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APPENDIX. [ Botany of Terra Australis , 
stage, may, perhaps, be considered as formed of the calyx, and the inner 
consequently of corolla alone, as in Eudesmia: this view of the struc- 
ture appears at least very probable in contemplating Eucalyptus globulus, 
in which the cicatrix caused by the separation of the outer operculum is 
particularly obvious, and in which also the inner operculum is of an evi- 
dently different form. 
Jussieu, in some observations which he has lately made on this 
subject, (in Annales du mm. 19. p. 4-12 ,) seems inclined to consider the 
operculum of Eucalyptus as formed of two confluent bracte®, as is certainly 
the case with respect to the calyptra of Pileanthus, and of a nearly related 
genus of the same natural family. This account of its origin in Eucalyptus, 
however, is hardly consistent with the usual umbellate inflorescence of that 
genus ; the pedicelli of an umbel being always destitute of bracte® ; and in 
Eucalyptus globulus, where the flowers are solitary, two distinct bracte® are 
present as well as a double operculum. But a calyptra analogous to that 
of Pileanthus exists also in most of the species of Eucalyptus, where it is 
formed of the confluent bractea? common to the whole umbel, and falls off 
at a very early period. 
CEPHALOTUS. 
Ord. Nat. Ilosaceae. 
Syst. Linn. Dodecandria Hexagynia. 
Char. Gen. Calyx coloratus, 6 Jidus, mstivatione valvata. Petalao. Slam. 
12, perigyna : Antherarum dorso glanduloso. Ovaria 6, distincta, 
monosperma, ovulo erecto. Styli terminates, 
Cefhalotus foleicuearis. Tab. 4. 
Cephalotus follicularis. Labillard. nov. holl. 2. p. 7. t. 145. 
In marshy ground, in the neighbourhood of King George’s Sound, especially near 
the shores of Princess Royal Harbour, in 35° S. lat. and lid 0 E. long, j beginning to 
flower about the end of December. 
DESC. Herha p rennis. Caulis abbreviate vix uncialis, demersus, saepe sub terrain 
divisus. Folia m apice vix emcrso caulis conferta quasi radicalia, numerosa, petiolata, 
exstipulata, elliptica integerrima, enervia erassiuscula piana glabra pilisve raris instructa, 
viridia, 8-1G lineas longa. Petiolus folio vix brevior, semiteres basi parutu dilatata. 
Ascidia foliis internists, petiolisque similibus porrectis parumve deflexis insiden- 
tia, in orhern circa folia digesta, respectu petioli dependentia, quoad propriam cavitatem 
