124 NATURAL HISTORY OF PLANTS. 
pauciovulate ovary tapers into a style which is undilated at its stig- 
matiferous apex. The dorsal rib of the flattened obliquely oval 
coriaceous one- or two-seeded pod is edged by a narrow wing. The 
seeds are organized as in Cassia. Three or four species of Dicorynia 
have been described, handsome trees from North Brazil and Guiana,’ 
whose alternate imparipinnate leaves have few coriaceous leaflets, 
and whose flowers are grouped into immense terminal compound 
ramified racemes, 
Martia’ (figs. 108-110) has flowers closely resembling those of the 
preceding genera, the receptacle and insertion being as in Cassia. The 
Martia excelsa. 
Fre. 108. Fig. 109. Fre. 110. 
Flower. Diagram. Longitudinal section of flower. 
calyx consists of five free sepals, all of nearly the same breadth,’ and 
pretty thick, except towards the edges ; these are slightly imbricated, 
and sometimes even valvate towards the base. The free petals are 
very decidedly imbricated, and are nearly equal in size, except the 
posterior one, which is internal in the bud, and a little broader than 
the rest. The androceum consists of four stamens, two posterior 
and two lateral,‘ each composed of a distinctly hypogynous filament, 
short stumpy and subpyramidal, and an elongated sub-basifixed 
introrse anther, two-celled, though below divided into four locelli, 
and dehisving by two short pore-like clefts near its acuminate apex. 
Watp., Rep., v. 562. There are probably 3 The anterior sepal is, however, a little 
only two species. narrower than the rest (fig. 109). 
2 Benru., in Hook. Journ., ti. 146 (nec 4 The outer stamen may be sometimes 
Luanpr., nec Sprena., nec Zucc.)—Enpu., developed; it is generally wanting in I. 
Gen. n. 68122.—B. H., Gen., 571, u. 323.— —excelsa from Guiana. 
Martiusa Bentu., loc, cit., 84. 
