CHRYSOBALANACE^. 489 



veloped flower-buds, when it is shorter than the adjacent leaf. 

 Flowers bibracteolate, small; the buds only 2 lines in length. Tube 

 of the calyx short, gibbous, villous inside ; the 5 lobes ovate, acute. 

 Petals 5, not longer than the calyx, ciliolate, 2 or 3 of them (on the 

 side next the ovary) ovate, the others oblong-lanceolate. Stamens 

 apparently varying from 8 to 12, of which from 6 to 8 are fertile, and 

 2 to 4, on the side remote from the ovary, sterile ; the latter being 

 reduced to small and naked tooth-like processes or filaments : anthers 

 didymous, two-celled. Ovary coherent to the gibbous side of the 

 calyx-tube, two-celled, villous, as is the base of the basilar style. 

 Ovule solitary in each cell, anatropous ; the rhaphe on the side next 

 the dissepiment. Fruit an ovoid drupe, of nearly 2 inches in length, 

 slightly flattened laterally; the epicarp smooth; the putamen very 

 thick and woody, with its surface little roughened, two-celled, and 

 usually two-seeded : but no well-formed and mature seeds are found in 

 the fruits preserved in the collection. 



In a drawing made by the Botanical Artist of the Expedition, the 

 flower is represented as having fourteen fertile stamens, occupying a 

 complete circle, and no sterile filaments. But all the young flower- 

 buds I could venture to dissect were as represented in the above 

 description and the accompanying analyses. 



The species is, without doubt, nearly related to P. Sumatranum, 

 Benth. (Petrocarya Sumatrana, Jack) ; which is said to have the 

 elliptical-oblong leaves acute at the base, and seven fertile stamens on 

 one side of the flower, and as many abortive ones on the other. 



Plate 54, B. — Parinarium insularilm : a branch, with flower-buds, 

 and the summit of another, with a fruit, of the natural size. Fig. 1. 

 An opened flower-bud. 2. Vertical section of the same. 3. One of 

 the anterior petals. 4. One of the posterior petals. 5, 6. Stamens, 

 seen anteriorly and posteriorly. — These details variously enlarged. 

 7. Transverse, and 8, longitudinal section of the drupe, of the natural 

 size. 



2. Parinarium? Margarata, Sp. Nov. (Tab. 54.) 



P. glabrum; foliis oblongis basi acutis eglandulosis ; drupa septo tenui 

 evanido demum soepe unilocular i ; cotyledonibus conferruminatis. 



123 





