APPENDIX. No. V. 437 
Of RHIZOPHORE:,* as I have formerly proposed to limit it, namely, 
to Rhizophora, Bruguiera, and Carallia, the collection contains only one plant, 
which is a species of Rhizophora, the Mangrove of the lower part of the river, 
and probably of the whole line of coast, but very different both from that of 
America, and from those either of India or of other equinoctical countries that 
have been described. There is, however, a plant in the collection which, 
though not strictly belonging to this order, suggests a few remarks on its 
affinities. 
I referred Carallia+ to Rhizophorex, from its agreement with them in 
habit, and in the structure of its flower. It is still uncertain whether its reni- 
form seed is destitute of albumen; the absence of which, however, does not 
seem necessary to establish its affinity with the other genera of this order: for 
plants having the same remarkable economy in the germination of the embryo 
as that of Rhizophora, may belong to families which either have or are 
destitute of albumen. 
The plant referred to from Congo, may be considered as a new species of 
Legnotis, having its petals less divided than those of the original species of 
that genus, and each cell of its ovarium containing only two pendulous ovula. 
The genus Legnotis agrees with Carallia in habit, especially in having oppo- 
site leaves with intermediate stipules; in the valvular zstivation of its calyx, 
and in several other points of structure of its flower. It differs in its divided 
petals; in its greater number of stamina, disposed, however, in a simple 
series; and in its ovarium not cohering with the calyx. It is therefore still 
more nearly related to Richewia of M. du Petit Thouars,} from which perhaps 
it may not be generically distinct. The propriety of associating Carallia§ with 
Rhizophorez is not perhaps likely to be disputed; and its affinity to Legnotis, 
especially to the species from Congo, appears very probable. It would 
seem therefore that we have already a series of structures connecting Rhizo- 
phora on the one hand with certain genera of Salicaria, particularly with 
Antherylium, though that genus wants the intermediate stipules; and on the 
other with Cunoniacee,|| especially with the simple leaved species of Cerato- 
* Flinders’s Voy. 2, p. 549. + Roxburgh. Coromand. 3, p. 8, t. 211. 
+ Nov. Gen. Madagase, n. 84. 
§ Or Barraldeia, Du Petit Thouars, Nov. Gen. Madagasc, n. 82. 
| Flinders’s Voy. 2, p. 648. 
