176 TEREBINTHACE., Protium. 
: XIV. PROTIUM. Burm. 
Flowers polygamous. Calyx campanulate, 4-toothed, persistent. Petals 
4, linear-oblong, inserted under the margin of the torus: sestivation valvular, 
the margin curved in. Stamens 8, shorter than the corolla, glabrous, inserted 
under the margin of the torus. Torus cup-shaped, fleshy, deeply crenated. 
Ovary sessile, 2-celled : ovules 2 in each cell, collateral, suspended from the 
middle of the axis. Style very short: stigma obtuse, 4-lobed. Drupe globose 
or ovate ; nut thick and very hard, bony, 2-celled (one of the cells by abor- 
tion often obliterated), at length divisible into two nuts. Seed solitary in 
each perfect cell—Trees giving out balsam. Leaves unequally pinnated: 
leaflets 3-7, without dots. 
We have never seen the parts of the flower in a quinary proportion, but Kunth 
seems to have sometimes observed this, if his Protium be indeed the same. Future 
observations on the living plants may prove, that there are not more than two dis- 
tinct species of the genus, corresponding to our two sections, but the specimens 
before us present a considerable difference of habit. 
$ 1. Calyx tubular-campanulate, 4-angled : stamens, 4 inserted on the back of 
the crenatures of the torus, 4 inserted with the petals under its clefts between 
the crenatures : torus 4-crenated, lining the tube of the calyx halfway up: 
drupe globose: sarcocarp thick, splitting into 4 valves : nut globose —Leaflets 
3-7, acuminated, all stalked : flowers few, in lax panicles.—Protium, Burm. 
540. (1) P. caudatum (W. & A.:) branches not spinescent: leaves un- 
equally pinnated ; leaflets 1-2 pairs, petiolate, ovate-lanceolate with a long 
fine sharp acumination, quite entire, glabrous: panicles fascicled, supra- 
» from the young shoots of the season, equal to or exceeding the 
length of the young leaves, shorter than the adult ones, 2-3 times dichoto- 
mous, lax.— Wight! cat. n. 552. 
541. (2) P. Roxburghiana (W. & A.:) branches not spinescent: leaves un- 
equally pinnated ; leaflets 1-3 pairs, shortly petioled, oval, sometimes acuteat 
the base, ending in a short abrupt often obtuse point, quite entire, glabrous: 
panicles from the ends ofthe last year's shoots, usually shorter than the petioles, 
dichotomous, lax.— Wight! cat. n. 548, 549, 550.—Amyris acuminata, Roab.? 
f. is p. 246 ; in E B C. mus. tab. 1831. dst ; 
r as we can judge from the specimens before us, this may be distin- 
guished from the last by the want ofthe long tapering point to the leaf. The 
peduncles in the present, arise “from the base of the tender shoots below 
the young leaves,” as Roxburgh describes in his plant from the Moluccas, 
and not from the “ tender shoots” themselves, a little above the axils of the 
young leaves; on which account we refer Roxburgh’s Am. acuminata here 
instead of to P. eaudatum. At page 96 of this work we mentioned that this 
would form a new genus next to Protium s we then meant the genus accort- 
Ac the character given by Kunth and De Candolle, from which ours above 
iffers considerably. 
542. (3) P. pubescens (W. & A.:) branches not spinescent: leaves un- 
equally pinnated ; leaflets usually 3 pairs, nearly sessile, roundish ovate, with 
a short obtuse acumination, quite entire, densely pubescent on the 
side: panicles (in fruit) rather longer than the petioles, 2-3 times dichoto- 
mous, lax.— Wight ! cat. n. 551. iz 
§ 2.? Calyx short, broadly campanulate (Vahl): torus 8-crenated, the erena- 
tures resembling glands, alternate with the stamens (Kunth): drupe ovate, 
pointed: nut A-angled.— Leaflets 3, or occasionally 5, sessile : peduneles 
2 
* 
