributed but with a tendency to form 



177 N 



