76 
Properties. For Winters bark is sometimes substituted that of Canella 
alba, which it resembles in its aromatic pungent qualities. Fee. 
GENERA. 
Canella, P. Br. Platonia, Mart. 
Winterana, L. 
Order LVI. RHIZOBOLACEtE. 
Rhizobole®, DC. Prodr. 1, 599. (1824) ; Cambessedes in Aug. St, HU. FI. Bras. Merid. 
1. 322. (1827). 
Essential Character. — Sepals 5, more or less combined, imbricated in aestivation. 
Petals 5, thickish, unequal, arising along with the stamens from a hypogynous disk. Sta- 
mens extremely numerous, slightly monadelphous, arising in a double row from a disk, the 
innermost being shorter and often abortive ; anthers roundish. Ovary superior, 4-6-celled, 
4-6-seeded,* styles 4-6; stigma simple; ovules peltate. Fruit formed of 4-6-combined 
nuts, part of which are sometimes abortive; each nut indehiscent, 1 -seeded, 1 -celled, with 
a thick double putamen. Seed reniform, without albumen, with a funicle which is dilated 
into a spongy excrescence ; radicle very large, constituting nearly the whole of the almond- 
like substance of the nut, with a long 2-edged caulicle, having two small cotyledons at the 
top, and lying in a furrow of the radicle. — Trees. Leaves opposite, stalked, compound, 
without stipules. Flowers racemose. 
Affinities. A very distinct order, allied to Sapindacese, in its hyiiogy- 
nous flowers and its fruit ; in some measure also related to .dEsculaceae on ac- 
count of its opposite compound palmate leaves ; but in ^Esculaceae the radicle 
is small, and the cotyledons very large, while in Rhizobolacese the radicle is 
enlarged, and the cotyledons small. In both orders the albumen seems to be 
absorbed by the various parts of the embryo. De Candolle, Prodr. 1. 599. 
It is, however, with Guttiferae that Rhizobolacese best agree. “ In these two 
orders w*e find the leaves opposite and articulated at their base, hypogynous 
petals with an aestivation of the same nature ; numerous hypogynous stamens, 
and exalbuminous seeds. The large flowers of Caryocar call to mind those of 
most Guttiferae, its inflorescence is neaidy that of Moronobea ; its fruit has a 
relation to that of Mammea, and presents, in that genus as in several others of 
• the same order, a single seed in each cell.” Camh. in Aug. St. H. FI. Bras. 1. 
323. 
Geography. Six large trees found in the forests of the hottest parts of 
South America constitute the whole of the order. 
Properties. Some of them are known for producing the Souari (vulg6 
Suwnrrow) Nuts, of the shops, the kernel of which is one of the most delicious 
fruits of the nut kind that is known. An oil is extracted from them not infe- 
rior to that of the Ohve. 
GENUS. 
Caryocar, L. 
Rhizoholus, Gaertn. 
- Saouari, Aubl. 
Pekea, Aubl. 
Obder LVII. MARCGRAAVIACEiE. 
Mabcgraaviace^, Juss. Ann. Mus. 14. 397. (1809) ; DC. Prod. 1. 565. (1824). 
Essential Character. — Sepals from 2 to 7, usually coriaceous and imbricated. 
Corolla hypogynous ; sometimes gamopetalous, calyptriform, entire, or torn at the point. 
