APPENDIX. No. V. 477 



families consist: and there aie even about forty species common to these 

 distant regions. 



To the vegetation of Equinoctial America it has certainly much less affinity. 

 Several genera, however, which have not yet been observed in India or New 

 Holland, are common to this part of Africa and America:* and there are 

 upwards of thirty species in the Congo herbarium, which are also natives of 

 the opposite coasts of Brazil and Guiana, 



As the identity of species, especially of the Dicotyledonous division, 

 common to equinoctial America and other intratropical countries, has often 

 been questioned, I have subjoined two hsts of plants included in the Congo 

 herbarium, of which the first consists of such species as are common to Ame- 

 rica and India : and the second, of such as are found in America only. 



I have given also a thii'd list, of species common to Congo and India, or its 

 Islands, but which liave not been observed in America : 



And a fourth is added, consisting of doubtful plants, to which I have, in the 

 mean time, apphed the names of those species they most nearly resemble, and 

 to which they may really belong, without, however, considering their identity 

 as determined 



I. List of Plants common to Equinoctial Africa, America, and Asia. 



Gleichenia Hennanni Prodr. Flor. i Boevhaaviamutabilis Prorfr. Flor.Nov. 

 Nov. Holl \ Holl. 



Mertensia dichotoma Wtlld. J Ipomcea pes caprae Nob. 

 Agrostis Virginica L. Convolvoulus pes caprae L. t . 

 '^ ,'perus articulatus L. ■) t ■■>■ • -r ( 

 ... ,, , , \ead.sp. 

 niloticus Vanl, J 



Cyperus articulatus L. t brasiliensis L. i 



Ipomoea pentaphylla Jacqu 



Ijpocarpha argentea Nob. t Scoparia dulcis L. 



Hyp^lyptum argenteum Valil. J Heliotropium indicum L. 

 Eleocharis capitata Prod-Fl.Nov.Holl. Sphenoclea zeylanica Gcert. 

 Fuirena umbellata L.Jil. Ageratum conyzoides L. 



Pistia Stratiotes L. 



* Namely, EIeeis Jacqu. Rivina Z. Telanlhera Nob. (Alternanthera; pentandrse.) 

 Alchornea Sw. Blechum Prrnir. Flor. Aov. Holl. (Blechi sp. Juss.) Schwenckia L. 

 Hyplis Jacqu. Vandellia L. Annona L. Banisteria JVob. (BanisteriiE sp. L.) Paullini.i 

 Juss. (Paullinias sp. L.) Visraia Ruiz, el Puv, Conocarpus L. Legnotis Sw. (Caseipourea 

 Attbl.) Chailletia Dtcand. 



