EAST INDIAN MAHOGANY 



The arrangement of the pores seems to be between 

 very-loosely-oblique or festooned lines or a combination of the 

 two. 



Rays. Just visible, size 5 to 6, uniform : equidistant, much 

 less than a pore-width apart : avoiding the pores (even the second 

 ray from a pore follows its contour) : numerous, 10-15 per mm. : 

 much laxer than the ground-tissue : composed of elongated, 

 rectangular cells, very coarse : appear hoary. 



Rings. Obscure : not traceable in any way. 



Ground-tissue. Some of the cells contain gum. 



Soft-tissue. None or scattered single cells. 



Radial Section. Slightly lighter in shade than the Transverse 

 section : pores very prominent, orange-coloured, shining grooves : 

 lustre due to the linings : undulating : contain a few globules of 

 golden gum. Rays, just visible, dull, inconspicuous, hoary lines. 

 Rings not traceable. 



Tangential Section. As the Radial, but the rays appear as 

 fine, hoary, coarse-celled lines about 1.0 mm. high (lens). 



Type specimen received from the Governor of Lagos. 



The structure of this wood is very uncommon and inter- 

 esting. 



No. 211. EAST INDIAN MAHOGANY. Species 

 unknown. 



Plate XV. Fig. 133. 



Physical Characters, etc. Recorded dry-weight 43 lbs. per 

 cu. ft. Hardness Grade 4, compare Maple. Smell or taste none. 

 Burns well : embers glow in still air. Solution pinkish-brown. 



Grain. Rather coarse and open. Surface rather dull, relieved 

 by the numerous glistening drops of resin in the otherwise dull 

 pores. 



Bark.? 



Colour. Dull brown, greyish-brown, reddish : quite uniform. 



Anatomical Characters. Transverse section : — 



Pores. Readily visible, size 1 to 2, moderate-sized, somewhat 

 variable : in radial, subdivided groups of 10 or more pores uni- 

 formly scattered : 10 to 20 per sq. mm., oftener the lesser number. 



Rays. Need lens, size 5, fine, uniform : equidistant, a pore- 

 width or less apart : scarcely avoiding the pores : 6 to 10 per mm. 

 of the same density but of lighter colour than the ground- tissue. 



Rings. Indistinguishable. 



Soft-tissue. In very fine lines a little coarser than the rays, 

 size 4, in very close, concentric circles about a pore-width apart 

 connecting the pores. 



Pith.? 



241 R 



