SUPPLEMENT 



JOURNAL OF THE PROCEEDINGS 



LINNEAN SOCIETY OF LONDON. 



The Natural Order Aurantiacecs, with a Synopsis of the Indian 

 Species. By Daniel Oliver, Esq., F.L.S., Professor of Botany 

 in University College, London. 



[Read December 6th, I860.] 



The review of the genera of the natural order Aurantiacecs * and 

 synopsis of the Indian species which I am now permitted to lay 

 before the Linnean Society, is chiefly based upon the examination 

 aud dissection of very numerous specimens in the large collection, 

 belonging to that family, contained in the Kew Herbarium. 

 Of the papers upon the genera and inter-generic relations of the 



* Exclusive of the species of Citrus. Feeling it utterly hopeless usefully to 

 define them, I have thought it best to leave the Oranges, Lemons, Limes, and 

 their allies as I found them. It has been difficult to form, for purposes of com- 

 parison, any satisfactory approximate estimate of the number of species in this 

 very variable and widely cultivated genus. From the data afforded by Risso, 

 Wreiro, Wight and Arnott, Miquel, and others, and from what I have myself 

 seen of dried or living specimens, I have assumed five as about the probable 

 number. Roemcr, in his ' Synopses Monographica?,' enumerates (exclusive of 

 some dubious names of Rafinesque's) between thirty and forty species ! This 

 botanist institutes moreover no fewer than seven new genera of Aurantiacece. 

 I do not consider that any of them can, with advantage, be adopted. His work 

 is made up apparently from published descriptions of species without examina- 

 tion of specimens ; the same species occurring sometimes two or three times 

 °ver, and not always in the same genus. I wholly agree with M. Planchon's 

 observation in 'Hortus Donatensis,' (p. 18 in note), on the ' Auranliatecz' 1 of 

 the ' Synopses.' 



L iyx. PROC. — BOTANV, VOL. V. SUPPLEMENT. B 



