LEGUMINOSM-CJ^ALVINIEJE. 



79 



mounted by a style whose apex is hollowed out, with stigmatic 

 papilla? surrounding its aperture. The ovary contains only two 

 ovules or rarely more. The fruit is a membranous pod, externally 

 resembling that of Mezoneitmm ; it dehisces in a very peculiar \\. 

 not down its edges, but along the line which would correspond to 



HcEmatoxylon campechiaimm (Logwood-tree). 



Fig. 49. 



Habit (i). 



the junction of the wing and the body of the pod in Mezoneiirum.. 

 It contains one or few seeds; the seed is flattened and much elon- 

 gated transversely, and is attached by the middle of its ventral edge. 

 It contains an embryo whose long axis is also transverse, and pos- 

 sesses a cylindrical slightly curved radicle, a gemmule with imbri- 

 cated leaves and two very peculiar cotyledons which are very short 

 and broad, each divided into two lobes which are folded together, 

 and reflexed where they come in contact with the radicle. The 

 only known species of this genus is the Logwood-tree (Fr., Bois de 



