430 APPENDIX. No. V. 
Congo, seven of which belong to Acacia, as it is at present constituted: the 
eighth is a sensitive aculeated Mimosa very nearly allied to M. aspera of the 
West Indies, as well as to M. canescens of Willdenow, found by Isert in 
Guinea ; and perhaps ts not different from the species mentioned by Adanson 
as being common on the banks of the Senegal. 
Of the second order, CAXSALPINE®, the collection contains 19 species, 
among which there are four unpublished genera. One of these is Erythro- 
phleum of Afzelius, the Red Water Tree of Sierra Leone ; another species of 
which genus is the ordeal plant, or Cassa of the natives of Congo. Guilandina 
Bonduc and Cassia occidentalis, are also in the herbarium; the former, I 
believe, is unquestionably common to India and America; whether Cassia 
occidentalis be really a native of India and equinoctial Africa, im both of which 
it is now at least naturalized, is perhaps doubtful. 
Among PAPILIONACE &, which constitute the principal part of Legu- 
minosz in the collection, there is only one plant with stamina entirely distinct. 
This decandrous plant forms a genus very different from any yet established, 
but to which Podalyria bracteata of Roxburgh * belongs. 
The genera composing Papilionaceze on the banks of the Congo have, upon 
the whole, a much nearer relation to those of India than of equinoctial 
America. To this, however, there is one remarkable exception. For of the 
only two species of Pterocarpus m the collection, one is hardly to be dis- 
tinguished from P. Ecastophyllum, wnless by the want of the short acumen 
existing in the plant of Jamaica. ‘The second agrees entirely with Linneus’s 
original specimen of P. dunatus from Surinam, and seems to be not uncommon 
on the west coast of equinoctial Africa; having been observed by Professor 
Afzelius at Sierra Leone, and probably by Isert in Guinea :-+ while no species 
of Pterocarpus related to either of these has hitherto been observed in India, 
On the other hand Abrus precatorius and Hedysarum triflorum, both of 
which occur in the collection, are common to equinoctial Asia and America. 
TEREBINTACE®, as given by M. de Jussieu, appears to be made up of 
several orders nearly related to each other, and of certain genera haying but 
little affinity to any of them. Of this, indeed, the illustrious author of the 
* Coromand. Plants, 3 tab. + Reise naeh Guinea, p. 116. 
