THE JOURNAL 
OF 
THE LINNEAN SOCIETY. 
A Revision of the Tribe Naucleee (Nat. Ord. Rubiacez). 
By G. D. Havinann, M.A., M.B., F.L.S. 
[Read 4th February, 1897. ] 
(Puates 1-4.) 
WHEN endeavouring to determine some Bornean plants I found 
such difficulty with the species of Nauwclea that it was necessary 
to go through the whole genus; and eventually I took up the 
tribe of plants to which it belongs. The causes of confusion 
have been. partly, that Linneus founded his Nauclea orientalis on 
more than one species ; and partly that A. Richard, when founding 
new genera, wrote his synonymy at random. Miquel, in his 
‘Flora Indie Batavie,’ added somewhat to the confusion ; but 
in the ‘Ann. Mus. Lugd.-Bat. vol. iv., he corrected most of the 
errors that he had made and did much to restore the genus to 
order. In the ‘ Flora of British India’ Sir Joseph Hooker dealt 
with the genus Uncaria, but the genus JVauclea is poorly repre- 
sented in the regions of that Flora. 
Although I worked chiefly at Kew, I found it necessary to 
visit the Herbaria at the British Museum, at Leiden, aud at 
Paris; at each of these places every possible facility was given me. 
I am much indebted for help in various matters that I have 
received at Kew, especially from Mr. Hemsley and from Dr. Stapf. 
I have assumed that the object of classification is to simplify 
knowledge, and that a natural classification is one in which the 
characters chosen in each group are those most convenient for 
the group, the groups having been formed by noticing similarity 
LINN. JOURN.—BOTANY, VOL. XXXIII. B 
