76 GJiXERAL REMARKS ON THE 



formed of two confluent bractese, 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 bractese ; 

 and in Eucalyptus globulus, where the flowers are solitary, 

 two distinct bractese are present as well as a double oper- 

 culum. But a calyptra analogous to that of Pileanthus 

 exists also in most of the species of Eucalyptus, where it 

 is formed of the confluent bractese common to the whole 

 umbel, and falls off at a very early period. 



CEPHALOTUS. 



0['d. Nat. Rosacete. 



Syst,. Linn. Dodecaiidria Hexagynia. 



Char. Gen. Calyx coloratus, 6-fidus, sestivatione val- 

 vata. Petala 0. Stam. 12, perigyna: Antherarum 

 dorso glanduloso. Ovaria 6, distincta, monosperma, 

 ovulo erecto. Styli terminales. 



CePHALOTUS FOLLICULARIS. Tab. 4. 



Cephalotus foUicularis. Labillard. iiov. holl. 3, jo. 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° B. long. ; 

 beginning to flower about the end of December. 



DESC. Eerba perennis. Caulis abbreviatus vix unoialis, deinersus ssepe 

 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, 8-16 lineas longa. Petiohs folio vix 

 brevier, semiteres basi parum dilatata. 



Ascidia foliis interraista, petiolisque similibus porreotis parumve deflexis in- 

 sideutia, in orbem circa folia digesta, respeotu petioii dependentia, quoad pro- 

 tioi] priam cavitatem ereota, subovata, operculata, uncialia ; Extus ornata costis 

 tribus ab ore oristato orfcis, valde eleyatis et sa3pius apice longitudinaliter de- 

 presso latiusculo marginibus acutis pilosis; lateralibus obliquis dorsum versus 

 I endentibus sensim deciinantibus et prope medium lateris desineutibus in lineas 

 cursuni oblique antioum .servantes pauloque supra basin ventris coalescentes ; 

 DOT^ra/j elcvatiore recta, longitudine asoidii, apice semper latiusque depresso : 

 Mils nitentiaet e majore parte nigro- purpurea, paulo infra annuluni costatum 



