COURBARIL PLUM 



Anatomical Characters, etc. Transverse section : — 



Pores. Readily visible though not prominent, size 2, rather 

 coarse, little variation except in the groups : evenly scattered 

 in groups of as many as 33 pores, radially disposed, sometimes 

 two-rowed : rarely isolated pores : few, 0-38 per sq. mm. accord- 

 ing to the number in a single group : some filled with resin or 

 gum. 



Rays. Need lens, size 4-5, uniform : straight, but avoiding 

 the larger groups or interrupted by them : many, 7-10 per mm. ; 

 sometimes much less than the width of a pore-cluster apart, being 

 unevenly spaced. 



Rings. Doubtful as the concentric lines of soft-tissue often 

 cross the radial pore-groups without interrupting them. The 

 dusky or brown bands are quite independent of the structure. 



Soft-tissue. Abundant, encircling the pores and also in close 

 regular lines (about size 3), crenate between the rays and wavy 

 in contour, composed of conspicuously large (micro.) isolated 

 cells, about size 6 and 3-5 per mm. : brownish. The lines form 

 a beautiful reticulation with the rays and are of the same colour. 



Pith. ? 



Radial Section. The dusky zones appear as prominent lines. 

 Pores, large and clear but not prominent. Rays, small and 

 pronounced by reason of their dullness and whiteness. Rings 

 not traceable : the dusky lines do not coincide with the structure. 

 Soft-tissue visible as fine whitish lines even with the unaided eye. 



Tangential Section. As the Radial, but apparently very unlike 

 as the dusky lines lose their character entirely and thus are apt 

 to deceive. The rays are fine, white lines about 2.0 mm. high, 

 the soft- tissue is not so fine and the lines are not so close together. 



Type specimen from a log sent to the Indian and Colonial 

 Exhibition by the Government of British Guiana. I suspect 

 an error in the nomenclature as the structure is not that of 

 a Leguminous wood. It resembles rather that of some 

 Meliaceous woods such as Dysoxylon. I place it here hoping 

 that someone on the spot in British Guiana may clear the 

 matter up. 



No. 85. COURBARIL PLUM. Hymencea 

 Courbaril. Linn. 



Plate VII. Fig. 56. 



Natural Order. Leguminoseae. 



Synonyms. H. aminifera. Stokes. H. resinifera. Salisb. The 

 generic names Courbari and Courbaril are synonymous with 

 Hymencea. 



Alternative Names. Courbaril : Locust. Jetahy : Jetaliy- 



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