366 PHANEROGAM I A. 



conformed to the cell : cotyledons irregularly lobed, fleshy, partly con- 

 solidated : radicle extremely short, centrifugal. 



The tree is said to be poisonous, producing inflammation of the 

 skin, with eruption, like Rhus venenata, or Anacardium and Seme- 

 carpus. From Semecarpus our plant generically differs in the valvate 

 aBstivation of the corolla, the smaller fructiferous receptacle, and the 

 drupaceous, depressed, knobby or tuberculate fruit (whence the name, 

 from oyxoq } a tubercle or swelling, and xap-6g, fruit), with an exceedingly 

 sinuous and lobed putamen, to which the seed is conformed. Perhaps 

 our plant is more nearly related to Mr. Bentham's genus Cyrtosper- 

 mum, from the Amazon : but that has decandrous and hermaphrodite 

 flowers, an ovoid drupe, and the putamen and cotyledons not lobed. 



Plate 43. — Oncocarpus Vitjensis: the male plant, in flower. 

 Fig. 1. Diagram of a male flower. 2. The flower, expanded. 3, 4. 

 Stamens. (5. Unexpanded female flower. 6. The same, expanded. 

 From a sketch by Mr. Agate.) 7. Branch of the panicle, with fruit, 

 of the natural size. 8. Vertical section of a young drupe and its 

 fleshy torus, 9. Transverse section of the same. 10, 11. Putamen, 

 from two different drupes, one seen from above, the other from below. 

 12, 13. Embryo, of the natural size. — The details enlarged. 



4. BUCHANANIA, Boxb. 



1. Buchanania Florida, Schauer. (Tab. 44.) 



B. glabra; foliis obovato-oblongis obtusis retusisve in petiolum attenuatisj 

 paniculis ramosis laxifloris glabellis; pistillw in disco cupulari rnulti- 

 dentato semiimmersis. 



Buchanania jlorida, Schauer, in Keliq. Meyen. p. 481. 



Hab. Yanua-levu, one of the Feejee Islands. 



A shrub, or tree, with stout and thick branches, towards the 

 extremity of which the leaves are crowded, glabrous, or the nascent 

 branchlets pubescent. Leaves obovate-oblong, 5 or 6 inches long and 

 2 or more wide, very obtuse, sometimes retuse, mostly acute at the base, 



