formed of two confluent bracteæ, as is certainly the case with respect to the calyptra of Pilcanthus, 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 bracteæ; and in Eucalyptus globulus, where the flowers are solitary, two distinct bracteæ 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 bracteæ common to the whole umbel, and falls off at a very early period.
Ord. Nat. Rosaceæ.
Syst. Linn. Dodecandria Hexagynia.
Char. Gen. Calyx coloratus, 6-fidus, æstivatione valvata. Petala 0. Stam. 12, perigyna: Antherarum dorso glanduloso. Ovaria 6, distincta, monosperma, ovulo erecto. Styli terminales.
Cephalotus follicularis. 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 118° E. long.; beginning to flower about the end of December.
DESC. Herba perennis. Caulis abbreviatus vix uncialis, demersus sæpe sub terram divisus. Folia in apice vix emerso caulis conferta quasi radicalia, numerosa petiolata, exstipulata, elliptica, integerrima, enervia crassiuscula plana glabra pilisve raris instructa, viridia, 8-l6 lineas longa. Petiolus folio vix brevior, semiteres basi parum dilatata.
Ascidia foliis intermista, petiolisque similibus porrectis parumve deflexis insidentia. in orbem circa folia digesta, respectu petioli dependentia, quoad pro- 601] priam cavitatem erecta, subovata, operculata, uncialia; Extus ornata costis tribus ab ore cristato ortis, valde elevatis et sæpius apice longitudinaliter depresso latiusculo marginibus acutis pilosis; lateralibus obliquis dorsum versus tendentibus sensim declinantibus et prope medium lateris desinentibus in lineas cursum oblique anticum servantes pauloque supra basin ventris coalescentes; ventrali elevatiore recta, longitudine ascidii, apice semper latiusque depresso: Intus nitentia et e majore parte nigro-purpurea, paulo infra annulum costatum
