4 INTRODUCTION. 
Richard had removed to castaphyllum ; included Willdenow's D. arborea, which is а 
Pongamia; Poiret's D. pentaphylla and D. heptaphyila, which are Lonchocarpi; and added 
for the first time a species—D. sericea (Spreng., not of G. Don) which is а AMillettia. 
He thus intensified the pre-existing confusion, but added nothing to our knowledge 
of the genus. Тһе review of the genus presented by G. Don in 1832* is not really 
greatly in advanee of those that had preceded it, for the same old confusion recurs, 
with indeed the addition of still another genus (Mundelez) to the list of those mis- 
taken for Dalbergia; Don's D. Barclayii is а Mundela. Не has, however, described 
as new several species that are truly Dalbergias, the only one that interests us being 
D. sericea from Nepal, а quite distinct species, confused by Wallich with 
D. hircina, which is a name that had been proposed by Hamilton for D. lanceolaria. 
The next considerable addition to the genus Dalbergia was made by Wallich 
when the distribution of the Honourable East India Company's Herbarium took 
place.t Graham, then Professor of Botany in the University of Edinburgh, seems 
to have been mainly responsible for the identification of the various species. With 
a genus so difficult as Dalbergia, and where so great a mass of material had to be 
dealt with, it is not surprising that a few errors should have crept into the list, The 
species for the first time named in this list are;— D. ovata Grah.; D. foliacea Wall; Р. 
cana Grah,; (D. tingens Ham. = D. stipulacea); D. cultrata Grah.; (D. glauca Wall. = 
D. ovata); (D. cassioides Wall. = D. stipulacea) ; (D. rufa Grah. = D. tamarindifolia) ; 
(D. multijuga Grah. = D. tamarind foiía) ; (D. livida Grah. = D. stipulacea in part and 
D. tamarindifolia in part); D. rostrata Grah.; D. stipulata Wall. (the name of this 
species had to be altered subsequently to D. velutina Benth.); (D. purpurea Mall. 
D. cana Grah.); (D. hircina Ham. = D. lanceolaria, but part of the issue, though not 
Hamilton’s part, is = D. sericea); D. torta Grah. ; (D. flesuosa Grah, = D. reniformis) ; 
(D. horrida Grah, = D. spinosa); D. sissoides Grah. The names within brackets 
prove on examination to belong to species already supplied with names, so that 
Wallich’s list differentiates only eight previously unknown Daullergias, Under D. 
paniculata, however, was issued D. multiflora Heyne, which is not D. paniculata, as 
Wallich and Graham supposed, but is the species previously designated by Dennstedt 
Amerimnum horridum, aud subsequently named by Nimmo} Dalbergia sympathetica ; 
while under D. hircina was included not only Hamilton's plant of this name, which is 
D. lanceolaria, but another which, just about the time the list was issued, was differ- 
entiated by G, Don as D. sericea, The Walichian collection therefore contains іп 
all nine species vot formerly known. Тһе Wallichian list includes Dalbergia 
ougeinensis, which is ап Ovgeinia, also D. robusta and D. scandens, which are species 
of Derris, sect. Brachyvterum. In 1834 Wight and Walker-Arnott, in their account of 
Dalbergia§ still retained Derris (Brachypterum) scandens in Dalbergia, but from this time 
onward the limits of Dalbergia have been, in all important works on Indian botany, 
carefully observed, and the additious to the genus that have from time to time 
been made do not require to be recorded, since they appear from the citations given 
under the individual species dealt with in this work, 
* Gen. Syst. Gard, ii. 374. £ Grah. Cat. Bomb. РІ. 55 (1839), 
+ Lith. Cat., 6847—5877 (1832). 6 Prodr. Penins, Ind. i. 204, 
