NATURAL ORDERS. Ill 



lisbed genera. One of these is Erythroplilenni of Afzelius, 

 the Red Water Ti-ee of Sierra Leone ; anotlier spceics of 

 which genus is the ordeal plant, or Cassa of the natives of 

 Congo. Guilandina Bon chic and Cassia occidentalism are 

 also in the herbarium ; the former, I beheve, is unquestion- 

 ably conunon to India and America ; whetlier Cassia 

 occidentalis be really a native of India and equinoctial 

 Africa, in both of which it is now at least naturalized, is 

 perhaps doubtful. 



Among PAPILIONACE/E, which constitute the prin- 

 cipal part of Leguniinosee in the collection, there is only 

 one plant with stamina entirely distinct. This decandrous 

 j)lant forms a genus very difterent from any yet established, 

 but to wdiich FodaJijria bracfeafa of Roxlnirgh^ belongs. 



llie genera composing Papilionacese on the banks of the 

 Congo have, upon the wdiole, 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 Pferocarjms in the collection, one is 

 hardly to be distinguished from P. EcastaphijUum, unless 

 by the want of the short acumen existing in the plant of 

 Jamaica. The second agrees entirely with Linnaeus's 

 original specimen of F. lunatus from Surinam, and seems 

 to be not uncommon on the west coast of equinoctial 

 Africa ; having been observed by Professor Afzehus 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 Hedysariim triflorum, both of which 

 occur in the collection; are common to equinoctial Asia 

 and America. 



TEREBINTACE^i, as given by j\I. de Jussieu, appears 

 to be made up of several orders nearly related to each 

 other, and of certain genera having but little aflinity to 

 any of them. Of this, indeed, the illustrous author of the 

 Genera Plantarum seems to have been aware, lie pro- [431 



' Coromavd. Vlunts, 3 tab. ^ Reise tiach Gulnni,}). 110. 



