A464 APPENDIX. No. V. 
These are Cycadezx, Piperacese, Begoniacex, Laurin (Cassytha excepted,) 
Passifloreze, Myrsinee, Magnoliacee, Guttiferee, Hesperideze, Cedrelese, and 
Meliaceee. 
Cycadew, although not found in equinoctial Africa, exist at the Cape of 
Good Hope and m Madagascar. 
Piperacee, as has been already remarked by Baron Humboldt,* are very 
rare in equinoctial Africa; and indeed only two species have hitherto been 
published as belonging to the west coast: the first, supposed to be Piper Cubeba, 
and certainly very nearly related to it, is noticed by Clusius;++ the second is 
imperfectly described by Adanson in his account of Senegal. A third species, 
of Piper, however, occurs in Sir Joseph Banks’s herbarium, from Sierra 
Leone: and we know that at least One species of this genus and several of 
Peperomia, exist at the Cape of Good Hope. 
The extensive genus Begonia, which it is perhaps expedient to divide, may 
be considered as forming a natural order, whose place, however, among the 
Dicotyledonous families, is not satisfactorily determmed. Of Begoniacee,t 
no species has yet been observed on the continent of Africa, though several 
have been found in Madagascar and the Isles of France and Bourbon, and one 
in the Island of Johanna. 
No genus of Laurina, is known to exist in any part of the continent of 
Africa, except the paradoxical Cassytha, of which the only. species in the 
Congo collection ean hardly be distinguished from that of the West Indies, or 
from C. pubescens of New Holland. The absence of Laurinz on the continent 
of Africa is more remarkable, as several species of Laurus have been found 
both in Teneriffe and Madeira, and certain other genera belonging to this 
family exist in Madagascar and in the Isles of France and Bourbon, 
Passifloree. A few remarkable plants of this order have been observed 
on the different parts of the west coast of Africa, especially Modecca of the 
Hortus Malabaricus and Smeathmania, an unpublished genus already men- 
tioned in treating of Homaline. 
Myrsinew. No species of any division of this order, has been met 
with in equinoctial Africa, though several of the first section, or Myrsinex, 
* Nov. Gen. et Sp. Pl. Orb. Nov. 1, p. 60. p 
+ Piper ex Guinea, Clus. exvot. p. 184, who considers it as not different from the Piper 
caudatum, figured on the same page, and which is no doubt Piper Cubeba of the Malayan 
Archipelago. + Bonpland Malmais. 15}. 
