Order IV. 
DIADELPHIA DECANDRIA. 
G27 
10459 The only species 
10460 Racemes with 1-fl. pedicels, Leaves pinnated with an odd one, Stipules spiny, Pods smooth 
10461 Racemes with 1-fl. pedicels, Leaves pinnated with an odd one. Branches and pods viscid with glands 
10462 Racemes with 2-fl. pedicels, Cal. truncate, I-,eaves pinnated with an odd one, Stem unarmed 
10463 Petioles somewhat spiny. Leaflets lanceolate mucronate downy, Pedic. 1-flowered 
10464 Racemes axillary few-flowered. Calyxes and branchlets finely bristly 
10465 Racemes axillary. Leaves pinnate with an odd one. Stem hispid 
10466 Pedunc. simple several. Leaves in 4 pairs. Petioles unarmed. Pods cylindrical 
10467 Leaves about 4 pair ; leaflets obcordate, Peduncles twin shorter than flower 
10468 Pedunc. simple. Leaves 4 stalked hoary terminated by a weak spine, Pods downy 
10469 Pedunc. simple solitary. Leaves in about 8 pairs, Stipules spiny. Pods compressed 
10470 Pedunc. simple. Leaves in many pairs downy. Petioles filiform spiny, Branches villous 
10471 Pedunc. simple. Leaves in 2 pairs, Leafl. obi. lane, silky, Stipules and petioles spiny 
10472 Pedunc. simple, Leaves in 4 pairs, Leafl. cuneate smooth. Stipules and petioles spiny 
10473 Pedunc. 3-fl. Leaves in 2 pairs silky. Petioles spiny persistent, Pods bladdery 
10474 Pedunc. simple, Leaves in 2 pairs. Leaflets obovate shining. Stipules and petioles spiny 
10475 Pedunc. simple, Leaves about 4 somewhat petiolated terminated by a weak spine 
10476 Pedunc. simple. Leaves 4 sessile 
10477 Stalk of pod longer than persistent filaments 
10478 Stalk of pod shorter than persistent filaments 
10479 Leaflets obi. blunt hoary beneath, Stem shrubby, Branches silky with down 
10480 Leaflets linear emarginate smooth. Stem weak, Raceme axillary 
10481 Leaflets linear emarginate hairy, Cal. without bractes with black hairs 
10482 Leafl. obi. downy. Stem erect. Racemes terminal 
10483 Leaflets in 7 pairs ovate acute smoothish, Racemes axillary subcapitate 1-sided 
10484 Leaflets ellipt. retuse. Prominences of the standard short 
10485 Leaflets obcordate glaucous, Pedunc. about 6-flowered, Pods closed at end 
10486 Leafl. obovate emarginate glauc. Prom, of standard blunt very small. Pods open at end 
10487 Leafl. roundish ellipt. very blunt mucronate. Prom, of standard long ascending, Stem shrubby 
and Miscellaneous Particulars. 
R. hispida is a very handsome shrub, but it requires a sheltered situation, otherwise the branches are very 
liable to be shattered or bloivn off by high winds. In young trees grafted above ground, the fracture com- 
monly takes place at the graft, so that a good preventative is to graft on the root a little below the surface. 
Grafts in this manner are also much more certain of success. 
R. viscosa resembles, in its leaves and flowers, the common acacia ; but is, altogether, a much handsomer tree. 
1569. Caragana. This genus has been confounded by Linnaeus and his followers with Robinia. The name 
is derived from the appellation of the most common species in Tartary, where it is called among the Moguls, 
Carachand. Altagana, the name of another species, is in like manner a slight alteration of the Tartar name 
Aldachana. 
C. spinosa, on account of the length and toughness of the branches, and its large stout thorns, is admirably 
adapted to form impenetrable hedges, and is sufficiently hardy to bear our climate. About Pekin, they 
stick the bushes in clav on the tops of their walls, to prevent persons from getting or looking over them. 
{Pallas.) 
C. Halodendron is a handsome shrub, and grows in Siberia on dry naked salt-fields, and it is probably from 
the want of this principle in our garden soils, that it so seldom flowers here. 
C. pygmsea is a weak low shrub, with a shining j'ellow bark, with wood of a deep bay, almost as hard as horn. 
C. frutescens is used by the Tartars for the same pui-poses as osiers, for which its tough shoots render it 
proper. 
C. jubata is remrakable plant, its shoots always remaining covered by the persistent brown stipula? of the 
fallen leaves. It is extremely difficult to propagate, and is rarely even seen in this country. The most suc- 
cessful cultivators of it are Messrs. Loddiges and Son. 
1570. Swainsonia. Named after the late Mr. Isaac Swainson, who had a botanic garden at Twickennam. 
1571. Suiherlandia. In honor of Mr. James Sutherland, who published, in 1683, an 8vo. catalogue of the 
Physic Garden at Edinburgh. This and the former genus seed freely, and may also be readily increased by 
cuttings. 
1572. Lessertia. Named by Decandolle in honor of M. Stephen Delessert, to whose mother Rousseau's 
Letters on Botany were addressed. 
1573. Colutea. An ancient name of a bush with sweet-scented flowers ; iwrobably similar to the genus now 
Ss 2 
