0CHNACE2E. 



367 



In 0. Theophrasta? also distinguished generically under the name 

 Wolkcnsleinia ? the flower presents outside the five petals eight 

 or ten coloured sepals 3 instead of five. 



Beside Ouratea is found Elvasia, which instead of totally inde- 

 pendent carpels has them united below into a 2-5-lobed ovary and 

 an androceum formed of four, five, or an indefinite number of sta- 

 mens ; Tetramerista, which has tetramerous, tetrandrous flowers with 

 four-lobed ovary; and Ochna (figs. 381-384), whose name this 

 family bears, but which may be considered as a type derived from 

 Ouratea, having flowers with an indefinite number of stamens, a 

 gynseceum and fruit formed of independent carpels, like those of 

 Ouratea, from three to fifteen in number. 



Futhemis leucocarpa. 



II. EUTHEMIS SEEIES. 



The flowers of Euthemis" (fig. 385) are externally similar to those 

 of Ouratea and Ochna, with five unequal, ciliate, imbricated sepals, 

 more or less persistent, and five alternate, im- 

 bricated or contorted petals. The androceum 

 is composed of five fertile, alternipetalous 

 stamens, formed of a very short filament and 

 two-celled rostrate anther, dehiscing at the 

 summit by a pore ; and five sterile stamens, 

 alternating with the preceding, which may be 

 partly wanting. The gynseceum is inserted 

 upon the apex of the receptacle slightly pro- 

 longed into a cone ; it is composed of an ovary 

 with five alternipetalous incomplete cells, 

 tapering above into a subulate style, stigma- 



tiferous, simple or scarcely dilated at the apex. Towards the internal 

 angle of each cell are two descendent, anatropous ovules, with 

 micropyle directed upwards and outwards. The fruit is a small 



Fig. 385. 

 Diagram. 



1 Lind. ex Hook, f., in Bot. Mag., t. 5612. 

 — Her., in Sortie. Franc, xxi. 15, t. 1. 



- There are five more interior quincuncially 

 arranged, exactly alternating with the petals ; 

 then outside these three others similarly imbri- 

 cated, two of them posterior. The petals are con- 

 torted, and the five shortest stamens superposed 



to them are inserted a little lower and outside 

 the five others. 



3 Regel., in GartenJL, xiv. (1865), 131, t. 471. 



1 Jack, Mai. Misc., in Hook. Bot. Misc., 

 ii. 69. — Wall., in Roxb. Ft. Intl., ii. 303. — 

 Endl., Gen., n. 5961. — 13. H., Gen. 319, 

 n. 6. 



