TEREBINTUACE^. 



2C1 



five stamens, those which correspond to the intervals of the petals 

 being slightlj' longer. All have a free filament inserted below an 

 hypogynous annnlar disk, dilated at the base and tapering at the 

 top, supporting a bilocular, introrse anther, dehiscing by two longi- 

 tudinal clefts. The gynaeceum, rudimentary in the male flowers, is 



Surscra (Eiiltirscrn) gummifera. 



Fig. 269. Male flower (4). 



Fig. 270. Longitudinal 

 section of male flower. 



Fig. 271. Hermaphro- 

 dite flower (a). 



Fig. 273. Longitudinal section 

 of hermaphrodite flower. 



Fig. 272. Diagram of 

 hermaphrodite flower. 



Fig. 27-1. Hermaphrodite 

 flower without the perianth. 



composed of a fi-ee ovary tapering upwards in a style whose stigma- 

 tiferous apex is dilated and divided into five lobes, superposed 

 like the cells (fig. 26G), to the petals. In the internal angle of 

 each cell, the placenta supports two collateral, descendent, auatropous 

 ovules, with micropyle directed upwards and outwards (fig. 208). The 

 fruit, accompanied at its base by a more or less persistent calyx, is a 

 di'upe whose stones, one to six in number, each enclose a descendent 

 seed. The ex-albuminous embryo has thick fleshy cotyledons, 

 several times folded together, and a short superior radicle. B. 

 obtusifolia, chosen as the type of the genus Mariffuia^' is a handsome 

 tree with alternate leaves, stipulate compound imparipinnate, with 

 opposite folioles. Its axillary or super-axillary inflorescence is in 

 ramified clusters of biparous cymes in which each flower occupies the 

 axil of a small bract. 



' Comi^v.^. K\.'l\.\n Ann. Sc. Nat. ser. l,ii. Dammnrn Certn. 

 3.50.— DC. Pndr. ii. 79.— Endl. Oe». 5935.— TvUMjmi.). 



Fruct. ii. 100, t. 103 (not 



