436 NATURAL HISTORY OF PLANTS. 
hypogynous disk or the foot of a gynæceum, with oppositipetalous 
carpels united by their styles, independent or united for a variable 
distance in the ovary. Ovules 2—o, transverse or descending with 
exterior and superior micropyle. Fruit in several shells (rarely 
fleshy). Seeds albuminous, with embryo often curved.—Herbs, 
often frutescent at base, whose divers organs, especially the leaves, 
often pinnatisect, are covered with glandular, pellucid, fragrant spots. 
Plants of temperate regions, especially the North.—(5 genera.) 
Il. Cuspariem.'—F lowers regular, or oftener irregular, with con- 
vex receptacle. Petals often united, or adhering between themselves 
to a variable distance, forming a more or less elongated tube. 
Androceum often diplostemonous, with stamens often united to a 
variable distance with the tube of the corolla, all fertile, or more 
generally partly sterile and rudimentary. Carpels generally free in 
the ovary, containing two descending ovules, with exterior and supe- 
rior micropyle. Fruit generally formed of independent shells, with 
elastic dehiscence, the endocarp separating from the exocarp. Seeds 
albuminous or exalbuminous, with cotyledons more or less convolute. 
—Generally wood plants, usually glandular-punctuate, inhabiting 
tropical America.—(9 genera.) 
IIT. Diosmua.’—Flowers regular, generally small, hermaphrodite, 
with receptacle convex, or more or less concave, edged by a peri- 
gynous or hypogynous disk. Petals free, often with erect claw. 
Androceum isostemonous or diplostemonous, inserted outside the 
disk, the oppositipetalous stamens sometimes sterile. Gynæceum 
formed of 1-5 oppositipetalous carpels, generally free in the ovary,’ 
the styles united into a common column. Ovules two in each carpel, 
descending with superior and exterior micropyle. Shells often 
rostrate, with separable endocarp. Seeds exalbuminous; embryo 
thick and straight, with fleshy cotyledons.— Ericoidal shrubs of 
South Africa, with narrow leaves,‘ often imbricated, simple, coria- 
ceous, punctuate.—(11 genera.) 
IV. Boronixæ."—Flowers generally constructed’ like those of 

1 Cusparieæ DC., in Mém. Mus., ix. 141 
(1822).—EnDz., loc, cit., 1150, Trib. 1.—Ag., 
op, cit., 221, t. 19. 
2 Diosmee R. Br., in Flind, Voy. (1814), ii. 
545,—A. Juss., loc. cit., 883.—BarvL., Ord. 
Nat.,386.—ExDz., Gen., 1149, Ord. 251.—B.H., 
Gen., 288, Trib. 3.—AG., op. cit., 229, t. 19. 
3 Except in Calodendron. 
4 The leaves of Calodendron are single, wide, 
and membranous. 
5 Boronieæ Banrtu., Ord. Nat. 388. — 
Enpu., Gen., 1154, Trib. 4.— AG., op. cit., 
229.—B. H., Gen., 291.—Diosmee Australa- 
sice A. Juss., loc, cit.—Diplolæneæ AG., loc, cit. 
5 Except those of Diplolæna, which are 
destitute of a true calyx. 
