Laing. — Revised List of the Norfolk Island Flora 39 



173. Senecio lautus Forst., M. 57. 



I sot a form of this on the beach near the Cascades. 

 Kermadecs, New Zealand, Australia. 



174. Sonchus oleraceus L., M. 58. 



Sow-thistle. Was recorded by Captain Cook, but was not listed until 

 Maiden collected it. Phillip Island also (R. M. L.). 

 Everywhere except in the frigid zone. 



175. Bidens pilosa L., M. 54. 



Quite probably only naturalized, as it was not collected by Bauer or 

 Cunningham. 



Lord Howe, New Caledonia, Kermadecs, New Zealand, Australia, and 

 widely in warm and temperate regions. 



Art. II. — Notes on Aciphylla, with Descriptions of New Species. 



By T. F. Cheeseman, F.L.S., F.Z.8., Curator of the Auckland Museum. 



[Read before the Auckland Institute, 16th December, 1914.] 



It is somewhat singular that the genus Aciph/lla, so readily identified from 

 its remarkably distinct and conspicuous habit, and so full of interest in 

 other respects, should not have received more attention from New Zealand 

 botanists ; but although it probably contains a greater number of species 

 than any other genus of Umbelliferae in New Zealand our knowledge of the 

 various forms has been of slow growth, and at present is far removed from 

 completeness. The genus was established by the two Forsters in 1776, 

 very shortly after Cook's second voyage, the single species collected by 

 them being named Aciphjlla squamosa. In 1853, or seventy-seven years 

 later, when Sir J. D. Hooker published his " Flora Novae- Zelandiae," 

 A. squarrosa was still the only species admitted, although the plant now 

 known as A. Colensoi was included in Hooker's variety latifolia. In the 

 second volume of the Flora, issued two years later, A. Monroi was added 

 In the first part of the Handbook, published in 1864, A. Colensoi was defi- 

 nitely separated from A. squarrosa, and A. Lyallii and A. Dobsoni were 

 described, making (with A. Monroi) five species in all, to which a sixth 

 was shortly afterwards added in the Chatham Islands A. T raver sii. For 

 many years no further additions were recorded, and attempts were even 

 made to reduce those already published. Thus Mr. Hemsley informs me 

 that at an early date Mr. Buchanan suggested to the Kew authorities that 

 A. Lyallii should be treated as an alpine form of A. Colensoi, and A. Monroi 

 of A. squarrosa. However, between 1882 and 1900 six additional species 

 were described : two, A. Hectori and A. Kirkii, by Buchanan ; three, 

 A. Traillii, A. polita, and A. Hookeri, by Kirk; and one, A. simplex, by 

 Petrie. In the " Manual of the New Zealand Flora," published in 1906, 

 I have enumerated thirteen species ; that is, excluding the Chatham Islands 

 A. Dieffenbachii, which now constitutes the type of my genus Coxella, but 

 including A. Townsoni, described in the appendix. 



