122 A COtfTBIBUTION TO, ETC, 



commend it. Senecio vagus is of the groundsel genus, and whilst, 

 according to Dr. Mueller, it nourishes in shady, moist valleys of 

 the Dandenong ranges of Mount Disappointment, and on the 

 Delatite, I have collected specimens of it on creeks in the county 

 of Camden. Myriogyne CunningJiami is an insignificant little plant, 

 remarkable for the abundance of its female florets, and if not iden- 

 tical with the species common in the neighbourhood of Sydney, is 

 certainly closely allied to it. Eclipta platyglossa is a small trail- 

 ing plant with yellow flowers and opposite leaves. We have 

 hitherto regarded it as a species of Wedelia, but whether the 

 species found in moist places in the county of Cumberland, is dis- 

 tinct from that collected at the Clarence, remains for consider- 

 ation. Dr. Mueller's figure suggests the propriety of regarding 

 them as different species. ElacJiotJiamnus Cunningliami has been 

 sometimes referred to Therogeron, and sometimes to Erigeron. It 

 does not appear to grow near Sydney, but it has been noticed in 

 the interior, particularly on the Darling and Macquarie. Humea 

 ozothamnoides does not at all resemble the species of Humea so 

 common near Sydney and Parramatta, and so remarkable for its 

 strong scented, tobacco-like leaves, but it looks like a C&ssinia 

 or Ozothamnus. Dr. Mueller, who first noticed this species on the 

 Upper Murray and the Snowy Eiver, regarded it as the type of a 

 new genus (H&ckerifl), but subsequently he referred it to Humea 

 (Frag. vol. 1, p. 17)- Polycalymma Stuartii is a largish flower, 

 consisting of a dense head of yellow florets, and belonging to a 

 genus established by Dr. Mueller in 1852. I have never seen it 

 in a living state, but my friend Mr. Frederick Suttor sent me 

 some good specimens of it from the Darling. Ethuliopsis dioica 

 is the Ethulia of Sir Thomas Mitchell, and the Epaltes of De Can- 

 dolle, and is remarkable for its dioecious flowers, the male and 

 female plants being distinct. The figure deserves attentive study, 

 and, in common with the other Composites of the work, affords 

 much assistance to any one desirous of arranging such flowers on 

 proper principles, and of referring them to their appropriate place 

 in the natural system. This flower occurs on the Macquarie, 

 Lachlan, Murrumbidgee, Murray, and Darling. Two of the myr- 

 taceous lithograms represent trees which are very interesting. 

 Eucalyptus odorata is the "peppermint" of South Australia, but 

 it is said to extend as far as New England. Whether this is 



