544 
APPENDIX. [ Botany of Terra Australis. 
Loureiro, a genus which is certainly not monandrous, as that author affirms, 
but has four connected filaments with distinct unilocular anther®, and 
consequently halfthe number of stamina usually found in the order. Most 
of the Comesperm® exist in the principal parallel , and equally at both its 
extremities ; several, however, are found beyond it, and in both directions ; 
the genus extending from Arnhem’s Land to Adventure Bay. The 
greater part of the Polygal® and the genus Salomonia exist only within 
the tropic, 
TREMANDREvE * The genus Tetratheca of Dr. Smith and one very 
nearly related to it, which I shall hereafter publish under the name of 
Tremandra, constitute a small tribe of plants peculiar to Terra Australis. 
For this tribe I prefer the name Tremandrece to that of Tetrathecace®, as 
it is more distinctly, and at the same time more correctly descriptive of the 
structure of stamina in both genera; the four distinct cells in the ripe state 
of the anther® not existing in Tremandra, nor even in all the species ol 
Tetratheca. In the quadrilocular anther® of the latter genus there is in- 
deed nothing peculiar, that being the original structure of all those anther® 
which are commonly described as bilocular ; and the difference in this 
case depending on the mode of bursting, which when lateral, necessarily 
obliterates two of the septa, but when terminal, as in Tetratheca, admits 
of their persistence. It is remarkable that both Dr. Smith and Labillar- 
diere have mistaken the fungous appendix of the apex of the seed for an 
umbilical caruncula, a mistake involving a second, that of considering the 
seeds erect in the capsule, and which has led Labillardiere into a third 
error, namely, describing the radicule of the embryo as pointing towards 
this supposed umbilical appendix. 
* Teemandee.®. Calyx 4-5-ph. squalls, sestivatione valvata. Pctala 4-5, mqualia : 
sestivatione involuta stamina includentia. Stamina 8-10, hypogyna, distincta : Anther a; 
2-4-loculanes, basi insertse, poro tubulove apicis dehiscentes. Ovarium 2-loc. loculis 1-3- 
spermis, ovulis pendulis : Stylus 1 : Stigmata 1-2. Capsula bilocularis, bivalvis, valvis 
medio septigeris. Semina umbilico nudo : extremitate opposita appendiculata ; albumi- 
nosa- Embryo in axi albuminis carnosi cujus dimidio longior : radicula umbilicum 
spectante. Fruticuli ericoides. Folia sparsa vel verticillata , exstipulata ■ Pedunculi 
axillares, uniflori, 
