148 
Sub-Order. SANGUISORBEi?^. The Burnet Tribe. 
Rosace/e, § Sanguisorbese, Juss. Gen. 336. (1789) ; DC. Prodr. 2. 588. (1828) ; Lindl. 
Synojjs. 102. (1829); Martins Conspectus, iVo. 215. (1835). — Cliffortiace/E, Id, 
No. 216. 
Essential Character. — Flowers often unisexual. Calyx -with a thickened tube and 
a 3- 4- or 5-lobed limb, its tube lined with a disk. Petals none. Stamens definite, some- 
times fewer than the segments of the calyx, with which they are then alternate, arising from 
the orifice of the calyx; anthers 2-celled, innate, bursting longitudinally, occasionally 1- 
celled, bursting transversely. Ovary solitary, simple, with a style proceeding from the 
apex or the base ; ovule solitary, always attached to that part of the ovary which is next the 
base of the style ; stigma compound or simple. Nut solitary, enclosed in the often indu- 
rated tube of the calyx. Seed solitary, suspended or ascending ; embryo without albumen ; 
radicle superior or inferior ; cotyledons large, plano-convex.-^Hcrftcfceous plants or under- 
shrubs, occasionally spiny. Leaves simple and lobed, or compound, alternate, with stipules. 
Flowers small, often capitate. 
Anomalies. The stipules of ClifFortia cohere with the leaves. Alchemilla arvensis has 
simple 1 -celled anthers bursting transversely, and ascending ovules. 
Affinities. Tliis sub-order, usually combined with Rosacese, appears as 
if it demanded a distinct station, on account of its constantly apetalous flowers, 
its indurated calyx, and the reduction of carpels to one only ; it is, however, 
not, as far as I know, distinguishable by any other characters. The presence 
of petals, a character assigned to Acaena, I have shown, in the Botanical 
Register, to have no existence. Usually the ovule is suspended, the style 
arising from below the apex of the carpel ; but when the style proceeds from 
the base of the carpel, the ovule is ascending, in aU cases adhering to the 
ovary immediately over against the origin of the style. Various kinds of 
adhesion between the leaves and the stipules take place in the genus ClifFortia, 
and have given rise to a number of errors ; for an explanation of which, see 
De Candolle’s remarks in the AnnaJes des Sciences Naturelles, 1. 447. Von 
Martins has, I perceive, an order Cliflbrtiacese ; but I am unacquainted with 
the grounds upon which it is cut off from Sanguisorbese. 
Geography. Natives of heaths, hedges, and exposed places in Europe, 
North and South America beyond the tropics, and the Cape of Good Hope ; 
in which latter country they represent the Rosacese of Europe. 
Properties. Their general character is astringency. A decoction of 
Alchemilla vuilgaris is slightly tonic. This is asserted, by Frederick Hoffmann, 
and others, to have the efiect of restoring the faded beauty of ladies to its 
earliest freshness. Sanguisorba officinalis, or common Bumet, is a useful 
fodder. A. R. 
GENERA. 
Alchemilla, L. Polylepis, R. et P. Sanguisorba, L. Cliffortia, L. 
Aphanes, L. Acasna, Vahl. Poterium, L. Morilandia, Neck. 
Margyricarpus, R.etP. Ancistru'n'i,Yoxst. Pimpinella, Addins. N enax, Gd^rtn. 
Cercocarpus, H. B. K. 
« 
Order CX. LEGUMINOS^, ] 
or \ The Bean Tribe. 
FABACE^. J 
Leguminos.®, /mss. Gen. 345. (1789); Bronn. Diss. (1822); DC. Prodr. 2. 93. (1825); 
Lindl. Synops. 75. (1829). 
Essential Character. — Calyx 5-parted, toothed, or cleft, inferior, with the odd seg- 
