III.— BOTANY. 



Art. XLVIT. — On the Flowering Plants and Ferns of the Chatham Islands. 

 By John Buchanan, of the Geological Survey Department. 



Plates XII— XY. 



\Read before the Wellington Philosophical Society, 21st Novemher, 1874.] 



The present list of the Chatham Island plants is compiled from the collection 

 in the herbarium of the Colonial Museum at Wellington. Nearly the whole 

 of this collection has been made by Mr. H. H. Travers in the course of two 

 visits paid to those islands in the years 1866 and 1871. A few specimens 

 have been added to the collection at different times by other parties visiting 

 those islands. With few exceptions all the plants in this list are also common 

 to New Zealand, and will be found described in Hooker's Handbook of the 

 New Zealand Flora, a work which is generally in the hands of every person 

 taking any interest in the subject. Short descriptions will be added of the 

 few not described there. 



This list, however, is only published provisionally till Baron F. von 

 Mueller, of Melbourne, who has undertaken the task, finds time from more 

 important labours to furnish a complete analytical list of the whole. 



An analysis of the present list shows the total number of plants indigenous 



to the Chatham Islands of the classes Dicotyledons, Monocotyledons, and 



Filical Alliance to be 205 species, belonging to 129 genera, and divided among 



the three classes as follows : — 



Gen. Sp. 



Dicotyledons ... ... ... 72 ... 109 



Monocotyledons ... ... ... 37 ... 49 



Ferns and Allies ... ... ... 20 ... 47 



129 205 



Of this number 191 species are common to New Zealand. One species, 

 Leucopogon richei, is also common to Australia, leaving only 1 3 species peculiar 

 to the Chatham Islands. The latter are marked with a * in the list. 



DICOTYLEDONS. 

 Banunculace^. 



Hanunculus plebeius, Br. 



rivularis, Banks and Sol. 

 acaulisj Banks and Sol. 



