THE TIMBERS OF COMMERCE 



Colour. Heart-wood nut-brown, uniform in colour. Sap- 

 wood ? 



Anatomical Characters. Transverse section : — 



Pores. Visible to the unaided eye, size 2 to 3, uniform : 

 scattered evenly but usually a zone in the outer side of the ring 

 with few pores : 13 to 25 per sq. mm. : single or in subdivided 

 groups of 2 to 4 pores which appear light brown in the solid : 

 some red-coloured contents : shine after moistening. 



Rays. Need lens, size 5, fine, uniform : equidistant : long : 

 very nearly straight : brown : denser than the ground- tissue : 

 numerous 6 to 9 per mm. : the width of a large pore or less apart. 



Rings. Doubtful : a zone of dense wood free from pores at 

 intervals and an extremely fine boundary line. 



Soft-tissue. Perhaps the fine boundary-line : also encircling 

 and sometimes concentrically linking the pores. 



Radial Section. A shade lighter than the Transverse section, 

 Pores open, empty, cellular grooves, some shining, others red 

 but not quite filled with resin. Rays, need lens. Rings, not 

 traceable. 



Tangential Section. As the Radial, but the rays are minute 

 lines about o - 25 mm. high. 



Type specimens from commercial sources, unauthenticated. 



No. 214. CELERY PINE. Phyllocladus tricho- 

 manoides. D. Don. 

 Plate XVI. Fig. 136. 



Natural Order. Coniferse. 



Synonyms. P. rhomboidalis. Rich. 



Alternative Names. Celery-topped Pine (12). Celery-leaved 

 Pine (61). Tauekaha or Tanekaha (91). 



Source of Supply. New Zealand only : " almost confined to the 

 Auckland district " (91). 



Physical Characters, etc. Recorded dry-weight 47^ lbs. per 

 cu. ft. Hardness, Grade 6, compare English Beech or rather 

 softer. Smell faint but when worked, like bad cheese. Taste 

 terebinthine like Pine. Burns well, ignites readily : no specific 

 aroma : embers glow dully in still air. Solution colourless. 



Bark. Surface of the wood below the bark is reddish-brown, 

 coarsely channelled and smooth to the touch. 



Uses, etc. "Strong, fit for spars, planking and carpentry 

 generally" (61). "Affords timber 40-70 ft. long by 1-3 ft. 

 in diam." (91). " Durable, especially in moist situations " (57). 

 Hard to saw. A compact wood for a Conifer. 



Authorities. Perceval (91), p. 66. Laslett (61), 434. Kew 

 Guide (57), p. 79. 



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